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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 - 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  ...

## One Million Digits of Pi · Pi Day

www.piday.org/million/

One Million Digits of Pi. 3.14... more digits ... Videos: “Lose Yourself in the Digits” Pi Day Rap · 314-pie-via- ... Videos: Music Video: What is the value of Pi? digits.

## Value Of Pi

wiki.c2.com/?ValueOfPi

The ValueOfPi is irrational (more specifically, transcendental); what follows are either ... Seriously, it does make sense to define "pi" as a defined constant - not ...

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

www.scientificamerican.com/article/the-long-search-for-the-value-of-pi/

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

## 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 ...

## Calculating Pi (π) - Maths Careers

www.mathscareers.org.uk/article/calculating-pi/

Ancient and modern methods can be used to calculate PI. ... Someone had to come up with the approximate value for Pi (π) which appears on your calculator - it ...

## Ask Alexa for the value of pi (if you have time to kill) - CNET

www.cnet.com/news/amazon-alexa-echo-value-of-pi/

Nov 15, 2016 ... Get comfortable. Amazon's Alexa assistant gives a long-winded, not entirely literal answer when you request the value of pi.

## 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 ...