Wolfram|Alpha
Its run by the same company who makes Mathematica...looks pretty neat.
Originally Posted by som
I was having a play with that last night. Looks pretty useful, and as an engineering student it could save me heaps of time looking up tables and data from text books
http://shoppingsecure.com.au/ - JC's Rep
PM me or email philthy@shoppingsecure.com.au for all your stereo needs