#LyX 1.4.0cvs created this file. For more info see http://www.lyx.org/ \lyxformat 245 \begin_document \begin_header \textclass book \language english \inputencoding latin1 \fontscheme default \graphics none \paperfontsize default \spacing single \papersize default \use_geometry false \use_amsmath 0 \cite_engine basic \use_bibtopic false \paperorientation portrait \secnumdepth 3 \tocdepth 2 \paragraph_separation indent \defskip medskip \quotes_language english \papercolumns 1 \papersides 2 \paperpagestyle headings \tracking_changes false \output_changes true \end_header \begin_body \begin_layout Title The LyX Tutorial \end_layout \begin_layout Author by the LyX Team \begin_inset Foot status collapsed \begin_layout Standard Principal maintainer of this file is \noun on Amir Karger \noun default . If you have comments or error corrections, please send them to the LyX Documentation mailing list, \family typewriter lyx-docs@lists.lyx.org \family default . \end_layout \end_inset \end_layout \begin_layout Standard \begin_inset LatexCommand \tableofcontents{} \end_inset \end_layout \begin_layout Chapter Introduction \end_layout \begin_layout Section Welcome to LyX! \end_layout \begin_layout Standard This file is designed for all of you who have never heard of LaTeX, or don't know it very well. Now, don't panic - you won't need to learn LaTeX to use LyX. That is, after all, the whole point of LyX: to provide an almost-WYSIWYG interface to LaTeX. There are some things you will need to learn, however, in order to use LyX effectively. \end_layout \begin_layout Standard Some of you probably found your way to this document because you tried to put two spaces after a \begin_inset Quotes eld \end_inset . \begin_inset Quotes erd \end_inset or tried to put 3 blank lines between paragraphs. After much frustration, you found you couldn't. In fact, you'll find that most of the little tricks you're accustomed to using in other word processors just won't work in LyX. That's because most word processors you've used before allow you to manually enter all spacings, font changes, and so on. So you end up not only writing a document but typesetting it, too. LyX does the typesetting for you, in a consistent fashion, letting you focus on the important things, like the content of your writing. \end_layout \begin_layout Standard So, bear with us and read on. Reading this tutorial is definitely worth the time. \end_layout \begin_layout Section What the Tutorial \emph on is \emph default and What it \emph on isn't \end_layout \begin_layout Standard Before we get started with this section, we want to make a quick note of something. The \emph on Tutorial \emph default uses the notation outlined in the \emph on Introduction \emph default \SpecialChar \@. If you came to this manual first, go read the \emph on Introduction \emph default \SpecialChar \@. Yes, we mean now. \end_layout \begin_layout Standard Now that you know which fonts mean what, we want to talk a bit about what this \emph on Tutorial \emph default is for. \end_layout \begin_layout Subsection Getting the Most out of the Tutorial \end_layout \begin_layout Standard This tutorial consists of examples and exercises. To get the most out of this document, you should read through the document, typing all the silly little things we're telling you to type and trying out all of the exercises to see if you get them right. For convenience, you might want to print out the PostScript® version of this document. \end_layout \begin_layout Standard If you are familiar with LaTeX, you'll probably be able to read the \emph on Tutorial \emph default somewhat faster, since many LyX ideas are just LaTeX ideas in disguise. However, LyX does have idiosyncrasies \begin_inset Foot status collapsed \begin_layout Standard or, more optimistically, \begin_inset Quotes eld \end_inset features \begin_inset Quotes erd \end_inset \end_layout \end_inset you'll want to learn about. Even if you don't feel like reading the rest of the \emph on Tutorial \emph default , you should definitely check out Section\InsetSpace ~ \begin_inset LatexCommand \ref{sec:latexusers} \end_inset , which is specifically written for experienced LaTeX users. \end_layout \begin_layout Subsection What You \emph on Won't \emph default Find: \end_layout \begin_layout Itemize Detailed explanations of all of LyX's features. \end_layout \begin_deeper \begin_layout Standard What, you want the \emph on User's Guide \emph default twice? \end_layout \begin_layout Standard Seriously, though, we're here to get you up and running so that all you need is the \emph on User's Guide \emph default . If we tried to duplicate all of the information about all of LyX's features in here, the \emph on Tutorial \emph default would be redundant, too long, and forever out of date. All we do here is introduce things; imagine there is a \begin_inset Quotes eld \end_inset see the \emph on User's Guide \emph default \begin_inset Quotes erd \end_inset at the end of every section. \end_layout \end_deeper \begin_layout Itemize Detailed explanations of LaTeX. \end_layout \begin_deeper \begin_layout Standard Unnecessary. If you're really curious about learning some of the neat tricks you can do with LaTeX, you can always go get a LaTeX book. There are several good ones on the market. No need to reinvent the wheel, after all\SpecialChar \ldots{} \end_layout \end_deeper \begin_layout Standard So, brave soul, it's time to move onwards. Time for your first document \SpecialChar \ldots{} \end_layout \begin_layout Chapter Getting Started with LyX \end_layout \begin_layout Section Your First LyX Document \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:first-doc-ex} \end_inset OK\SpecialChar \@. You're ready to start writing. Before you do, though, there are a few things we need to mention, which will hopefully make the \emph on Tutorial \emph default more instructive, useful, and fun. \end_layout \begin_layout Standard Because there's lots of information that we won't be giving you, the \emph on first \series medium \emph default thing that you need to do is find the \series default other \series medium help files. Luckily, this is very simple. \series default Start up LyX. Choose the \emph on User's Guide \emph default from the \family sans \bar under H \bar default elp \family default menu. You may want to load the \emph on Tutorial \emph default as well (if you're not reading it on screen already). This way, you can read them while you're writing your own file \begin_inset Foot status collapsed \begin_layout Standard They can also serve as good examples of how to use the many features of LyX. \end_layout \end_inset . Note that once you've got more than one document open, you can use the \family sans \bar under D \bar default ocuments \family default menu to switch between them. The \emph on Tutorial \emph default will not cover in detail subjects which are described in the other LyX manuals. This may make life a bit harder for you at the beginning, but it will keep the \emph on Tutorial \emph default short. It will also get you in the habit of using the other manuals, which --- in the long run --- will save you a lot of time. \end_layout \begin_layout Standard In this \emph on Tutorial \emph default , we're going to assume that you have a fully working version of LyX, as well as LaTeX, \family typewriter xdvi \family default or some other dvi viewer, \family typewriter dvips \family default or some other way of converting \family typewriter dvi \family default documents to PostScript® documents, and a working printer. This is a lot to assume. If any of this is not true, you (or a friendly system administrator) will need to set up your system. You can find information on setup in other manuals. \end_layout \begin_layout Standard Finally, we've written a file to let you practice your LyX skills on. It's called \family typewriter example_raw.lyx \family default . Imagine that it was typed by someone who didn't know about any of LyX's great features. As you learn new LyX functions, we'll suggest that you fix those parts of \family typewriter example_raw.lyx \family default . It also contains \begin_inset Quotes eld \end_inset subtle \begin_inset Quotes erd \end_inset hints about how to fix things \begin_inset Foot status collapsed \begin_layout Standard The hints are located in yellow \begin_inset Quotes eld \end_inset Notes \begin_inset Quotes erd \end_inset . Access the text in a note by clicking on it. \end_layout \end_inset . If you want to cheat (or check what you've done), there's also a file called \family typewriter example_lyxified.lyx \family default which contains the same text as written and typeset by a LyX master. \end_layout \begin_layout Standard The example files can be found in the \family typewriter examples/ \family default directory, which you can get to by selecting \family sans \bar under F \bar default ile\SpecialChar \menuseparator \bar under O \bar default pen \family default and then clicking on the \family sans \bar under E \bar default xamples \family default button. Open the raw document, and use \family sans \bar under F \bar default ile\SpecialChar \menuseparator Save \bar under \InsetSpace ~ A \bar default s \family default to save a copy in your own directory for you to work on. As you fix parts of the raw document, check to see how those changes affect the dvi output. \end_layout \begin_layout Standard By the way, the \family typewriter examples/ \family default directory contains lots of other examples files. They will show you how to do various fancy things with LyX. They are especially useful to display things that (due to length or other reasons) won't fit in the documentation. After you read the \emph on Tutorial \emph default , or when you're confused about how to do something fancy in LyX, take a look at these files. \end_layout \begin_layout Subsection Typing, Viewing, and Printing \end_layout \begin_layout Itemize Open a new file with \family sans \bar under F \bar default ile\SpecialChar \menuseparator \bar under N \bar default ew \end_layout \begin_layout Itemize Type a sentence like: \family typewriter This is my first LyX document! \end_layout \begin_layout Itemize Save your document with \family sans \bar under F \bar default ile\SpecialChar \menuseparator Save\InsetSpace ~ \bar under A \bar default s\SpecialChar \@. \end_layout \begin_layout Itemize Run LaTeX to create a \family typewriter dvi \family default file, with \family sans \bar under V \bar default iew\SpecialChar \menuseparator \bar under D \bar default VI \family default \SpecialChar \@. You may see things being printed in the window you ran the \family typewriter lyx \family default command from. These are messages from LaTeX, which you can ignore for now. LyX will run \family typewriter xdvi \family default (or some other \family typewriter dvi \family default viewer), which will pop up a new window displaying what your document will look like when printed. \begin_inset Foot status collapsed \begin_layout Standard You can save time by leaving \family typewriter xdvi \family default running in the background. Then, you can use \family sans \bar under V \bar default iew\SpecialChar \menuseparator \bar under U \bar default pdate\SpecialChar \menuseparator \bar under D \bar default VI \family default and just click on the \family typewriter xdvi \family default window (or unminimize it) after LaTeX finishes running. \end_layout \end_inset \end_layout \begin_layout Itemize Print by using \family sans \bar under F \bar default ile\SpecialChar \menuseparator \bar under P \bar default rint \family default and hitting \family sans OK\SpecialChar \@. \end_layout \begin_layout Standard Congratulations! You've written and printed your first LyX document. All of the rest is just details, which is covered in the rest of the \emph on Tutorial \emph default , the \emph on User's Guide \emph default , and the \emph on Extended \emph default \emph on Features \emph default . \end_layout \begin_layout Subsection Simple Operations \end_layout \begin_layout Standard LyX can of course do most of the things you're used to doing with a word processor. It will word-wrap and indent paragraphs automatically. Here's a quick description of how to do some simple actions. \end_layout \begin_layout Description Undo LyX has multiple levels of undo, which means you can undo everything you've done since your current editing session started, by selecting \family sans \bar under E \bar default dit\SpecialChar \menuseparator \bar under U \bar default ndo \family default over and over again. If you undo too much, just select \family sans \bar under E \bar default dit\SpecialChar \menuseparator \bar under R \bar default edo \family default to get it back. \end_layout \begin_deeper \begin_layout Standard Currently, undo is limited to 100 steps. Undo also doesn't work for \emph on everything \emph default ; for instance, changes to the document layout. Each of these is really a LyX bug. \end_layout \end_deeper \begin_layout Description Cut/Paste/Copy Use \family sans \bar under E \bar default dit\SpecialChar \menuseparator Cut \family default , \family sans \bar under E \bar default dit\SpecialChar \menuseparator Copy \family default , and \family sans \bar under E \bar default dit\SpecialChar \menuseparator Paste \family default to cut, copy, and paste. Or automatically paste selected text (including selections from other programs) with the \emph on middle mouse button \emph default . \end_layout \begin_layout Description Find/Replace Use \family sans \bar under E \bar default dit\SpecialChar \menuseparator \bar under F \bar default ind\InsetSpace ~ &\InsetSpace ~ Replace \family default for a search. In the dialog, search with the \family sans \bar under F \bar default ind \family default button, and use the \family sans \bar under R \bar default eplace \family default button to replace a word you've found \begin_inset Foot status collapsed \begin_layout Standard Close the window when you're done. Or leave it open if you find it more convenient. Most dialog boxes in LyX --- including the \family sans Find\InsetSpace ~ &\InsetSpace ~ Replace \family default , \family sans Table\InsetSpace ~ of\InsetSpace ~ Contents \family default , and \family sans Layout \family default dialogs, as well as the various math dialogs can operate like this. A few dialogs, like \family sans \bar under F \bar default ile\SpecialChar \menuseparator \bar under O \bar default pen \family default , won't let you type anything in the main LyX window until you actually close the dialog. Just be sure you have the right window focus when you're trying to type in the main LyX window or give a command in some other LyX dialog. \end_layout \end_inset . If you like, you can specify whether to make the search case-sensitive, or to search for only complete words; you can also search backwards through the document. \end_layout \begin_layout Description Character\InsetSpace ~ Formatting You can \emph on emphasize \emph default text (which will generally put characters in italics), put it in \series bold bold face \series default , or in \noun on Noun Style \noun default (usually small caps, used for people's names) from the toggle buttons in the \family sans \bar under E \bar default dit\SpecialChar \menuseparator Text\InsetSpace ~ \bar under S \bar default tyle \family default dialog. \end_layout \begin_layout Description Toolbar There are buttons on the toolbar (just below the menus) which allow you to do some of the more popular functions, such as \family sans Paste \family default and \family sans Print \family default . \end_layout \begin_layout Standard Of course, you haven't yet written enough to make most of these functions useful. As you write more, though, try undoing, pasting, etc. \end_layout \begin_layout Subsection WYSIWYM: Whitespace in LyX \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:whitespace} \end_inset One of the hardest things for new users to get used to is the way that LyX handles whitespace. As many times as you hit \family sans Return \family default , you'll only get one blank line. As many times as you hit \family sans Space \family default , you'll only get one space. On a blank line, LyX won't let you type even one space. The \family sans Tab \family default key won't move you forward one tab stop; in fact there \emph on are \emph default no tab stops! There's no ruler at the top of the page to let you set tabs or margins, either. \end_layout \begin_layout Standard Many commercial word processors are based on the WYSIWYG principle: \begin_inset Quotes eld \end_inset What You See Is What You Get. \begin_inset Quotes erd \end_inset LyX, on the other hand, is based on the principle that \begin_inset Quotes eld \end_inset What You See Is What You \emph on Mean \emph default . \begin_inset Quotes erd \end_inset You type what you mean, and LyX will take care of typesetting it for you, so that the output looks nice. A \family sans Return \family default grammatically separates paragraphs, and a \family sans Space \family default grammatically separates words, so there is no reason to have several of them in a row; a \family sans Tab \family default has no grammatical function at all, so LyX does not support it. Using LyX, you'll spend more of your time worrying about the \emph on content \emph default of your document, and less time worrying about the \emph on format. \emph default See the \emph on Introduction \emph default for more information on the WYSIWYM concept. \end_layout \begin_layout Standard LyX does have (many) ways to fine-tune the formatting of your document. After all, LyX might not typeset \emph on exactly \emph default what you mean. The \emph on User's Guide \emph default has information about all that. It includes \family sans HFill \family default s and vertical space --- which are more powerful and versatile than multiple spaces or blank lines --- and ways to change font sizes, character styles, and paragraph alignments by hand. The idea, though, is that you can write your whole document, focusing on content, and just worry about that fine-tuning at the end. With standard word processors, you'll be distracted by document formatting throughout the writing process. \end_layout \begin_layout Section Environments \end_layout \begin_layout Standard Different parts of a document have different purposes; we call these parts \emph on environments \emph default . Most of a document is made up of regular text. Section (chapter, subsection, etc.) titles let the reader know that a new topic or subtopic will be discussed. Certain types of documents have special environments. A journal article will have an abstract, and a title. A letter will have neither of these, but will probably have an environment that gives the writer's address. \end_layout \begin_layout Standard Environments are a major part of the \begin_inset Quotes eld \end_inset What You See Is What You Mean \begin_inset Quotes erd \end_inset philosophy of LyX. A given environment may require a certain font style, font size, indenting, line spacing, and more. This problem is aggravated, because the exact formatting for a given environmen t may change: one journal may use boldface, 18 point, centered type for section titles while another uses italicized, 15 point, left justified type; different languages may have different standards for indenting; and bibliography formats can vary widely. LyX lets you avoid learning all the different formatting styles. \end_layout \begin_layout Standard The \family sans Environment \family default box is located on the left end of the toolbar (just under the \family sans \bar under F \bar default ile \family default menu). It indicates which environment you're currently writing in. While you were writing your first document, it said \begin_inset Quotes eld \end_inset Standard, \begin_inset Quotes erd \end_inset which is the default environment for text. Now you will put a number of environments in your new document so that you can see how they work. You'll do so with the \family sans Environment \family default menu, which you open by clicking on the \begin_inset Quotes eld \end_inset down arrow \begin_inset Quotes erd \end_inset icon just to the right of the \family sans Environment \family default box. \end_layout \begin_layout Subsection Sections and Subsections \end_layout \begin_layout Standard Type the word \family typewriter Introduction \family default on the first line of your LyX file, and select \family sans Section \family default from the \family sans Environment \family default menu \begin_inset Foot status collapsed \begin_layout Standard You don't have to \emph on select \emph default the line. If nothing is selected, LyX changes the paragraph you are currently in to the selected environment. Alternatively, you can change several paragraphs to a different environment by selecting them before picking an environment. \end_layout \end_inset . Be sure to use \family sans Section \family default and \emph on not \emph default \family sans Section* \family default , which will be covered below. LyX numbers the section \begin_inset Quotes eld \end_inset 1 \begin_inset Quotes erd \end_inset and typesets the section heading (title) in a larger font. Now hit \family sans Return \family default \SpecialChar \@. Note that the \family sans Environment \family default box changes from \begin_inset Quotes eld \end_inset Section \begin_inset Quotes erd \end_inset back to \begin_inset Quotes eld \end_inset Standard \begin_inset Quotes erd \end_inset . Section headings, like most environments, are assumed to end when you type \family sans Return \family default \SpecialChar \@. Type the document introduction: \end_layout \begin_layout LyX-Code This is an introduction to my first LyX document. \end_layout \begin_layout Standard Hit \family sans Return \family default again, and select \family sans Section \family default from the \family sans Environment \family default menu again. LyX writes a \begin_inset Quotes eld \end_inset 2 \begin_inset Quotes erd \end_inset and waits for you to type a title. Type \family typewriter More Stuff \family default , and you'll see that LyX again sets it as a section title. \end_layout \begin_layout Standard It gets better. Go to the end of Section\InsetSpace ~ 1 again (after \begin_inset Quotes eld \end_inset my first LyX document \begin_inset Quotes erd \end_inset ) and hit \family sans Return \family default again, and select \family sans Section \family default from the \family sans Environment \family default menu again. Again, LyX writes \begin_inset Quotes eld \end_inset 2 \begin_inset Quotes erd \end_inset and waits for you to type a title. Type \family typewriter About This Document \family default . Section\InsetSpace ~ \begin_inset Quotes eld \end_inset More Stuff \begin_inset Quotes erd \end_inset , which used to be Section\InsetSpace ~ 2, has been automatically renumbered to Section\InsetSpace ~ 3! In true WYSIWYM fashion, you just need to identify the text that makes up the section titles, and LyX takes care of numbering the sections and typesetting them. \end_layout \begin_layout Standard Hit \family sans Return \family default to get back to the \family sans Standard \family default environment, and type the following five lines: \end_layout \begin_layout