Euclid's Algorithm, Heron's Algorithm, Calculation of Pi (MSTE)
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http://www.mste.uiuc.edu/courses/ci301fall98/kyte/euclid.html  


Kyte, Moore, Finch; University of Illinois at UrbanaChampaign (UIUC)  
Problem (by HansGeorg Weigand): Euclid's Algorithm gives you the greatest common divisor of two natural numbers; explain the algorithm. Given two numbers (e.g. 121 and 33), calculate the gcd(121,33) (in EXCEL you need the "ifcommand"). Heron's Algorithm gives you an approximation of an irrational number; explain the algorithm and do it with Excel. Construct an iterated process for calculating pi. Download Excel spreadsheets to help solve the problems.  


Levels:  High School (912) 
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Math Topics:  Basic Algebra, Pi 
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