I didnt download yet. But since I dont know to use directory prompt....is there any other way around?

Just go to the link given above and wait until the applet loads and you're ready. If you want to download and use via a shortcut, try googling on how to do this. I found this advice: http://stackoverflow.com/questions/394616/running-jar-file-in-windows.

Can we do Additions, multiplication etc?

Well, there is no explicit feature in the program, but you can show a number, then another, and then their sum or their product, by manually inputting the right numbers via the keyboard. Adding some explicit support for equations ('number' -> 'operator' -> 'number' -> result) can be added fairly quickly I think.... I'll put it on my todo list

Hello there,

Inspired by this website, I created some very simple applet that displays pictures in a fashion similar to LM. I would like to share this with you - I would be very grateful for feedback :-)

http://kyps.net/static/artmath/index.htm

Hope its useful.

Best,
Andreas

Hi there,

I am Andreas from Belgium 
This site is very informative and inspiring. Thanks for creating it!

Cheers,
Andreas