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The value of pi to 5 decimal places is 3.14159. Pi is an irrational number, so it cannot be expressed as an exact fraction and its decimal representation has no end.
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.

Pi

en.wikipedia.org/wiki/Pi

A diagram of a unit circle centered at the origin in the complex plane, including. The association between ...

One Million Digits of Pi · Pi Day

www.piday.org/million/

One Million Digits of Pi. 3.... T-Shirts. More Pi Stuff. Digits: New Pi Calculation Record Set ... Pi Sightings: Mythbusters' Grant Imahara's Prisoner Number.

100,000 Digits of Pi

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

100,000 Digits of Pi Pi Logo. 3.141592653589793238462643383279502884197169399375105820974944592307816406286  ...

giftedkids.about.com/od/Books/tp/Books-About-Pi.htm
It's aimed at adults, but if you have a younger child who is fascinated with numbers, there will be some fun facts in the book he will most likely enjoy. This book has something for just about every type of gifted kid. The book is aimed at kids ages 7 and up, but teac... More »
By Carol Bainbridge, About.com Guide

The First Thousand Digits of Pi - Fact Monster

www.factmonster.com/ipka/A0876705.html

The number known as pi (π) has fascinated people for millenia. The digits to the right of its decimal point can keep going forever, and there is absolutely no ...

Pi - Math is Fun

www.mathsisfun.com/numbers/pi.html

Draw a circle with a radius of 1. The distance half way around the edge of the circle will be 3.14159265... a number known as Pi ...

Value Of Pi

c2.com/cgi/wiki?ValueOfPi

Now to make something round, I'd have to multiply by Pi, which is a transcendental number defined to an infinite number of decimal places. Imagine Pi used to ...

Pi, a Very Special Number : nrich.maths.org

nrich.maths.org/2490

Read all about the number pi and the mathematicians who have tried to find out its value as accurately as possible.

9 random facts about pi (the irrational number, not the food) - 9News

www.9news.com/story/life/2015/03/13/pi-day-facts-figures-irrational-number/24710313/

Mar 14, 2015 ... KUSA – If you're a math nerd, March 14 is a pretty magical day. And this year, 03/ 14/15 is especially awesome. And while some use pi day as ...

Popular Q&A
Q: How to Calculate the Number PI.
A: 1. Write down the Gregory Series. The series appears as: Pi = 4sum[1)k + 1)/(2k - 1) k = 1 . infinity] Expressed in plain English, the relationship says that th... Read More »
Source: www.ehow.com
Q: Who created the number pi?
A: The King of the Lollipops! He also had help from the Queen of the Cheese Sticks. Read More »
Source: wiki.answers.com
Q: How long is the number pi.
A: Pi goes on forever! Read More »
Source: www.answers.com
Q: What is the full number pi?
A: There is no final number for pi. It goes on and on - 3.14159265358979323846264338327950288419716939937510582097494459230781640628. There is no final number for ... Read More »
Source: www.chacha.com
Q: How was the number pi discovered?
A: The first theoretical calculation of PI seems to have been carried out by Archimedes of Syracuse (287-212 Read More »
Source: www.chacha.com