credits
Pi & mathematics
,
the greek letter, is the symbol for the ratio of the circumference
of a circle to its diameter. Pi = 3.1415926535... Pi Day is
celebrated by math enthusiasts around the world on March 14th.
learn about Pi
With the use of computers, Pi has been calculated to over 1 trillion digits past the decimal. Pi is an irrational number meaning it will continue infinitely without repeating. The symbol for pi was first used in 1706 by William Jones, but was popular after it was adopted by the Swiss mathematician Leonhard Euler in 1737... learn more »
Pi Day
Pi Day is the brainchild of American physicist Larry Shaw, who created the holiday at San Francisco Exploratorium in 1987. It was Sara Shaw, Larry's then 14-year-old daughter, who accidentally found that Albert Einstein's birthday (March 14, 1879) overlapped the Pi Day in 1989 at the 3rd Pi Day. This founding in turn gradually promotes this special date to reach an international fame.