en.wikipedia.org/wiki/Pi

The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, .... This is also called the "Feynman point" in mathematical folklore, after ... at any point yields a rational approximation for π; the first four of these are 3, 22/7, ...... It produces about 14 digits of π per term, and has been used for several ...

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 ... Pi has been calculated to over one trillion digits beyond its decimal point.

www.al.com/news/index.ssf/2017/03/pi_day_2017_freebies_facts_and.html

Mar 14, 2017 ... March 14 - or 3/14 - is Pi Day in honor of the Greek letter that ... "Pi has been calculated to over one trillion digits beyond its decimal point.

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

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

www.khanacademy.org/math/math-for-fun-and-glory/vi-hart/pi-tau/v/anti-pi-rant-2014

Anti-Pi Rant, 3/14/14. About ... 3 years ago by View profile for: Philipp Ershov ..... The whole point of the video was to understand that pi is not infinite, yet…

fivethirtyeight.com/datalab/how-many-digits-of-pi-you-have-to-have-memorized-to-be-special

Mar 14, 2015 ... Today is Pi Day — the day each year, March 14, that follows the first three ... to the first 3 after the decimal point, you're in the top 5 percent of pi ...

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 ... been calculated to over one trillion digits beyond that decimal point.

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

Mar 14, 2016 ... OK, it's a bit of a stretch because 3/14 looks like a fraction and not Pi. ... Expanding this function about the point x = 1 should be equal to π/4.

experimentalmath.info/blog/2014/02/pi-day-3-14-14

Feb 23, 2014 ... pi < 3 1/7 = 3.14285... This amazing work, done without trigonometry or floating point arithmetic, is charmingly described by George Phillips in ...