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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, commonly approximated as 3.14159. It has been represented by ...

www.ask.com/youtube?q=Mathematical Pi&v=VWGGTb5pY2U
Mar 27, 2010 ... O boy iz dat tiem of yeer agin!!111!! This is a music video of the song " Mathematical Pi" by Ken Ferrier and Antoni Chan. You can find out more ...

pi to 10000 digits - Department of Mathematics, University of Utah

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

Understanding Mathematics by Peter Alfeld, Department of Mathematics, ... pi= 3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 ...

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. That means, for any circle, you can divide the circumference (the distance around  ...

The History of Pi

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

The History of Pi. David Wilson History of Mathematics Rutgers, Spring 2000. Throughout the history of mathematics, one of the most enduring challenges has  ...

Mathematical Pi - All Too Flat

www.alltooflat.com/about/personal/ton/pi.html

3.141592653589793238462643383279502884197169399375105820974944592307816 (or Mathematical Pi to the tune of 'American Pie'). by. Ken Ferrier ...

What is Pi? - LiveScience

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

Apr 30, 2013 ... Pi (π), the 16th letter of the Greek alphabet, is used to represent the most widely known mathematical constant. By definition, pi is the ratio of the ...

What Is Pi? | Wonderopolis

wonderopolis.org/wonder/what-is-pi/

Pi is an important part of many mathematical formulas. Most geometry students first encounter pi when they study circles and learn that the area of a circle is ...

Pi -- from Wolfram MathWorld

mathworld.wolfram.com/Pi.html

pi crops up in all sorts of unexpected places in mathematics besides circles and spheres. For example, it occurs in the normalization of the normal distribution, ...

The Mathematical Pi Song | Mental Floss

mentalfloss.com/article/23151/mathematical-pi-song

Oct 30, 2009 ... Two weeks ago I wrote about The Story of Pi, a semi-educational retro video that visually explains Pi. One commenter (lynn) pointed out a song ...

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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Math Forum: Ask Dr. Math FAQ: About Pi

mathforum.org

What is Pi? Who first used Pi? How do you find it? What is it for? How many digits is it?

Pi - Math is Fun

www.mathsisfun.com

Or you could draw a circle with a diameter of 1. Then the circumference (the distance all the way around the circle) will be Pi ...

Mathematical Pi Song · Pi Day

www.piday.org

Feb 15, 2010 ... Mathematical Pi Song. February 15 ... I knew pi was beautiful! thanks for doing this! Will show to my math students on pi day. Like · Reply · 3 ...