Talk to us! Your input helps us improve Ask.com for the millions of people who use us every day.

How would you rate Ask.com?

How can we make Ask.com better for you?

Please provide feedback before submitting your response.

Thanks for the feedback!

Web Results

en.wikipedia.org/wiki/Pi

The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, ... series, was not available until a millennium later, when in the 14th century the Madhava–...

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

Mar 13, 2013

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

If you mean who introduced the symbol

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

The earliest value of

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

May 29, 2008

www.geom.uiuc.edu/~huberty/math5337/groupe/overview.html

The ancient Babylonians knew of the existence of

www.exploratorium.edu/pi/history_of_pi/

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

You know what '

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

Succinctly,

www.encyclopedia.com/topic/pi.aspx

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.reference.com

The identity of the first person to

discovery.yukozimo.com

The

www.historytoday.com

William Jones and his Circle: The Man who invented