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.

en.wikipedia.org/wiki/Pi

Any complex number, say z, can be expressed using ... In the polar coordinate
system, one number ...

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One Million Digits of Pi. 3.14... more digits loading... T-Shirts. More Pi Stuff. psych
· Pi Sightings: Pi's cameo appearance in “Psych” Season 4 Finale · sample.

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

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

www.factmonster.com/ipka/A0876705.html

The number known as pi (π) has fascinated people for millenia. The digits to the
right of its decimal point can keep going forever, and there is absolutely no ...

www.wired.com/2016/03/six-things-probably-didnt-know-pi/

Mar 14, 2016 ... No matter how big your circle, the ratio of circumference to diameter is the value
of Pi. Pi is an irrational number—you can't write it down as a ...

www.mathsisfun.com/numbers/pi.html

circle radius=1, half circumference=pi. Draw a circle with a radius of 1. The
distance half way around the circle is 3.14159265... a number known as Pi ...

www.livescience.com/34132-what-makes-pi-special.html

Aug 9, 2012 ... No number can claim more fame than pi. But why, exactly? Defined as the ratio of
the circumference of a circle to its diameter, pi, or in symbol ...

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

Apr 30, 2013 ... Pi represents the ratio of the circumference of a circle to its diameter. Pi is an
irrational number that never ends; the decimals go on forever and ...

mathworld.wolfram.com/Pi.html

Pi. DOWNLOAD Mathematica Notebook EXPLORE THIS TOPIC IN the
MathWorld Classroom CirclePi. The constant pi, denoted pi , is a real number
defined as ...