LyX-Code Sections and subsections are described below. \end_layout \begin_layout LyX-Code Section Description \end_layout \begin_layout LyX-Code Sections are bigger than subsections. \end_layout \begin_layout LyX-Code Subsection description \end_layout \begin_layout LyX-Code Subsections are smaller than sections. \end_layout \begin_layout Standard Click on the second line and select \family sans Subsection \family default from the \family sans Environment \family default menu. LyX numbers the subsection \begin_inset Quotes eld \end_inset 2.1 \begin_inset Quotes erd \end_inset , and typesets it in a font which is bigger than regular text but smaller than the section title. Change the fourth line \family sans Subsection \family default environment as well. As you probably expected, LyX automatically numbered the section \begin_inset Quotes eld \end_inset 2.2 \begin_inset Quotes erd \end_inset . If you put yet another section before Section\InsetSpace ~ 2, Section\InsetSpace ~ 2 will be renumbered as Section 3, and the subsections will be renumbered to \begin_inset Quotes eld \end_inset 3.1 \begin_inset Quotes erd \end_inset and \begin_inset Quotes eld \end_inset 3.2 \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Standard Further levels of sectioning include \family sans Subsubsection \family default , \family sans Paragraph \family default , and \family sans Subparagraph \family default . We'll let you play with these on your own. You may notice that paragraph and subparagraph headings are not numbered by default, and that subparagraphs are indented; see the \emph on User's Guide \emph default to change this. \family sans Chapter \family default headings are actually the highest level of sectioning, above \family sans Section \family default s, but you're only allowed to use them in certain types (text classes) of LyX documents (see Section\InsetSpace ~ \begin_inset LatexCommand \ref{sec:textclasses} \end_inset ). \end_layout \begin_layout Standard Finally, you may want to have sections or subsections that are not numbered. There are environments for this as well. If you change one of your section headings to the \family sans Section* \family default environment (you may have to scroll down in the \family sans Environment \family default menu to find it), LyX will use the same font size for the heading as it uses for a regular section, but it won't number that section. There are corresponding \begin_inset Quotes eld \end_inset starred \begin_inset Quotes erd \end_inset heading environments for \family sans Subsection \family default and \family sans Subsubsection \family default . Try changing some of your sections or subsections to the starred environments, and note how the other sections' numbers are updated. \end_layout \begin_layout Standard \series bold Exercise \series default : Fix the section and subsection headings in \family typewriter example_raw.lyx \family default . \end_layout \begin_layout Subsection Lists and sublists \end_layout \begin_layout Standard LyX has several different environments for typesetting lists. The various list environments free you from hitting \family sans Tab \family default a million times when writing an outline, or from renumbering a whole list when you want to add a point in the middle of the list, and lets you concentrat e on the list content. \begin_inset Foot status collapsed \begin_layout Standard Yes, we're overemphasizing this point throughout the \emph on Tutorial \emph default . But it \emph on is \emph default the main philosophy of LyX, so please forgive us. \end_layout \end_inset Different types of documents logically require different list environments: \end_layout \begin_layout Itemize A slide presentation might use the \family sans Itemize \family default environment's bulleted lists to describe different points. \end_layout \begin_layout Itemize An outline would use the \family sans Enumerate \family default environment's numbered lists (and lettered sublists). \end_layout \begin_layout Itemize A document describing several software packages could use the \family sans Description \family default environment, where each item in the list begins with a bold-faced word. \end_layout \begin_layout Itemize The \family sans List \family default environment --- not found in LaTeX --- is a slightly different form of \family sans Description \family default . \end_layout \begin_layout Standard Let's write a list of reasons why LyX is better than other word processors. Somewhere in your document, type: \end_layout \begin_layout Standard \family typewriter Lyx is better than other word processors because: \end_layout \begin_layout Standard and hit \family sans Return \family default . Now select \family sans Itemize \family default from the \family sans Environment \family default menu. LyX writes a \begin_inset Quotes eld \end_inset bullet \begin_inset Quotes erd \end_inset (actually, an asterisk, which will be converted to a round circle on output) on the line. Type in your reasons: \end_layout \begin_layout LyX-Code Typesetting is done for you. \end_layout \begin_layout LyX-Code Math is WYSIWYG \end_layout \begin_layout LyX-Code Lists are very easy to create! \end_layout \begin_layout Standard List environments, unlike headings, do not end when you type \family sans Return \family default . Instead, LyX assumes you're going on to the next item in the list. The above will therefore result in a three-item list. If you want more than one paragraph within one list \emph on item \emph default , one way is to use the \family sans Protected\InsetSpace ~ Break \family default , which you get by typing \family sans C-Return \family default . In order to get out of the list, you need to reselect the \family sans Standard \family default environment (or just use the keybinding, \family sans M-p\InsetSpace ~ s \family default ). \end_layout \begin_layout Standard You've got a beautiful itemized list. You might want to run LaTeX to see how the list looks when printed out. But what if you wanted to number the reasons? Well, just select the whole list \begin_inset Foot status collapsed \begin_layout Standard LyX won't let you select the first bullet unless you also select the paragraph \emph on before \emph default the list, which you probably don't want to do. Similarly, you can't select the actual number in a numbered section title. Don't worry about it. \end_layout \end_inset and choose \family sans Enumerate \family default from the \family sans Environment \family default menu. Pow! As we mentioned, if you add or delete a list item, LyX will fix the numbering. \end_layout \begin_layout Standard While the list is still selected, you can change to the other two list environme nts, \family sans Description \family default and \family sans List \family default , in order to see what they look like. For those two environments, each list item is made up of a term, which is the item's first word, followed by a definition, which is the rest of the paragraph (until you hit \family sans Return \family default .) The term is either typeset in boldface ( \family sans Description \family default ) or separated by a \begin_inset Quotes eld \end_inset Tab \begin_inset Quotes erd \end_inset \begin_inset Foot status collapsed \begin_layout Standard But a typesetter's tab, which will change to fit the size of the largest term, not a pathetic, rigid, unchangeable typewriter \family sans Tab \family default . \end_layout \end_inset ( \family sans List \family default ) from the rest of the paragraph. If you want to have more than one word in the definition, then separate the words with \family sans Protected\InsetSpace ~ Blank \family default s. \end_layout \begin_layout Standard \series bold Exercise \series default : Typeset the list in \family typewriter example_raw.lyx \end_layout \begin_layout Standard You can nest lists within each other in all sorts of interesting ways. An obvious example would be writing outlines. Numbered and bulleted lists will have different numbering and bulleting schemes for sublists. See the \emph on User's Guide \emph default for details on the different sorts of lists, as well as examples which use \emph on a lot \emph default of nesting. \end_layout \begin_layout Subsection Other Environments: Verses, Quotations, and More \end_layout \begin_layout Standard There are two environments for setting quotations apart from surrounding text: \family sans Quote \family default for short quotes and \family sans Quotation \family default for longer ones. Computer code (the \family sans LyX-Code \family default environment, also used in the \emph on Tutorial \emph default for the long typing examples) is written in a \family typewriter typewriter \family default font; this environment is the only place in LyX where you're allowed to use multiple spaces to allow code indenting. You can even write poetry using the \family sans Verse \family default style, using \family sans Return \family default to separate stanzas, and \family sans C-Return \family default to separate lines within a stanza. See the \emph on User's Guide \emph default for more complete descriptions of all of the available LyX environments. \end_layout \begin_layout Standard \series bold Exercise \series default : Correctly typeset the \family sans Quote, LyX-Code, \family default and \family sans Verse \family default in \begin_inset ERT status inlined \begin_layout Standard \backslash linebreak \end_layout \end_inset \family typewriter example_raw.lyx \end_layout \begin_layout Chapter Writing Documents \end_layout \begin_layout Standard The previous chapter hopefully allowed you to get used to writing in LyX. It introduced you to the basic editing operations in LyX, as well as the powerful method of writing with environments. Most people who use LyX, though, will want to write documents: papers, articles, books, manuals, or letters. This chapter is meant to take you from simply writing text with LyX to writing a complete document. It will introduce you to text classes, which allow you to write different sorts of documents. It will then describe many of the additions that turn text into a document, such as titles, footnotes, cross references, bibliographies, and tables of contents. \end_layout \begin_layout Section Text classes \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:textclasses} \end_inset Different sorts of documents should be typeset differently. For example, books are generally printed double-sided, while articles are single-sided. In addition, many documents contain special environments: letters contain some environments --- such as the sender's address and the signature --- which do not make sense in a book or article. The LyX \emph on text class \begin_inset Foot status collapsed \begin_layout Standard LaTeX users: this is equivalent to the LaTeX document class \end_layout \end_inset \emph default takes care of these large scale differences between different sorts of documents. This \emph on Tutorial \emph default , for example, was written in the \family sans Book \family default text class. Text classes are another major part of the WYSIWYM philosophy; they tell LyX how to typeset the document, so you don't need to know how. \end_layout \begin_layout Standard Your document is probably being written in the \family sans Article \family default text class \begin_inset Foot status collapsed \begin_layout Standard That's usually the default text class \end_layout \end_inset . Try changing to other text classes (using the \family sans \bar under D \bar default ocument\SpecialChar \menuseparator \bar under S \bar default ettings \family default dialog) to see how they are