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.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 ...

www.piday.org/million/

One Million Digits of Pi. 3.... T-Shirts. More Pi Stuff. digits · Pi Sightings: Great Pi
Day Activities for Teachers · digits · Videos: Mathematical Pi Song · rap-music- ...

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
...

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 ...

www.ask.com/youtube?q=Pi Math&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 ...

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
...

mathworld.wolfram.com/Pi.html

(OEIS A000796). Pi's digits have many interesting properties, although not very
much is known about their analytic properties. However, spigot (Rabinowitz and ...

www.reference.com/math/pi-math-9717f37c9ce7dba8

Pi is a mathematical constant and irrational number representing the ratio of a
circle's circumference to its diameter with a value of approximately 3.1416.

www.mathopenref.com/pi.html

The number Pi, denoted by the Greek letter π - pronounced 'pie', is one of the
most common constants in all of mathematics. It is the circumference of any circle,
...