en.wikipedia.org/wiki/Pi

The number π is a mathematical constant, the ratio of a circle's circumference to
its diameter, ... letter π, sometimes spelled out as pi, and derived from the first
letter of the Gree...

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

You know what 'PI' is ... it's a number with the value 3.14, and it's used to find the
circumference and area of a circle. But did you ever wonder where PI came ...

blog.dictionary.com/pi/

Mar 13, 2014 ... The first recorded use of the letter as a mathematical symbol comes from the ......
We did a writing for each pi number we had to write a word.

www.quora.com/Where-did-the-word-Pi-come-from-Who-coined-the-term-Pi-in-mathematics

The word "Pi" is the English word for the Greek letter π (in lower case) and Π (in
upper case). In the mid-18th century the famous mathematician Leonhard Euler ...

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

It is not clear how they found their approximation for pi, but one source (Beckman
) ... Word of this did not spread to the East, however, as the Chinese used the .....
that no other calculated number comes closer to a random sequence of digits.

www.primermagazine.com/2009/field-manual/know-it-all-the-origins-of-pi

Nov 9, 2009 ... The symbol “π” and the term “pi” come from the Greek alphabet, where “π” is ...
Honor and Ethics: Does America Need a “Lending Code?” =-.

mathforum.org/dr.math/problems/word_pi.html

Dec 2, 1994 ... ... we were wondering if you could answer our question. Where did the word pi
come from, and how did someone determine it was equal to 3.14?

www.ask.com/youtube?q=Where Did the Word Pi Come from&v=TlY-Sh9Rzas

Mar 4, 2011 ... visit my site: http://www.pythagoreanmath.com Video on how to calculate pi by
Archimedes' method ...

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

William Jones and his Circle: The Man who invented Pi ... Though he did not
prove it, Jones believed that π was an irrational number: an infinite, non-
repeating ...

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

Mar 13, 2013 ... In honor of Pi Day, we bring you a brief history of everyone's favorite irrational
constant. ... Albert the Intern tries to remember what comes next. ... The π symbol
was taken from the Greek word for "perimeter. ... So there you have it—Egyptians
calculated pi using pyramids (or did they calculate pyramids usi...