How was Greek letter π (pi) chosen to represent 3.14 (22/7)
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How was Greek letter π (pi) chosen to represent 3.14 (22/7)

[From: ] [author: ] [Date: 12-11-01] [Hit: ]
of 1706. Jones first use of the Greek letter was in the phrase 1/2 Periphery (π) in the discussion of a circle with radius one. He may have chosen π because it was the first letter in the Greek spelling of the word periphery.Shamelessly plagiarized from Wilkipedia: http://en.wikipedia.Incidentally,......
"The first mathematician to use the Greek letter π to represent the ratio of a circle's circumference to its diameter was William Jones, who used it in his work Synopsis Palmariorum Matheseos; or, a New Introduction to the Mathematics, of 1706. Jones' first use of the Greek letter was in the phrase "1/2 Periphery (π)" in the discussion of a circle with radius one. He may have chosen π because it was the first letter in the Greek spelling of the word periphery."

Shamelessly plagiarized from Wilkipedia: http://en.wikipedia.org/wiki/Pi

Incidentally, π is not equal to 22/7, but that is a good approximation of the correct value, being only about 0.04% too large.

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Because pies are generally round, and so are circles.
When you use π in geometry it is generally used to solve a problem involving circles.
So since pi is so close to pie, it only make sense that they use it.

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Pi is short for the greek word for perimeter. Euler used it to represent the value we know for it.

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Magic.
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