Pi and the Fibonacci Numbers
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http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/fibpi.html  


Ron Knott  
Contents: How Pi is calculated (Measuring the steepness of a hill; The tangent of an angle; The arctan function; Gregory's Formula for arctan(t); Radian measure; Gregory's series and pi; Using Gregory's Series to calculate pi; Machin's Formula; Another twoangle arctan formula for pi); Pi and the Fibonacci Numbers (The General Formulae); Some more formulae for two angles.  


Levels:  High School (912), College 
Languages:  English 
Resource Types:  Problems/Puzzles 
Math Topics:  Golden Ratio/Fibonacci, Pi 
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