typeset differently. If you change your document to the \family sans Book \family default text class and look at the \family sans Environment \family default menu, you'll see that most of the allowed environments are the same. However, you can now use the \family sans Chapter \family default environment. If you're ever unsure about which environments you can use in a given text class, just consult the \family sans Environment \family default menu. \end_layout \begin_layout Standard Font sizes, one- or two-column printing, and page headings are just some of the ways journals' typesettings differ from one another. As the Computer Age continues to mature, journals have begun accepting electronic submissions, creating LaTeX \begin_inset Quotes eld \end_inset style files \begin_inset Quotes erd \end_inset so that authors can submit correctly typeset articles. LyX is set up to support this as well. For example, LyX supports typesetting (and extra environments) for the American Mathematics Society journals using the \family sans Article\InsetSpace ~ (AMS) \family default text class. \end_layout \begin_layout Standard Here's a very quick reference to some of the text classes. See the \emph on Special Document Classes \emph default section of the \emph on Extended Features \emph default manual for many more details. \end_layout \begin_layout Standard \align center \begin_inset Tabular \begin_inset Text \begin_layout Standard Name \end_layout \end_inset \begin_inset Text \begin_layout Standard Notes \end_layout \end_inset \begin_inset Text \begin_layout Standard article \end_layout \end_inset \begin_inset Text \begin_layout Standard one-sided, no chapters \end_layout \end_inset \begin_inset Text \begin_layout Standard article (AMS) \end_layout \end_inset \begin_inset Text \begin_layout Standard layout & environments for American Math Society \end_layout \end_inset \begin_inset Text \begin_layout Standard report \end_layout \end_inset \begin_inset Text \begin_layout Standard longer than article, two-sided \end_layout \end_inset \begin_inset Text \begin_layout Standard book \end_layout \end_inset \begin_inset Text \begin_layout Standard report + front and back matter \end_layout \end_inset \begin_inset Text \begin_layout Standard slides \end_layout \end_inset \begin_inset Text \begin_layout Standard transparencies (also including FoilTeX) \end_layout \end_inset \begin_inset Text \begin_layout Standard letter \end_layout \end_inset \begin_inset Text \begin_layout Standard lots of extra environments for address, signature\SpecialChar \ldots{} \end_layout \end_inset \end_inset \end_layout \begin_layout Section Templates: Writing a Letter \end_layout \begin_layout Standard One of the most popular text classes is \family sans Letter \family default \SpecialChar \@. One way to write a letter would be to open a new \family sans \family default file, and choose \family sans Letter \family default class in the \family sans \bar under D \bar default ocument\SpecialChar \menuseparator \bar under S \bar default ettings \family default dialog. While this is the most obvious way to write a letter, it seems like extra work. Every time you write a business letter, you want to have your address, the address you're sending to, a body, a signature, etc. LyX therefore has a \emph on template \emph default for letters, which contains a sample letter; once you have a template, you can just replace a couple parts of the letter with your text each time you write a letter. \end_layout \begin_layout Standard Open a new file with \family sans \bar under F \bar default ile\SpecialChar \menuseparator New\InsetSpace ~ from\InsetSpace ~ \bar under T \bar default emplate \family default . Select \family typewriter letter.lyx \family default as the template. Save and print the file to see how the various environments are typeset. \end_layout \begin_layout Standard When you look at the \family sans Environment \family default menu, you'll see several environments, like the \family sans My\InsetSpace ~ Address \family default environment, which don't even exist in most other text classes. Others, like \family sans Quote \family default and \family sans Description \family default , are familiar. You can play around for a while to figure out how the various environments work. You'll notice for example that the \family sans Signature \family default environment has the word \begin_inset Quotes eld \end_inset Signature: \begin_inset Quotes eld \end_inset in red before the actual text of the signature. This word doesn't show up in the actual letter, as you'll see if you try printing the file. It's just there to let you know where the signature goes. Also, note that it doesn't matter where in the file the \family sans Signature \family default line is placed. Remember, LyX is WYSIWYM; you can put the \family sans Signature \family default environment anywhere you want, but LyX knows that in the printout, the signature should be at the end. \end_layout \begin_layout Standard A template is just a regular LyX file. This means you can fill in your address and signature and save the file as a new template. From now on, any time you want to write a letter, you can use the new template to save time. We probably don't have to suggest an actual \begin_inset Quotes eld \end_inset exercise \begin_inset Quotes erd \end_inset here; just write a letter to someone! \begin_inset Foot status collapsed \begin_layout Standard One warning, if you're writing from a template. If you erase all of the text in an environment --- for example, if you erase the whole \family sans My\InsetSpace ~ Address \family default field so that you can replace it with your own --- and then you move the cursor without writing any text, the environment may disappear. This is because most environments cannot exist without any text in them. Just reselect the environment from the \family sans Environment \family default menu to get it back. \end_layout \end_inset \end_layout \begin_layout Standard Templates can be a huge time-saver, and we urge you to use them whenever possible. In addition, they can help a person learn how to use some of the fancier text classes. Finally, they may be useful for a person who is configuring LyX for a bunch of less computer-aware users. When they're first learning LyX, it will be much less intimidating if they have a letter template customized for their company, for example. \end_layout \begin_layout Section Document Titles \end_layout \begin_layout Standard LyX (like LaTeX) considers the title --- which may contain the actual title, the author, the date, and even an abstract of a paper --- to be a separate part of the document. \end_layout \begin_layout Standard Go back to your \family typewriter newfile.lyx \family default document and make sure it's using the \family sans Article \family default text class. \begin_inset Foot status collapsed \begin_layout Standard You should not be using the letter any more, since the \family sans Letter \family default textclass doesn't allow titles. \end_layout \end_inset Type a title on the first line, and change the line to the \family sans Title \family default environment. On the next line, type your name and change it to the \family sans Author \family default environment. On the next line, write the date in the \family sans Date \family default environment. Type a paragraph or two summarizing your document using the \family sans Abstract \family default environment. Now see how it looks when printed. \end_layout \begin_layout Standard \series bold Exercise \series default : Fix the title, date, and author in \family typewriter example_raw.lyx \end_layout \begin_layout Section Labels and Cross-References \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:labels} \end_inset You can label a section (or subsubsection, or, more rarely, just a random piece of text) in your document. Once you do so, you can refer to this section in other parts of the document, using cross-references. You can refer either to the section's number, or to the page that the section appears on. As with sections and footnotes, LyX worries about the cross-references for you. Automatic labels and cross-references are one of the best advantages of LyX (and LaTeX) over conventional word processors. \end_layout \begin_layout Subsection* Your first label \end_layout \begin_layout Standard Let's mark our second section, whose title is \begin_inset Quotes eld \end_inset About This Document \begin_inset Quotes erd \end_inset . Click at the end of the section title line, and select \family sans \bar under I \bar default nsert\SpecialChar \menuseparator \bar under L \bar default abel \family default . A dialog asks you for a label name, and gives you a suggestion. When you click on \family sans OK \family default , the label name will be placed in a box next to the section title. \end_layout \begin_layout Standard By the way, you could have put the label right anywhere within the section as well; section references will refer to the last section or subsection whose heading comes before the label. However, putting it on the same line as the section title (or, perhaps, on the first line of the section's text) ensures that page references will reference the beginning of the section. \end_layout \begin_layout Standard So far you haven't done anything --- the \family typewriter dvi \family default file will look exactly the same, since labels don't show up in the printed document. However, now that you've added a label, you can refer to that label with cross-references. We'll do that next. \end_layout \begin_layout Subsection* Your first cross-references \end_layout \begin_layout Standard Place the cursor somewhere in Section\InsetSpace ~ 2 of your document. Type \end_layout \begin_layout LyX-Code If you want to know more about this document, then see \newline Section , which can be found on page . \end_layout \begin_layout Standard Now --- with the cursor after the word \begin_inset Quotes eld \end_inset section \begin_inset Quotes erd \end_inset \family typewriter \family default --- choose \family sans \bar under I \bar default nsert\SpecialChar \menuseparator Cross\InsetSpace ~ \bar under R \bar default eference \family default . The \family sans Reference \family default dialog pops up. It shows a list of the possible labels you can reference. At the moment, there should be only one, \begin_inset Quotes eld \end_inset sec:aboutdocument \begin_inset Quotes erd \end_inset . Select it (it may be selected by default), and click \family sans Apply \family default . Now put the cursor after the word \begin_inset Quotes eld \end_inset page \begin_inset Quotes erd \end_inset , and change the reference type to use the page number then click \family sans Apply \family default . (To be really correct, you should put a \family sans Protected\InsetSpace ~ Blank \family default in between the word \begin_inset Quotes eld \end_inset Section \begin_inset Quotes erd \end_inset and the reference. Same for the page reference.) \end_layout \begin_layout Standard LyX puts the references in a box right where the cursor was. In the printed document, this reference marker will be replaced with either the page or section number (depending on what you selected in the \family sans Reference \family default dialog). Use \family sans \bar under V \bar default iew\SpecialChar \menuseparator \bar under U \bar default pdate\SpecialChar \menuseparator \bar under D \bar default VI \family default , and you'll see that on the last page we refer to \begin_inset Quotes eld \end_inset Section\InsetSpace ~ 2 \begin_inset Quotes erd \end_inset and \begin_inset Quotes eld \end_inset Page\InsetSpace ~ 1 \begin_inset Quotes erd \end_inset (or whatever page Section\InsetSpace ~ 2's title is on). \end_layout \begin_layout Standard Conveniently, a cross-reference acts a hyperlink when you're editing a document in LyX; clicking on it will pop up the \family sans Reference \family default dialog, clicking \family sans Go\InsetSpace ~ to\InsetSpace ~ Label \family default will move the cursor to the referenced label. \end_layout \begin_layout Subsection* More fun with labels \end_layout \begin_layout Standard We told you that LyX worries about numbering cross-references; now you can test that. Add a new section before Section\InsetSpace ~ 2. Now rerun LaTeX, and --- voilà! --- the section cross reference changed to \begin_inset Quotes eld \end_inset 3 \begin_inset Quotes erd \end_inset ! Change \begin_inset Quotes eld \end_inset About this Document \begin_inset Quotes erd \end_inset to a subsection, and the cross-reference will reference Subsection\InsetSpace ~ 2.1 instead of Section\InsetSpace ~ 3. The page reference won't change unless you add a whole page of text before the label, of course. \end_layout \begin_layout Standard If you want some more practice with labels, then try putting a new label where your first cross-reference was, and refer to that label from elsewhere in the document. If you'll be inserting cross-references often (if, for example, you're writing a journal article), it may be convenient to leave the \family sans Reference \family default dialog open. \end_layout \begin_layout Standard If you want to make sure that the cross-referencing gets the pages right even for larger documents, \family sans Copy \family default a couple pages of text from the \emph on User's Guide \emph default to the clipboard, and \family sans Paste \family default the stolen text into your document \begin_inset Foot status collapsed \begin_layout Standard By the way, copying a chapter title may cause an error, because chapters aren't allowed in the article class. If this happens, just delete the chapter title. If you want to know why this happens, see Section\InsetSpace ~ \begin_inset LatexCommand \ref{sec:textclasses} \end_inset . \end_layout \end_inset . \end_layout \begin_layout Standard \series bold Exercise \series default : Fix the references in \family typewriter example_raw.lyx \end_layout \begin_layout Section Footnotes and Margin Notes \end_layout \begin_layout Standard Footnotes can be added using the \family sans Insert\InsetSpace ~ Footnote \family default button in the toolbar \begin_inset Foot status collapsed \begin_layout Standard The button shows an arrow pointing to red text, which is just below some black text. \end_layout \end_inset or \family sans \bar under I \bar default nsert\SpecialChar \menuseparator \bar under F \bar default ootnote \family default \SpecialChar \@. Click at the end of the word \begin_inset Quotes eld \end_inset LyX \begin_inset Quotes erd \end_inset somewhere in your document and hit the \family sans Insert\InsetSpace ~ Footnote \family default button. A footnote box appears where you can enter the text of the footnote. LyX should place the cursor at the beginning of the footnote box. Type \end_layout \begin_layout LyX-Code LyX is a typesetting word processor. \end_layout \begin_layout Standard Now click on the button labelled \begin_inset Quotes eld \end_inset foot. \begin_inset Quotes erd \end_inset The footnote box disappears, leaving the button showing where the footnote marker will be in the printed text; this is called \begin_inset Quotes eld \end_inset folding \begin_inset Quotes erd \end_inset the footnote. You can unfold the footnote at any time --- and re-edit its text, if you want --- by clicking again on the \begin_inset Quotes eld \end_inset foot \begin_inset Quotes erd \end_inset button. \end_layout \begin_layout Standard You may wonder why the footnote button is a word instead of a number. The answer is that LyX worries about the footnote numbering for you in the printed text. You can see this yourself by looking at the \family typewriter dvi \family default file (or printout). If you add other footnotes, LyX will renumber the footnotes. Since LyX (well, LaTeX, actually) takes care of the footnote numbering, there's really no need to put the numbers in the LyX file. \end_layout \begin_layout Standard A footnote can be cut and pasted like normal text. Go ahead; try it! All you need to do is select the footnote button \begin_inset Foot status collapsed \begin_layout Standard It may be easier to select it using the keyboard. You might accidentally open the footnote if you're trying to select the marker itself with the mouse. \end_layout \end_inset and \family sans Cut \family default and \family sans Paste \family default it. In addition, you can change regular text to a footnote, by selecting it and hitting the \family sans Insert\InsetSpace ~ Footnote \family default button; change a footnote to regular text by clicking the \family sans Insert\InsetSpace ~ Footnote \family default button when the cursor is in a footnote. \end_layout \begin_layout Standard Margin notes can be added using the toolbar button (the button shows an arrow pointing to red text next to (i.e., in the margin of) black text, and should be next to the \family sans Insert\InsetSpace ~ Footnote \family default button in the toolbar.) or \family sans \bar under I \bar default nsert\SpecialChar \menuseparator \bar under M \bar default arginal\InsetSpace ~ Note \family default \SpecialChar \@. Margin notes are like footnotes, except that: \end_layout \begin_layout Itemize the on-screen boxes say \begin_inset Quotes eld \end_inset margin \begin_inset Quotes erd \end_inset instead of \begin_inset Quotes eld \end_inset foot \begin_inset Quotes erd \end_inset \end_layout \begin_layout Itemize the notes will be placed in the margin, instead of below the text \end_layout \begin_layout Itemize margin notes are not numbered \end_layout \begin_layout Standard Change your LyX footnote back to text, then select and change it to a margin note. Run LaTeX again to see what the margin note looks like. \end_layout \begin_layout Standard \series bold Exercise \series default : Fix the footnote in \family typewriter example_raw.lyx \end_layout \begin_layout Section Bibliographies \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:bibliographies} \end_inset Bibliographies (at least in the exact sciences) are similar to cross references. The bibliography contains a list of references at the end of the document, and they can be referenced from within the document. Like section titles, LyX and LaTeX make your job easier by automatically numbering the bibliography items and changing citations when the items' numbers change. \end_layout \begin_layout Standard Go to the end of the document and switch to the \family sans Bibliography \family default environment. Now, each paragraph you type will be a reference. Type \family typewriter The Lyx Tutorial, by the LyX Documentation Team \family default as your first reference. Note that LyX automatically puts a number in a box before each reference. Click on the boxed reference number, and a \family sans Bibliography\InsetSpace ~ item \family default dialog box appears. You use the first field, the \family sans Key \family default , to refer to this reference within the LyX document. By default, it is a number. Change the \family sans Key \family default field to \begin_inset Quotes eld \end_inset lyxtutorial \begin_inset Quotes erd \end_inset to make it easy to remember. \end_layout \begin_layout Standard Now pick somewhere in your document that you would like to insert a reference. Do so with \family sans \bar under I \bar default nsert\SpecialChar \menuseparator \bar under C \bar default itation \family default . A \family sans Citation \family default dialog appears. The right panel in this dialog lists all the bibliography entries, and this field allows you to choose which bibliography item you want to cite. Select \begin_inset Quotes eld \end_inset lyxtutorial \begin_inset Quotes erd \end_inset (right now, that's the only item in the bibliography), then use the left arrow in the center to insert it. (You can have multiple citations in the same place by transferring a number of keys this way.) Now run LaTeX, and you'll see that the citation appears in brackets in the text, referring to the bibliography at the end of the document. \end_layout \begin_layout Standard How are the other fields used? The \family sans \bar under T \bar default ext\InsetSpace ~ after \family default field in the \family sans Citation \family default dialog will put a remark (such as a reference to a page or chapter within the referenced book or article) in the brackets after the reference. If you want the references to have labels instead of numbers in the printed output (for example, some journals would use \begin_inset Quotes eld \end_inset [Smi95] \begin_inset Quotes erd \end_inset to refer to a paper written by Smith in 1995), use the \family sans \bar under L \bar default abel \family default field in the \family sans Bibliography\InsetSpace ~ Entry\InsetSpace ~ Settings \family default dialog. As usual, you can see the \emph on User's Guide \emph default for details. \end_layout \begin_layout Standard \series bold Exercise: \series default Fix the bibliography and citation in \family typewriter example_raw.lyx \end_layout \begin_layout Section Table of Contents \end_layout \begin_layout Standard You may want to put a table of contents at the beginning of your document. LyX makes this very easy to do. Just hit \family sans Return \family default after your document title and before your first section title and choose \family sans \bar under I \bar default nsert\SpecialChar \menuseparator List\InsetSpace ~ /\InsetSpace ~ T \bar under O \bar default C\SpecialChar \menuseparator Table\InsetSpace ~ of\InsetSpace ~ \bar under C \bar default ontents \family default . The words \begin_inset Quotes eld \end_inset Table of Contents \begin_inset Quotes erd \end_inset will appear in a button on the first line of the document. \end_layout \begin_layout Standard This may not appear to be very useful. However, if you look at your \family typewriter dvi \family default file, you will see that a table of contents has been generated, listing the various sections and subsections in your document. As usual, if you reorder sections or create new ones, you will see those changes in the \family typewriter dvi \family default file when you update it. \end_layout \begin_layout Standard The table of contents is not printed in the on-screen version of the document, because you can't edit it anyway. However, you can display the table of contents in a separate window by clicking on the table of contents button, or by using \family sans \bar under D \bar default ocument\SpecialChar \menuseparator \bar under T \bar default able\InsetSpace ~ of\InsetSpace ~ Contents \family default . The menu command will work even if you don't have a table of contents inset in your document. This is a very useful tool. You can use the \family sans Table\InsetSpace ~ of\InsetSpace ~ Contents \family default window to move around your document. Clicking on a (sub)section title in the \family sans Table\InsetSpace ~ of\InsetSpace ~ Contents \family default window will highlight that line and move the cursor (in the LyX editing window) to that place in the document. You can also use the arrow keys to move up and down in the table of contents. You may therefore find it convenient to leave this window open throughout editing sessions. You can get similar functionality from the \family sans \bar under N \bar default avigate \family