This site is a showcase for using LatexRender for mathematics in WordPress

Using LaTeX in WordPress

\mbox{\Huge \pi}

Monday 9th August 2004

Filed under: — Steve @ 7:44 pm

\displaystyle \pi = \sum _{k=0} ^{\infty}  \dfrac{1}{16^k} \left[\dfrac{4}{8k+1}-\dfrac{2}{8k+4}-\dfrac{1}{8k+5}-\dfrac{1}{8k+6}\right]

LatexRender as a plugin

Filed under: — Steve @ 6:02 pm

I have now managed to make LatexRender as a plugin (download files here) which means that it won’t be necessary to edit WordPress files. Before you get too excited this assumes

  1. You are using at least WordPress 1.2 (which uses plugins)
  2. You have the latest files which don’t eat backslashes (detailed on page 2)

If not, you can still use the method in 5th August’s post. Also you will need to put some information about where to find files in the latexrender files.

1. You need to have \LaTeX and ImageMagick installed on your server. If this is not possible, then try mimeTeX (see page 2)

2. latexrender-plugin.php
Ensure that
include_once('/home/path_to/wordpress/latexrender/latex.php');
contains the correct path to where you have put latex.php

3. latex.php
Ensure that
$latexrender_path = "/home/domain_name/public_html/path_to/latexrender";
and
$latexrender_path_http = "/path_to/latexrender";
contain the correct path to where your latexrender files are to go

4. class.latexrender.php
Ensure that
var $_latex_path = "/usr/bin/latex";
var $_dvips_path = "/usr/bin/dvips";
var $_convert_path = "/usr/bin/convert";
var $_identify_path = "/usr/bin/identify";

point to the right places.

For Windows the paths in class.latexrender.php must use \ or / not just a single \
For example
var $_latex_path = "C:\texmf\miktex\bin\latex.exe";
or
var $_latex_path = "C:/texmf/miktex/bin/latex.exe";

5. Create a new latexrender folder in your WordPress folder, with sub folders tmp and pictures. These 2 folders must be chmod to 777. Upload latex.php and class.latexrender.php to the latexrender folder

6. If you are happy to let commenters use LaTeX (but beware spammers) then in latexrender-plugin.php remove // from the line:
// add_filter(‘comment_text’, ‘addlatex’);

7. Upload latexrender-plugin.php to WordPress’s plug-in folder (/wp-content/plugins) and activate it in the Plugins menu

\LaTeX should now be enabled! Use [tex ] and [/tex ] (without the space) to surround your maths. There’s a tex button to do this for you.


 

This site is a showcase for using LatexRender for mathematics in WordPress