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## Pi

en.wikipedia.org/wiki/Pi

Some approximations of pi include: Integers: 3; Fractions: Approximate fractions include (in order of increasing accuracy) ...

## 100,000 Digits of Pi

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

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

## Math Forum: Finding the Value of Pi

mathforum.org/isaac/problems/pi1.html

Historians estimate that by 2000 B.C. humans had noticed that the ratio of circumference to diameter was the same for all circles. This discovery hinged on the ...

## One Million Digits of Pi · Pi Day

www.piday.org/million/

One Million Digits of Pi. 3.... More Pi Stuff. Visualize-Pi · Pi Sightings: Visualize Pi Kickstarter Project · Digits: Search the Digits of Pi · new-yorker · News & Events: ...

## The History of Pi

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

They used this method to find that pi was slightly greater than 3, and came up with the value 3 1/8 or 3.125 (Beckmann, 11). However, this theory is probably a  ...

## The Area of a Circle and the Value of Pi | WIRED

www.wired.com/2015/03/area-circle-value-pi/

Mar 14, 2015 ... How do you find the area of a circle? Can you measure the area of a circle and use that to find a value for Pi?

## 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.

## Japanese mathematician breaks record for determining the value of pi

www.telegraph.co.uk/news/worldnews/asia/japan/8834265/Japanese-mathematician-breaks-record-for-determining-the-value-of-pi.html

Oct 18, 2011 ... A Japanese man has shattered his own world record for determining the value of pi, calculating the ratio of the circumference of a circle to its ...

## What is Pi? - Live Science

www.livescience.com/29197-what-is-pi.html

Apr 30, 2013 ... When starting off in math, students are introduced to pi as a value of 3.14 or 3.14159. Though it is an irrational number, some use rational ...

## pi to 10,000 digits - Department of Mathematics, University of Utah

www.math.utah.edu/~pa/math/pi.html

pi=3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899 86280 34825 34211 70679 82148 08651 ...

Answer
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.
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### Value Of Pi

c2.com

Seriously, it does make sense to define "pi" as a defined constant - not .... That's why we say that the value of Pi doesn't change in gravitational fields, or in other ...

### The Long Search for the Value of Pi - Scientific American

www.scientificamerican.com

Mar 14, 2016 ... The mathematical odyssey, plus a guide to calculating pi for yourself.

### PI - Math.com

www.math.com

Pi is a name given to the ratio of the circumference of a circle to the diameter. ... the needle lands on a line, it turns out to be directly related to the value of Pi.