default menu, though, where the table of contents appears automatically. \end_layout \begin_layout Standard To get rid of the Table of Contents, you can delete the table of contents button just like any other text. \end_layout \begin_layout Standard \series bold Exercise \series default : Fix the table of contents in \family typewriter example_raw.lyx \end_layout \begin_layout Chapter Using Math \end_layout \begin_layout Standard LaTeX is used by many scientists because it outputs great looking equations, avoiding the control characters used by word processors and their equation editors. Many of these scientists are frustrated, however, because writing equations in LaTeX is more like programming than writing. Happily, LyX has WYSIWYM support for equations. If you are used to LaTeX, you'll find that all of the usual LaTeX math commands can be typed in normally, but they will show up in a WYSIWYM fashion. If, on the other hand, you've never written in LaTeX, then the \family sans Math\InsetSpace ~ Panel \family default will allow you to write professional-looking math quickly and easily \begin_inset Foot status collapsed \begin_layout Standard LyX can't check if the math you're writing is actually \emph on correct \emph default . Sorry. \end_layout \end_inset . \end_layout \begin_layout Section Math Mode \end_layout \begin_layout Standard Somewhere in your LyX document, type: \end_layout \begin_layout LyX-Code I like what Einstein said, E=mc^2, because it's so simple. \end_layout \begin_layout Standard Now, that equation doesn't look very good, even in the \family typewriter dvi \family default file; there's no space between the letters and the equals sign, and you'd like to write an actual superscript for the \begin_inset Quotes eld \end_inset 2 \begin_inset Quotes erd \end_inset . That bad typesetting happened because we didn't tell LyX that we were writing a mathematical expression, so it typeset the equation like regular old text. \end_layout \begin_layout Standard Instead, we create a formula that will get typeset properly. In order to create a formula, just click the toolbar button with \begin_inset Formula $\frac{a+b}{c}$ \end_inset written on it in blue. LyX will insert a little blue square, which is an empty math formula. LyX has placed the cursor in the blue square, so just type \family typewriter E=mc^2 \family default again. The expression is typed in blue, and the blue square disappears as soon as the formula is not empty. Now type \family sans Esc \family default to leave the equation The purple markers disappear, leaving the cursor to the right of the expression, and now if you type something, it will be regular text. \end_layout \begin_layout Standard Run LaTeX and look at the \family typewriter dvi \family default file. Notice that the expression was typeset nicely, with spaces between the letters and the equals sign, and a superscript \begin_inset Quotes eld \end_inset 2 \begin_inset Quotes erd \end_inset . Letters in math mode are assumed to be variables, and come out in italics. Numbers are just numbers. \end_layout \begin_layout Standard This math editor is another example of the WYSIWYM philosophy. In LaTeX, you write a mathematical expression using text and commands like \family typewriter \backslash sqrt \family default ; this can be frustrating, because you can't see what an expression looks like until you LaTeX the file, and may have to spend time to find missing brackets or other \begin_inset Quotes eld \end_inset bugs \begin_inset Quotes erd \end_inset . On the other hand, LyX doesn't attempt to get the expression to look perfect (WYSIWYG), but it gives you an extremely good idea of what the expression will look like. LaTeX then takes care of the professional typesetting. 99% of the time, you won't have to make any changes to the font sizes or spacing that LaTeX outputs. This way (sorry to be so repetitive) you can focus on the \emph on content \emph default of your mathematical expressions, not their format. \end_layout \begin_layout Section Navigating an Equation \end_layout \begin_layout Standard Now let's change \begin_inset Formula $E=mc^{2}$ \end_inset to \begin_inset Formula $E=1+mc^{2}$ \end_inset . Use the arrow keys to move the cursor into the expression. Note that when you enter the expression, the purple markers appear to let you know you're editing math. Now you can use \family sans Left \family default and \family sans Right \family default to move the cursor past the equals sign, and just type \begin_inset Quotes eld \end_inset 1+ \begin_inset Quotes erd \end_inset . Again, you can use the arrow keys or \family sans Esc \family default to leave the formula\SpecialChar \@. \end_layout \begin_layout Standard Other than the special keys described below, typing in math mode is like editing regular text. Use \family sans Delete \family default (or \family sans Backspace \family default ) to delete things. Select text either with the arrow keys or with the mouse. \family sans \bar under E \bar default dit\SpecialChar \menuseparator \bar under U \bar default ndo \family default works in math mode, as does cutting and pasting. One thing to be careful of: if you're right outside a formula and you type \family sans Delete \family default (or \family sans Backspace \family default ), it will delete the whole expression. Luckily, you can just use \family sans Undo \family default to get it back. \end_layout \begin_layout Standard What if you want to change \begin_inset Formula $E=mc^{2}$ \end_inset to \begin_inset Formula $E=mc^{2.5}+1$ \end_inset ? Again, you can use the mouse to click in the right place. However, you can also use the arrow keys. If the cursor is just after the \begin_inset Quotes eld \end_inset c \begin_inset Quotes erd \end_inset but before the \begin_inset Quotes eld \end_inset 2 \begin_inset Quotes erd \end_inset , then typing \family sans Up \family default will move the cursor to the level of the superscript, just before the \begin_inset Quotes eld \end_inset 2 \begin_inset Quotes erd \end_inset . Add the \begin_inset Quotes eld \end_inset .5 \begin_inset Quotes erd \end_inset . Now, hitting \family sans Down \family default will move the cursor back to the regular level. In fact, if you hit \family sans Down \family default from anywhere within the superscript, the cursor will be placed just \emph on after \emph default the superscript (so that you can then type the \begin_inset Quotes eld \end_inset +1 \begin_inset Quotes erd \end_inset ). \end_layout \begin_layout Section Exponents and Indices \end_layout \begin_layout Standard An exponent can be entered from the \family sans Math\InsetSpace ~ Panel \family default (see below), but it's actually simpler just to type the caret key, \begin_inset Quotes eld \end_inset ^ \begin_inset Quotes erd \end_inset . LyX will place another blue rectangle in the superscript, so that whatever you write next will be superscripted, and in a smaller font size. Everything you type until you hit a \family sans Space \family default (or \family sans Esc \family default to exit Mathed entirely) will be in the superscript. \end_layout \begin_layout Standard Writing a subscript (index) is just as easy --- start one by typing the underscore key, \begin_inset Quotes eld \end_inset _ \begin_inset Quotes eld \end_inset . You can subscript and superscript both subscripts and superscripts like this: \begin_inset Formula $A_{a_{0}+b^{2}}+C^{a_{0}+b^{2}}$ \end_inset . \end_layout \begin_layout Standard \series bold Exercise \series default : Put equation 1 of \family typewriter example_raw.lyx \family default into math mode. \end_layout \begin_layout Section The \family sans Math Panel \end_layout \begin_layout Standard The \family sans Math\InsetSpace ~ Panel \family default is a convenient way to enter symbols or to perform many complicated Mathed functions. Many of these functions can be accomplished from the keyboard or the \family sans \bar under E \bar default dit\SpecialChar \menuseparator \bar under M \bar default ath \family default or \family sans \bar under I \bar default nsert \bar under \SpecialChar \menuseparator \bar default Mat \bar under h \family default \bar default menus. However, we're going to concentrate on using the \family sans Math\InsetSpace ~ Panel \family default , just to let you know what's out there; you can learn keyboard shortcuts later, from other manuals. So open it using \family sans \bar under I \bar default nsert \bar under \SpecialChar \menuseparator \bar default Mat \bar under h \bar default \SpecialChar \menuseparator Math\InsetSpace ~ Pane \bar under l \family default \bar default now and leave it open while reading this section. \end_layout \begin_layout Standard Right-clicking on a formula will open the \family sans Math Panel \family default for you. \end_layout \begin_layout Subsection Greek and symbols \end_layout \begin_layout Standard The \family sans Math\InsetSpace ~ Panel \family default which allow you to choose from a large array of symbols used in math: various arrows, relations, operators, and sums and integrals. Note that subscripting and superscripting allow you to put lower and upper limits on sums and integrals. \end_layout \begin_layout Standard \begin_inset Quotes eld \end_inset Nothing you can do that can't be done\SpecialChar \ldots{} All you need is \begin_inset Formula $\heartsuit$ \end_inset . \begin_inset Quotes erd \end_inset \end_layout \begin_layout Subsection Square roots, accents, and delimiters \end_layout \begin_layout Standard To type a square root, just click on the button with a square root sign on it. The square root appears, and the cursor is in a new insertion point inside the square root. You can type variables, numbers, other square roots, fractions, whatever you want. LyX will automatically resize the square root to fit what's inside. \end_layout \begin_layout Standard Accenting a character ( \begin_inset Formula $\overrightarrow{v}$ \end_inset ) or group of characters ( \begin_inset Formula $\overrightarrow{a+b}$ \end_inset ) is done the same way. The \family sans Decoration \family default types are available from the panel. Click on a decoration, and LyX will insert that decoration with an insertion point under (or over) it. Just type what you want in the insertion point. There are two sets of decorations: those that resize with the text you type, and those that have fixed size, and are most appropriate for a single letter. \end_layout \begin_layout Standard Delimiters such as parentheses, brackets, and braces work similarly, but are a bit more complicated. Hit the \family sans Delimiter \family default button, which features a blue square surrounded by brackets, to pop up the \family sans Delimiter \family default dialog. Your current selection of delimiters is displayed in a box. It's a pair of parentheses by default, but you can choose a pair of braces, a brace and a parenthesis, or even choose the empty square to have something like \begin_inset Quotes eld \end_inset \begin_inset Formula $a=\left\langle 7\right.