Plugin Equation

This Wiki Plugin renders an equation written in LaTeX syntax as an image.

Plugin Equation

Usage and Parameters

To use this plugin in a wiki page, use the syntax:

Syntax for the EQUATION plugin

{EQUATION()}your latex formula{EQUATION}

Parameter	Accepted values	Default	Effect	Required?	Since
size	(number)	(100)	Percentage of increase from normal size. 100 produces the default size. 200 produces an image twice as large	n	--

Example

This code,

Example...

{EQUATION()}\setlength{\unitlength}{1cm}
 \begin{picture}(4,2)
 \put(1,1){\circle{3}}
 \put(3,1){\circle*{5}}
 \end{picture}{EQUATION}

Would produce on this site:

e=mc^2

Another example

This code,

Example...

{EQUATION()}
<math>\setlength{\unitlength}{1cm}
 \begin{picture}(4,2)
 \put(1,1){\circle{3}}
 \put(3,1){\circle*{5}}
 \end{picture}
 </math>
{EQUATION}

Would produce on this site:

$<math>\setlength{\unitlength}{1cm} \begin{picture}(4,2) \put(1,1){\circle{3}} \put(3,1){\circle*{5}} \end{picture} </math>$

Requirements

LaTex distribution must be installed on your server. Check you have installed the following LaTex packages:
- inputenc
- amsmath
- amsfonts
- amssymb

You should have a :
- /usr/bin/latex, /usr/bin/dvips, /usr/bin/convert, /usr/bin/identify and /usr/bin/convert.
- If the path of these tasks are incorrect, you must adjust the php code in lib/equation/class.latexrender.php .
the directories lib/equation/tmp/ and lib/equation/pictures must be writeable by the server.

The plugin works with write permissions on directories

lib/equation/tmp
lib/equation/pictures

so ensure they are writable or make them so in order to have the plugin working.

About LaTex

This plugin actually wraps a minimalistic LaTex arround the formula. For instance, you can customize lib/equation/class.latexrender.php if you want other fonts.

Latex Code

\documentclass[12pt]{article}
\usepackage[latin1]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\pagestyle{empty}
\begin{document}
$your sexy formula$
\end{document}

An example:
http://help.csregistry.org/tiki-index.php?page=LatexExample

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