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en.wikipedia.org/wiki/Pi

The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, ..... Integers: 3; Fractions: Approximate fractions include (in order of increasing accuracy) ..... Series that converge even faster include Machin's series and Chudnovsky's series, the latter producing 14 correct decimal digits per term.

en.wikipedia.org/wiki/Pi_Day

Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on March 14 since 3, 1, and 4 are the first three significant digits of π.

www.piday.org

Pi Day is celebrated on March 14th (3/14) around the world. Pi (Greek letter “π”) is the symbol used in mathematics to represent a constant — the ratio of the ...

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

100,000 Digits of Pi Pi Logo .... Created: March 1996 ---- Last Modified: July 6, 1997. Copyright © 1996-1997 Michael D. Huberty, Ko Hayashi & Chia Vang.

www.pinterest.com/explore/pi-3-14

Find and save ideas about Pi 3 14 on Pinterest. | See more ideas about Pi math, Pi jokes and Pi day.

www.cbsnews.com/news/pi-day-nerds-celebrate-314-march-14

Mar 14, 2017 ... Calling all math lovers: it's Pi Day, celebrated on March 14, or 3/14, every year. Symbolized by the Greek letter “π,” Pi is the symbol used in ...

www.mathsisfun.com/numbers/pi.html

Pi (π). pi circle diameter. Draw a circle with a diameter (all the way across the circle) of 1. Then the ... Pi Day is celebrated on March 14. March is the 3rd month,  ...