Summary

  • Pi Day is celebrated on March 14 each year, with fans of the mathematical constant squeezing in as many puns and pieces of pie as possible.
  • This has put its lesser-known sibling, the constant e, into the shadow.
  • Also known as Euler’s number and Napier’s constant, e is the base rate of growth or decay for any continually changing process.
  • It can be used to calculate compound interest, the growth of bacteria, and the decay of radioactive materials.
  • It is an important number in many areas of maths, including calculus, geometry, and trigonometry.
  • In a post celebrating Pi Day, Hackaday looks at the number, its history, and how it can be used.

By Al Williams

Original Article