Pick a Digit, Any Digit
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Ivars Peterson (MathTrek)  
One of the most amazing mathematical results of the last few years was the discovery of a surprisingly simple formula for computing digits of the number pi. Unlike previously known methods, this one allows you to calculate isolated digits  without computing and keeping track of all the preceding numbers. No one had previously even conjectured that such a digitextraction algorithm for pi was possible, says Steven Finch of MathSoft, Inc., in Cambridge, Mass. The only catch is that the formula works for hexadecimal (base 16) or binary digits but not for decimal digits...  


Levels:  Middle School (68), High School (912), College 
Languages:  English 
Resource Types:  Articles 
Math Topics:  Pi 
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