Saturday, March 16th, 2019

Today, March 14, is commemorated as international PI day in honor of one of the most important numbers used in our understanding of the physical universe.

Pi is an irrational number, which means it cannot be represented as a simple fraction, and those numbers cannot be represented as terminating or repeating decimals. Therefore, the digits of pi go on forever in a seemingly random sequence. It is the ratio of the circumference of a circle and the diameter of a circle.

Circumference = pi times D where D is the diameter of the circle.

The first hundred digits of PI are:

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 …

And I see that the restaurant Shari’s is offering a free piece of PIE for a ten dollar purchase on Pi Day to existing signed-up customers. A fancy play on words there.