Web Results

## Pi - Wikipedia

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 ...

## Pi Day: History of Pi | Exploratorium

www.exploratorium.edu/pi/history_of_pi/

Pi has been known for almost 4000 years—but even if we calculated the ... 1900– 1680 BC) indicates a value of 3.125 for pi, which is a closer approximation.

## 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 ...

## 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  ...

## PI - Math.com

www.math.com/tables/constants/pi.htm

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.

## Music Video: What is the value of Pi? · Pi Day

www.piday.org/2014/music-video-what-is-the-value-of-pi/

Mar 12, 2014 ... Music Video: What is the value of Pi? ... A fugue on Pi → · T-Shirts. More Pi Stuff. Visualize-Pi · Pi Sightings: Visualize Pi Kickstarter Project.

## One Million Digits of Pi · Pi Day

www.piday.org/million/

One Million Digits of Pi. 3.... T-Shirts. More Pi Stuff. 2009-house-resolution-224 ... Digits: New Pi Calculation Record Set · pi-pie-pan · Pi Sightings: Pi Pie Pan. :).

## A brief history of pi | PCWorld

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

Mar 13, 2013 ... Everybody knows the value of pi is 3.14…er, something, but how many people know where the ratio came from? Actually, the ratio came from ...

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.

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

www.scientificamerican.com

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