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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, ..... The first infinite sequence

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

Mar 13, 2013

www.quora.com/Mathematics-Who-discovered-pi

Mar 10, 2013

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

You know what '

www.ask.com/math/discovered-pi-math-6731bb9b0528a07

The identity of the first person to

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

May 17, 1999

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

William Jones and his Circle: The Man who invented

betterexplained.com/articles/prehistoric-calculus-discovering-pi/

May 29, 2008

www.wikihow.com/Discover-Pi-for-Yourself-Using-Circles

How to

quatr.us/math/geometry/pi.htm

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.math.rutgers.edu

The earliest value of

www.geom.uiuc.edu

The ancient Babylonians knew of the existence of

www.exploratorium.edu