You need the source code?
It consists of several files written in C (http://www.forkosh.com/mimetex.zip - source code)
Compilation command: cc -DAA mimetex.c gifsave.c -lm -o mimetex.cgi
Example input: ht_p://domain.com/cgi-bin/mimetex.cgi?
x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}
The output should be an image containing the proper mathematical display of the formula: http://www.forkosh.dreamhost.com/cgi-bin/m...t{b^2-4ac}}{2a}