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Update: There is a newer version of this plugin available. Go to the Google Code site to get it.
This plugin is superceeded by LaTeXmathml v1.02.
This plugin allows users to enter LaTeX markup in any field which outputs according to the view 'output/longtext'. At the moment this includes pages, messageboards and group forums. LaTeX is also displayed in blog posts and messages, but this is done via a hack because these mods do not use the view 'output/longtext' for some reason. Hopefully this will change in future versions of Elgg.
The plugin is based on the LaTeXMathML script by Jeff Knisley (http://math.etsu.edu/LaTeXMathML/).
For an example of this plugin in use, see my elgg site.
I will be maintaining a repository of elgg plugins that I have written at my website as well as here.
This plugin requires Elgg v1.1.
This plugin overrides the following views:
The plugin should be placed below the blog and messages modules in the loading order.
If you are using a modified theme that overwrites default/page_elements/header, then you will need to make some changes in order for the plugin to work:
This is an ugly hack, but I couldn't find a way to add code to the <head></head> and <body></body> sections of every page without completely overwriting the header. Hopefully, this will be made possible in future versions of elgg.
Finally, a couple of known bugs: