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Web Results

en.wikipedia.org/wiki/Pi

The number π is a mathematical constant, the ratio of a circle's circumference to
its diameter, ..... A photograph of the Greek letter

www.historytoday.com/patricia-rothman/william-jones-and-his-circle-man-who-invented-pi

In 1706 a little-known mathematics teacher named William Jones first used a
symbol to represent the platonic concept of

www.reference.com/history/invented-pi-5cc56400e24b573d

A mathematics teacher named William Jones is credited with first using the symbol π in 1706 to represent the concept of the ratio between a circle's ...

britton.disted.camosun.bc.ca/pi/piorigin/piorigin.html

But did you ever wonder where

mathforum.org/library/drmath/view/62626.html

Date: 04/10/2003 at 05:49:07 From: Katharine Subject:

www.math.rutgers.edu/~cherlin/History/Papers2000/wilson.html

The History of

www.scientificamerican.com/article/what-is-pi-and-how-did-it/

May 17, 1999

mentalfloss.com/article/49290/william-jones-first-math-teacher-use-pi

Mar 12, 2013

www.pcworld.com/article/191389/a-brief-history-of-pi.html

Mar 13, 2013

www.straightdope.com/columns/read/2036/who-invented-pi

Sep 17, 2002

Answer

The earliest known textually evidenced approximations of pi date from around 1900 BCE; they are 25/8 (Babylonia) and 256/81 (Egypt), both within 1% of the true value.

The Greek letter pi was first used to represent the ratio of the circumference of a circle to its diameter in 1709 by mathematician William Jones.
More Info

www.theguardian.com

Mar 14, 2015

www.quora.com

If you mean who introduced the symbol pi in the public it was Euler.The following
... William Jones and his Circle: The Man

www.exploratorium.edu