The Extranet+Ultra®-Sustained Forum for Franchised Authors, by Daniela BERNDT

The Cognitive Economy

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The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, though it is also sometimes spelled out as "pi" (/paɪ/). Source: Wikipedia.

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