$ \end_inset \begin_inset Quotes erd \end_inset (the empty delimiter is displayed as a broken line in LyX, but won't show up in the output). \end_layout \begin_layout Standard If you're lazy, you can type actual parentheses in math mode, rather than using the \family sans Delimiter \family default window. However, those parentheses will be the same size as regular text, which will look bad if you have a big fraction or matrix inside the parentheses. Using the \family sans Delimiter \family default window will guarantee that the delimiters are sized based on what's inside them. \end_layout \begin_layout Standard You can also put delimiters or a square root sign or a decoration on already existing text. Select the portion of the formula that you want to adjust, and then click on the button you want from the \family sans Math\InsetSpace ~ Panel \family default . Try using this to change Newton's second law from scalar to vector form ( \begin_inset Formula $f=ma$ \end_inset to \begin_inset Formula $\overrightarrow{f}=m\overrightarrow{a}$ \end_inset ). Once you've learned about matrices, this is how you'll put parentheses or brackets around them. \end_layout \begin_layout Subsection Fractions \end_layout \begin_layout Standard Fractions are very simple in Mathed. Just click on the \family sans Fraction \family default button in the \family sans Math\InsetSpace ~ Panel \family default , which shows a fraction with blue squares in the numerator and the denominator. LyX writes two insertion points in a fraction. As you would expect, you can use arrow keys or the mouse to move around a fraction. Click on the top square and type \begin_inset Quotes eld \end_inset 1 \begin_inset Quotes erd \end_inset . Now hit \family sans Down \family default and type \begin_inset Quotes eld \end_inset 2 \begin_inset Quotes erd \end_inset . You've made a fraction! Of course you can type anything within each of the two boxes: variables with exponents, square roots, other fractions, whatever. \end_layout \begin_layout Standard \series bold Exercise \series default : Put equation 2 of \family typewriter example_raw.lyx \family default into math mode. \end_layout \begin_layout Subsection TeX mode: Limits, log, sin and others \end_layout \begin_layout Standard Because letters in math mode are considered to be variables, if you type \begin_inset Quotes eld \end_inset sin \begin_inset Quotes erd \end_inset in math mode, LyX thinks you're typing the product of the three variables \begin_inset Formula $s$ \end_inset , \begin_inset Formula $i$ \end_inset , and \begin_inset Formula $n$ \end_inset . The three letters will be typeset in italics, when what you really wanted was the word \begin_inset Quotes eld \end_inset sin \begin_inset Quotes erd \end_inset typeset in Roman. In addition, LyX won't put a space between the word \begin_inset Quotes eld \end_inset sin \begin_inset Quotes erd \end_inset and the \begin_inset Quotes eld \end_inset x \begin_inset Quotes erd \end_inset (typing \family sans Space \family default will just exit math mode). So how do you get \begin_inset Quotes eld \end_inset \begin_inset Formula $\sin x$ \end_inset \begin_inset Quotes erd \end_inset instead of \begin_inset Quotes eld \end_inset \begin_inset Formula $sinx$ \end_inset \begin_inset Quotes erd \end_inset ? \end_layout \begin_layout Standard Click on \begin_inset Quotes eld \end_inset sin \begin_inset Quotes erd \end_inset in the \family sans Functions \family default list in the \family sans Math\InsetSpace ~ Panel \family default . The word \begin_inset Quotes eld \end_inset sin \begin_inset Quotes erd \end_inset is written in black, in upright roman type. The whole word is treated as one symbol, so if you type \family sans Backspace \family default , it will delete the whole word. Now type \begin_inset Quotes eld \end_inset x \begin_inset Quotes erd \end_inset , which will be written in blue italics, like you expect in Mathed. In the \family typewriter dvi \family default file, the expression will be correctly typeset. Try it. \end_layout \begin_layout Standard Other commands you need to type in TeX mode using the \family sans Functions \family default box include other trigonometric functions and their inverses, hyperbolic functions, logarithms, limits, and quite a few others. These functions can take subscripts and superscripts, important for typing \begin_inset Quotes eld \end_inset \begin_inset Formula $\cos^{2}\theta$ \end_inset \begin_inset Quotes erd \end_inset or \begin_inset Quotes eld \end_inset \begin_inset Formula $\lim_{n\rightarrow\infty}$ \end_inset \begin_inset Quotes erd \end_inset . \end_layout \begin_layout Standard \series bold Exercise \series default : Put equation 3 of \family typewriter example_raw.lyx \family default into math mode. \end_layout \begin_layout Subsection Matrices \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:matrices} \end_inset Click on the \family sans Matrix \family default button in the \family sans Math\InsetSpace ~ Panel \family default . The dialog has two sliding bars which allow you to choose how many rows and columns you want in your matrix. Choose 2 rows and 3 columns and hit \family sans Apply \family default or \family sans OK \family default . LyX prints 6 insertion points in a \begin_inset Formula $2\times3$ \end_inset matrix. As usual, you can put any sort of Mathed expression (a square root, another matrix, etc.) in each insertion point. You can also leave some of the insertion points empty if you want. \end_layout \begin_layout Standard \family sans Tab \family default can be used to move horizontally between the columns of a matrix. Alternatively, you can use the arrow keys to move around - hitting \family sans Right \family default at the end of one box will move to the next box, \family sans Down \family default will move to the next row, etc. \end_layout \begin_layout Standard If you suddenly need more rows or columns, use \family sans \bar under E \bar default dit\SpecialChar \menuseparator \bar under M \bar default ath\SpecialChar \menuseparator Add\InsetSpace ~ \bar under R \bar default ow \family default and \family sans Add\InsetSpace ~ \bar under C \bar default olumn \family default . They add a row or column just after the current position. Overdid it? Use \family sans \bar under D \bar default elete\InsetSpace ~ Row \family default and \family sans D \bar under e \bar default lete\InsetSpace ~ Column \family default from the same menu. \end_layout \begin_layout Standard See the \emph on User's Guide \emph default for information on how to change the horizontal alignment of each column, and how to change the vertical position of the whole matrix. Note that if you want to write a table containing text, you should use LyX' wonderful table support, rather than trying to write text in a matrix. \end_layout \begin_layout Subsection Display mode \end_layout \begin_layout Standard All of the expressions we have written so far have been on the same line as the text that came before and after them, otherwise known as inline expressions. This is fine for short, simple expressions, but if you want to write larger ones, or if you want your expressions to stand out from the text, you need to write them in display mode. In addition, only displayed expressions can be labeled and numbered (see the \emph on User's Guide \emph default ), and multi-line equations (see Sec. \begin_inset LatexCommand \ref{sec:multiline} \end_inset ) must be in display mode. \end_layout \begin_layout Standard Click on the \family sans Display \family default button in the \family sans Math\InsetSpace ~ Panel \family default , which represents a couple lines of text before and after a centered blue box. LyX inserts a formula, but the insertion point is on a new line, and it's centered within that line. Now type an expression and run LaTeX to see how it looks. The \family sans Display \family default button is actually a toggle; use it now to change a couple of your expressions to display mode and back. \end_layout \begin_layout Standard Display mode has a couple differences from inline mode: \end_layout \begin_layout Itemize The default font is larger for a few symbols, like \begin_inset Formula $\sum$ \end_inset and \begin_inset Formula $\int$ \end_inset \end_layout \begin_layout Itemize Subscripts and superscripts for limits and sums (but not integrals) are written under rather than next to the symbols \end_layout \begin_layout Itemize Text is centered \end_layout \begin_layout Standard Other than these differences, though, displayed expressions and inline expressio ns are very similar. \end_layout \begin_layout Standard One final note about the way displayed formulae are typeset: be careful about whether you're putting your equation into a new paragraph or not. If your formula is in the middle of a sentence or paragraph, then don't press \family sans Return \family default . Doing so will cause the text \emph on after \emph default the formula to start a new paragraph. That text will therefore be indented, which is probably not what you want. \end_layout \begin_layout Standard \series bold Exercise \series default : Put the various equations in \family typewriter example_raw.lyx \family default into display mode, and see how they're typeset differently. \end_layout \begin_layout Standard \series bold Exercise \series default : Using various tools you've learned in this section, you should be able to write an equation like \begin_inset Foot status collapsed \begin_layout Standard After you've done it the hard way, why don't you give \family sans \bar under I \bar default nsert\SpecialChar \menuseparator Mat \bar under h \bar default \SpecialChar \menuseparator \bar under C \bar default ases\InsetSpace ~ environment \family default a try? \end_layout \end_inset : \begin_inset Formula \[ f(x)=\left\{ \begin{array}{cc} \log_{8}x & x>0\\ 0 & x=0\\ \sum_{i=1}^{5}\alpha_{i}+\sqrt{-\frac{1}{x}} & x<0\end{array}\right.\] \end_inset \end_layout \begin_layout Section More Math Stuff \end_layout \begin_layout Standard Mathed can do plenty more. By now, you're familiar with the basics, so we'll just refer to the \emph on User's Guide \emph default for tips on how to: \end_layout \begin_layout Itemize Labeling and numbering expressions \end_layout \begin_layout Itemize Multi-line equations \end_layout \begin_layout Itemize Change typefaces, e.g., to write bold-face text in an expression. \end_layout \begin_layout Itemize Fine-tune font sizes and spacing within an expression. (Don't worry about this until your final draft!) \end_layout \begin_layout Itemize Write macros. These are very powerful, because you just define them once at the top of the document, and then you can use them throughout the document. If you change the macro definition, the references to the macro will be changed throughout the document. Macros can even take arguments. \end_layout \begin_layout Itemize Do lots of other things we didn't have time to mention in this \emph on Tutorial \emph default . \end_layout \begin_layout Chapter Miscellaneous \end_layout \begin_layout Section Other Major LyX Features \end_layout \begin_layout Standard We haven't gone through all the possible commands in LyX, and we aren't planning on it. As usual, see the \emph on User's Guide \emph default for more information. We'll just mention a couple more major things LyX can do\SpecialChar \ldots{} \end_layout \begin_layout Itemize LyX has WYSIWYM support for tables. Use the \family sans \bar under I \bar default nsert\SpecialChar \menuseparator \bar under T \bar default able \family default to get a table. Click on the table with the \emph on right button \emph default to get a \family sans Table\InsetSpace ~ Settings \family default dialog box which allows extensive table editing. \end_layout \begin_layout Itemize LyX also supports including pictures in a number of formats (including JPEG and other bitmap formats, PostScript® and raw LaTeX) within documents. (You guessed it: \family sans \bar under I \bar default nsert\SpecialChar \menuseparator \bar under G \bar default raphics \family default . Then click on the figure to choose the file to include, rotate or scale it, etc.) Tables and figures can have captions, and LyX will automatically generate lists of figures and/or tables. \end_layout \begin_layout