I want to write equations in my blog, so I found mimetex, but I could not run it from the cgi Princeton server. I do not know why. I may need to set up complicated permissions or there is a compatibility issue between mimetex and the cgi server.
Here I am testing the cgi provided by mimetex
It works, but I can only use it as a test.
Another method, less elegant though, is using MathTran, which I used to make the following equation