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lyx_mirror/lib/doc/Formula-numbering.lyx

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#LyX 1.6.0beta3 created this file. For more info see http://www.lyx.org/
\lyxformat 335
\begin_document
\begin_header
\textclass scrartcl
\begin_preamble
\usepackage{ifpdf}
\ifpdf
\usepackage[colorlinks=true,
pdftitle=Formelnummerierung, pdfpagemode=none,
pdfpagelayout=OneColumn, pdfstartview=XYZ,
pdfauthor={Uwe Stöhr},
pdfsubject={LaTeX/LyX numbering example},
pdfkeywords={LaTeX, numbering, LyX}]{hyperref}
\else % if DVI
\usepackage[colorlinks=true, hypertex]{hyperref}
\fi
% define Roman counter
\newcounter{rom}
\renewcommand{\therom}{\roman{rom}}
% remember the original counter
\newcommand{\c@org@eq}{}
\let\c@org@eq\c@equation
\newcommand{\org@theeq}{}
\let\org@theeq\theequation
% \setrom activates the Roman counter
\newcommand{\setrom}{
\let\c@equation\c@rom
\let\theequation\therom}
% \setarab activates the original Arabic counter
\newcommand{\setarab}{
\let\c@equation\c@org@eq
\let\theequation\org@theeq}
\end_preamble
\options fleqn
\language english
\inputencoding auto
\font_roman default
\font_sans default
\font_typewriter default
\font_default_family default
\font_sc false
\font_osf false
\font_sf_scale 100
\font_tt_scale 100
\graphics default
\paperfontsize 12
\spacing single
\use_hyperref false
\papersize default
\use_geometry false
\use_amsmath 2
\use_esint 0
\cite_engine basic
\use_bibtopic false
\paperorientation portrait
\secnumdepth 4
\tocdepth 3
\paragraph_separation skip
\defskip medskip
\quotes_language english
\papercolumns 1
\papersides 1
\paperpagestyle empty
\tracking_changes false
\output_changes false
\author ""
\author ""
\end_header
\begin_body
\begin_layout Standard
This document demonstrates the usage of two different formula categories.
One is Arabic, one is Roman numbered.
\end_layout
\begin_layout Standard
\begin_inset Formula \begin{equation}
A=B\label{eq:B}\end{equation}
\end_inset
\begin_inset Formula \begin{equation}
A=C\label{eq:C}\end{equation}
\end_inset
\begin_inset ERT
status collapsed
\begin_layout Plain Layout
\backslash
setrom
\end_layout
\end_inset
\begin_inset Formula \begin{equation}
A=D\label{eq:D}\end{equation}
\end_inset
\begin_inset Formula \begin{equation}
A=E\label{eq:E}\end{equation}
\end_inset
\begin_inset ERT
status collapsed
\begin_layout Plain Layout
\backslash
setarab
\end_layout
\end_inset
\begin_inset Formula \begin{equation}
A=F\label{eq:F}\end{equation}
\end_inset
\begin_inset Formula \begin{equation}
A=G\label{eq:G}\end{equation}
\end_inset
\begin_inset ERT
status collapsed
\begin_layout Plain Layout
\backslash
setrom
\end_layout
\end_inset
\begin_inset Formula \begin{equation}
A=H\label{eq:H}\end{equation}
\end_inset
\begin_inset Formula \begin{equation}
A=I\label{eq:I}\end{equation}
\end_inset
\end_layout
\begin_layout Standard
Cross-references:
\begin_inset CommandInset ref
LatexCommand eqref
reference "eq:B"
\end_inset
,
\begin_inset CommandInset ref
LatexCommand eqref
reference "eq:C"
\end_inset
,
\begin_inset CommandInset ref
LatexCommand eqref
reference "eq:F"
\end_inset
,
\begin_inset CommandInset ref
LatexCommand eqref
reference "eq:G"
\end_inset
,
\begin_inset CommandInset ref
LatexCommand eqref
reference "eq:D"
\end_inset
,
\begin_inset CommandInset ref
LatexCommand eqref
reference "eq:E"
\end_inset
,
\begin_inset CommandInset ref
LatexCommand eqref
reference "eq:H"
\end_inset
,
\begin_inset CommandInset ref
LatexCommand eqref
reference "eq:I"
\end_inset
\end_layout
\begin_layout Standard
\lyxline
\begin_inset VSpace medskip
\end_inset
To create this example, first a counter must be defined for the Roman numbered
formulas.
To do this the following is inserted to the LaTeX-preamble:
\end_layout
\begin_layout Standard
\series bold
\backslash
newcounter{rom}
\begin_inset Newline newline
\end_inset
\backslash
renewcommand{
\backslash
therom}{
\backslash
roman{rom}}
\end_layout
\begin_layout Standard
\begin_inset Newpage newpage
\end_inset
To save the value of the Arabic counter
\series bold
equation
\series default
, this is added to the preamble
\end_layout
\begin_layout Standard
\series bold
\backslash
newcommand{
\backslash
c@org@eq}{}
\begin_inset Newline newline
\end_inset
\backslash
let
\backslash
c@org@eq
\backslash
c@equation
\begin_inset Newline newline
\end_inset
\backslash
newcommand{
\backslash
org@theeq}{}
\begin_inset Newline newline
\end_inset
\backslash
let
\backslash
org@theeq
\backslash
theequation
\end_layout
\begin_layout Standard
To be able to switch in the document between the two numbering schemes,
the following commands are defined in the preamble:
\end_layout
\begin_layout Standard
\series bold
\backslash
newcommand{
\backslash
setrom}{
\backslash
let
\backslash
c@equation
\backslash
c@rom
\backslash
let
\backslash
theequation
\backslash
therom}
\end_layout
\begin_layout Standard
for Roman numbering and
\end_layout
\begin_layout Standard
\series bold
\backslash
newcommand{
\backslash
setarab}{
\backslash
let
\backslash
c@equation
\backslash
c@org@eq
\backslash
let
\backslash
theequation
\backslash
org@theeq}
\end_layout
\begin_layout Standard
for Arabic numbering.
\end_layout
\begin_layout Standard
Every formula will be by default numbered Arabic.
To switch to Roman numbering, the command
\series bold
\backslash
setrom
\series default
is inserted in TeX-mode.
With the command
\series bold
\backslash
setarab
\series default
the numbering is switched to Arabic.
\end_layout
\end_body
\end_document