FAQ by WuJiewen.com

To enable math, e.g., LaTeX on wikipages, first make sure that you have texvc.

There are two ways to get texvc. The first one is to compile the source using Ocaml. [recommended. If you find any problem later, you can always re-compile to resolve problems.]

While another possibility is to use a precompiled binary file texvc directly, which can be downloaded from here. To test if texvc worksvia command lines, try: texvc /tmp /tmp '\LaTeX' 'utf-8', and you should see a png file in /tmp. (texvc is not site-available, add it to the /math directly, and set its permissin 755)

Now change the LocalSetting.php to enable math (false by default):$wgUseTeX = true;

Under the wiki directory, create the directories for tex and image files: /images/tmp if not yet created. Also note that /images/math is needed. Note to set the permission of the two folders to 755!

It should work by now. However, I have been seeking a solution for this error:

Failed to parse (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert)

Refer to this post:How to resolve this problem: Failed to parse (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert) in MediaWiki when I try to enable math?