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## Pi

en.wikipedia.org/wiki/Pi

The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, .... The set of complex numbers at which exp(z) is equal to one is then an (imaginary) arithm...

## 100,000 Digits of Pi

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

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

## geometry - Why is \$\pi \$ equal to \$3.14159...\$? - Mathematics Stack ...

math.stackexchange.com/questions/17366/why-is-pi-equal-to-3-14159

Jan 13, 2011 ... Why is π equal to 3.14159 … ... Why is this number equal to 3.14159.... ? Why is it not some ... but "HOW DO WE KNOW that pi = 3.14159...".

## Does Pi Equal 3.14? - Math Forum - Ask Dr. Math

mathforum.org/library/drmath/view/58307.html

We use this to find area, volume, and any other equations using pi. If pi has an infinite number of digits, how can 3.14 be exact? I am very ...

## One Million Digits of Pi · Pi Day

www.piday.org/million/

One Million Digits of Pi. 3.... Pi Clock ... News & Events: The New Yorker: Why Pi Matters · pi-trainer-app · Technology: Memorize More Digits with Pi Trainer.

## 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 ...

## PI - Math.com

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

History | Pi web sites| Do it yourself Pi |The Digits| Formulas ... that there was a fixed ratio of circumference to diameter that was approximately equal to three.

## What is Pi? - Geometry Made Easy! - Quatr.us

quatr.us/math/geometry/pi.htm

Pi is a number that is approximately equal to 3.14. ... Usually in math we write pi with the Greek letter π, which is the letter "p" in Greek. ..... @Anonymous, try starting by explaining to me what you do understand about pi, and I'll see if I can move ...

## How is pi equivalent to 180 degrees? - Quora

www.quora.com/How-is-pi-equivalent-to-180-degrees

The point is that pi radians is equal to 180 degrees. ... Why does pi or 22/7 radian regarded as 180 degrees? ... How do I find Pi r of an equivalence relation?

## Is pi equal to 22/7? - Quora

www.quora.com/Is-pi-equal-to-22-7

math] while [math]\pi = 3.14159...[/math]. ... Moreover, there is no fraction that is equal to π exactly. ... Why does pi or 22/7 radian regarded as 180 degrees?

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 - Math is Fun

www.mathsisfun.com

all the way around the circle) will be Pi. Pi (the symbol is the Greek letter π) is: ... In fact π is not equal to the ratio of any two numbers, which makes it an irrational  ...

### Why is pi equal to 3.14159? - ResearchGate

www.researchgate.net

Pi, even as the ratio of circumference to diameter, does not depend on the ..... of rigid bodies, we would have a hard time to prove that pi is not equal to 355/113.

### What is Pi? - LiveScience

www.livescience.com

Apr 30, 2013 ... Pi equals the circumference divided by the diameter of a circle. Credit: YuryZap | ... There is no exact value, seeing as the number does not end.