Itemize Version control is supported, using RCS ( \family typewriter man rcsintro \family default for more info). \end_layout \begin_layout Itemize LyX is heavily configurable. Everything from how the LyX window looks to how the output comes out can be configured in a number of ways. Much configuration is done through \family sans \bar under T \bar default ools\SpecialChar \menuseparator \bar under P \bar default references \family default . For more information on this, check out \family sans \bar under H \bar default elp\SpecialChar \menuseparator \bar under C \bar default ustomization\SpecialChar \@. \end_layout \begin_layout Itemize LyX is being developed by a team of programmers on five continents. Therefore, LyX has better support for non-English languages (such as Dutch, German, French, Greek, Czech, Turkish, \SpecialChar \ldots{} ) than many word processors. Even some right-to-left languages like Hebrew or Arabic are supported. You can write documents in other languages, but you can also configure LyX to show its menus and error messages in other languages. \end_layout \begin_layout Itemize The LyX menus feature keybindings. This means that you can do \family sans \bar under F \bar default ile\SpecialChar \menuseparator \bar under O \bar default pen \family default by typing \family sans M-F \family default followed by \family sans O \family default or by using the binding which is shown next to it in the menu (C-O by default). Keybindings are also configurable. For information on this, check out \family sans \bar under H \bar default elp\SpecialChar \menuseparator \bar under C \bar default ustomization\SpecialChar \@. \end_layout \begin_layout Itemize LyX can read in LaTeX documents. See Section\InsetSpace ~ \begin_inset LatexCommand \ref{sec:relyx} \end_inset . \end_layout \begin_layout Itemize Spellchecking and thesaurus facilities are available. \end_layout \begin_layout Itemize The text box near the bottom of the LyX window is called the minibuffer (after a similar feature in \family typewriter emacs \family default ). This gives you access to all sorts of interesting functionality, including functionality which could break your document. In other words, don't type in the minibuffer unless you know what you're doing. \end_layout \begin_layout Section LyX for LaTeX Users \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:latexusers} \end_inset If you don't know anything about LaTeX, you don't have to read this section. Actually, you might want to \emph on learn \emph default about LaTeX, and then read this chapter. However, many people who begin to use LyX will be familiar with LaTeX. If you are such a person, you may be wondering if LyX can really do everything LaTeX can do. The short answer is that LyX can do pretty much everything LaTeX can do in one form or another, and it definitely simplifies most parts of writing a LaTeX document. The tool that is used to convert a LaTeX document to LyX was rewritten completely for LyX\InsetSpace ~ 1.4. It should now be able to handle most LaTeX gracefully. \end_layout \begin_layout Standard Because this is just a tutorial, we are only going to mention things that new LyX users will most likely be interested in. In the interests of keeping the \emph on Tutorial \emph default short, we will give only minimal information here. The \emph on Extended Features \emph default manual, specifically the \emph on Secrets of the LaTeX Masters \emph default chapter, has a great deal of information on differences between LyX and LaTeX, and how to do various LaTeX tricks in LyX. \end_layout \begin_layout Subsection TeX Mode \end_layout \begin_layout Standard Anything that you enter in TeX mode will be passed straight to LaTeX, and will be displayed in red on the screen. You can use TeX commands in LyX by choosing \family sans \bar under I \bar default nsert\SpecialChar \menuseparator Te \bar under X \bar default \InsetSpace ~ Code \family default . This creates a text box, and everything within it is passed straight to LaTeX. \end_layout \begin_layout Standard In a math formula, TeX mode is handled a bit differently. Enter TeX mode by typing a backslash. The backslash is not written out, but anything you type afterwards will be in red. You exit TeX mode by typing \family sans Space \family default or some other non-alphabetic character, like a number, underscore, caret, or parenthesis. Once you exit TeX mode, if LyX knows the TeX command you've typed in, it will convert it to WYSIWYM\SpecialChar \@. So if, in a formula, you type \family typewriter \backslash gamma \family default , then when you type \family sans Space \family default , LyX will change the red \begin_inset Quotes eld \end_inset gamma \begin_inset Quotes erd \end_inset to a blue \begin_inset Quotes eld \end_inset \begin_inset Formula $\gamma$ \end_inset \begin_inset Quotes erd \end_inset . This will work for almost all, non-complicated math macros. This may be faster than using the \family sans Math\InsetSpace ~ Panel \family default , and will be especially convenient for experienced LaTeX users. \end_layout \begin_layout Standard As a special case, if you type a brace in TeX mode, then the beginning \emph on and \emph default ending braces will be inserted in red, then take you \emph on out \emph default of TeX mode and place the cursor between the braces. This makes it more convenient to type commands that LyX doesn't know which take an argument. \end_layout \begin_layout Standard LyX can't do absolutely everything that LaTeX can do (yet?). Some fancy functions are not supported at all, while some work but aren't WYSIWYM. TeX mode allows users to get the full flexibility of LaTeX, while having all the convenient features of LyX, like WYSIWYM math, tables, and editing. LyX could never support every LaTeX package. However, by typing \family typewriter \backslash usepackage{foo} \family default in the preamble (see Section\InsetSpace ~ \begin_inset LatexCommand \ref{sec:preamble} \end_inset ), you can use any package you want --- although you won't have WYSIWYM support for that package's features. \end_layout \begin_layout Subsection Importing LaTeX Documents --- \family typewriter tex2lyx \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:relyx} \end_inset You can import a LaTeX file into LyX by using the \family sans \bar under F \bar default ile\SpecialChar \menuseparator \bar under I \bar default mport\SpecialChar \menuseparator \bar under L \bar default aTeX \family default command in LyX. This will call \family typewriter tex2lyx \family default which will create a file \family typewriter foo.lyx \family default from the file \family typewriter foo.tex \family default --- and then open that file. If the translation doesn't work, you can try calling \family typewriter tex2lyx \family default from the command line, possibly using fancier options. \end_layout \begin_layout Standard \family typewriter tex2lyx \family default will translate most legal LaTeX, but not everything. It will leave things it doesn't understand in TeX mode, so after translating a file with \family typewriter tex2lyx \family default , you can look for red text and hand-edit it to look right. \end_layout \begin_layout Standard \family typewriter tex2lyx \family default has its own manpage. Read it to find out about which LaTeX commands and environments aren't supported, bugs (and how to get around them), and how to use the various options. \end_layout \begin_layout Subsection Converting LyX Documents to LaTeX \end_layout \begin_layout Standard You might wish to convert a LyX Document to a LaTeX file. For example, a co-worker or co-author who doesn't have LyX might want to read it. This is very easy to do with LyX. Select \family sans \bar under F \bar default ile\SpecialChar \menuseparator \bar under E \bar default xport\SpecialChar \menuseparator \bar under L \bar default aTeX \family default . This will create a file \family typewriter whatever.tex \family default from the \family typewriter whatever.lyx \family default file you are editing. LyX always creates temporary LaTeX files when viewing or printing files, so it is very good at generating LaTeX. \end_layout \begin_layout Subsection LaTeX Preamble \end_layout \begin_layout Subsubsection Document Class \end_layout \begin_layout Standard The \family sans \bar under D \bar default ocument\SpecialChar \menuseparator \bar under S \bar default ettings \family default dialog takes care of many of the options that you would input in a \family typewriter \backslash documentclass \family default command. Change the class, default font size and paper size here. Put any extra options to the \family typewriter \backslash documentclass \family default command in the \family sans E \bar under x \bar default tra\InsetSpace ~ Options \family default area. \end_layout \begin_layout Subsubsection Other Preamble Matter \end_layout \begin_layout Standard \begin_inset LatexCommand \label{sec:preamble} \end_inset If you have special commands to put in the preamble of a LaTeX file, you can use them in a LyX document as well. Select \family sans \bar under D \bar default ocument\SpecialChar \menuseparator \bar under L \bar default aTeX\InsetSpace ~ \bar under P \bar default reamble \family default and type in the dialog window (or from the document settings dialog, depending on the frontend). Anything you type will (like with TeX mode) be sent directly to LaTeX. \end_layout \begin_layout Subsection BibTeX \end_layout \begin_layout Standard LyX has support for BibTeX, which allows you to build databases of bibliographic al references to be used in multiple documents. Select \family sans \bar under I \bar default nsert\SpecialChar \menuseparator List\InsetSpace ~ /\InsetSpace ~ T \bar under O \bar default C\SpecialChar \menuseparator \bar under B \bar default ibTeX\InsetSpace ~ Reference \family default to include a \family typewriter bib \family default file. Click on the resulting \begin_inset Quotes eld \end_inset BibTeX\InsetSpace ~ Generated\InsetSpace ~ References \begin_inset Quotes erd \end_inset button, and you will get a \family sans BibTeX \family default dialog. In the \family sans Database \family default field, type what you would type inside the braces of a \family typewriter \backslash bibliography{} \family default command \begin_inset Foot status collapsed \begin_layout Standard Like in regular LaTeX, multiple bibliographies should be separated by commas, with no whitespace. \end_layout \end_inset . Similarly, in the \family sans Style \family default field, type what you would type inside the braces of a \family typewriter \backslash bibliographystyle{} \family default command. \end_layout \begin_layout Standard After you've done this, you can use citations from any bibliographies you're including with \family sans \bar under I \bar default nsert\SpecialChar \menuseparator \bar under C \bar default itation \family default (see Section\InsetSpace ~ \begin_inset LatexCommand \ref{sec:bibliographies} \end_inset ). LyX will take care of running BibTeX. The box in the \family sans Citation \family default dialog will show a list of all the references in your \family typewriter bib \family default file. \end_layout \begin_layout Section Errors! \end_layout \begin_layout Standard Sometimes when you LaTeX a document, there will be errors, things that LyX or LaTeX can't understand. When this happens, LyX will open a \family sans LaTeX\InsetSpace ~ Errors \family default dialog. Clicking on individual errors in this dialog will take you to the place in the LyX document where the error occurs and also display the detailed LaTeX error message. \end_layout \end_body \end_document