A quick mention of a search tool I came across a few days ago. WolframAlpha is a tool which answers your questions, particularly if you have a question about measurement, scientific calculation, or other quasi-geekry. Its worth a look even just to much about with the semantics of the search language – the tour.
It works. I’m still learning what the particular niche of the tool is – so that I can use the tool correctly. They have posted some excellent areas where the engine really excels.
Wolfram|Alpha introduces a fundamentally new way to get knowledge and answers—
not by searching the web, but by doing dynamic computations based on a vast collection of built-in data, algorithms, and methods.
I tried a pretty basic search of “pi to 100 places”, and the answer was spot on.
Happy complex calculations folks.