Who knows of a good equation editor? I have used the one that comes with MS Word, and I find it very convenient. Changes in my circumstances will take this editor out of my reach, so I need to find a new one. I found one that is called "Equation Illustrator V." It is clearly more cumbersome that the MS Word Equation editor. I would like the program to work indepently of other programs. It would be nice if it included drawing tools for diagrams and such. I don't mind paying a few dollars for a good editor, but of course I'd prefer a free one.