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14th of March is Pi Day!

Happy 3.14159265358979323846264338327950288419716939... Day!


I love Pi so irrationally that I always celebrate it.

For one thing, it's constant.


Pi (π) is the ratio of a circle’s circumference to its diameter. By measuring circular objects, it has always turned out that a circle is a little more than 3 times its width around.  The mathematician Archimedes used polygons with many sides to approximate circles and determined that Pi was approximately 22/7.


William Jones first used the symbol for Pi, the Greek symbol “π”, in 1706.  In recent years, Pi has been calculated to over one trillion digits beyond its decimal.




© Cathy Brown 1998 - 2017