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From Number to Formula

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Visit this site: http://www.maa.org/mathland/mathland_11_11.html
Author:Ivars Peterson (MathLand)
Description: Given the number 1.6180339887, how can you find out whether this particular number is special in some way, as the output of a specific formula or the value of a familiar mathematical function? Do you have a favorite number: Pi, the golden ratio, e (Napier's number), gamma (Euler's constant), the square root of 2 (Pythagoras's number), the natural logarithm of 10, or one of Feigenbaum's numbers? Now, you can find out what those numbers are made of. An explanation of the Inverse Symbolic Calculator, which is somewhat like a spell checker for numbers.
Levels: High School (9-12), College
Languages: English
Resource Types: Calculators, Articles
Math Topics: Number Sense/About Numbers

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