SpeedCrunch is a versatile calculator for multiple operating systems like Microsoft Windows, Apple Macintosh and Linux. The calculator is still provided in a early version but contains lots of interesting options and functionality that extend the regular calculators that ship with the operating systems. The SpeedCrunch calculator supports both entering the calculations directly as well as copy and paste calculations and results.
The calculator comes with a math book, constants, functions, permanent variables and a history feature. One of the interesting features is syntax highlighting. SpeedCrunch will display the calculation in various colors which makes it easier to check the equation.
Another helpful function is auto completion which will display matching functions, constants or variables.

SpeedCrunch supports more than a dozen languages and can be downloaded right from the developer’s website.
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Computer calculators will be much more useful when every computer has touch screens like phones have.
Now, I find using a stand-alone calculator easier than moving the mouse back and fro to click buttons on a computer calculator.
that looks nice! though i really prefer using RPN, so i’ll stick with calculator.net (windows only)
http://www.speech.kth.se/calculator/
Do you know that you can use your keyboard instead of mouse?
Why do NOD32 tell me that is a virus?The download is http://speedcrunch.googlecode.com/files/SpeedCrunch-0.10.1.zip…. CAn you help me?Thanks
Cool tip Martin. I also like the Garbanzo tip.