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I searched Google for calculators and found this. Sam Levy
Use Google as a calculator and a currency converter.
Example searches: 5+2*2 sqrt(-4) 3 meters in feet dollars to euros 5 GBP in yen
I use it for stock information, just enter the code.

too bad Google has not learned to think RPN. I tried typing 3 ENTER 2 - , then pressed the enter key, it didn't yield the answer I expected. :-(

hpnut in Malaysia

Edited: 16 Aug 2011, 5:48 p.m.

http://www.wolframalpha.com/tour/what-is-wolframalpha.html

You can use the tides in alaska and solve calculus problems with it.

Edited: 18 Aug 2011, 9:25 a.m.