Quick note: Publishing equations on the Web

I’m transcribing my paper notes on short-time measurment of the speech signal and needed a way to insert some equations into my blog post.  I found an easy way to do this is to use GNU TeXmacs to enter the equations which can produce postscript files.  Then I use GIMP, the GNU Image Manipulation Program to crop the postscript page and convert the result to a PNG image.  I’m bearly scratching the surface of Texmacs’ capabilities.  It can be used to write complete scientific papaers.  Despite it’s name TeXmacs requires no knowledge of Donald Knuth’s TeX language.  From downloading TeXmacs to generating a PNG image of an equation took me less than an hour.