Happy Pi Day!

Reference.com

The history of pi dates back to the ancient Babylonians and Egyptians. Babylonians estimated pi as 3.125, and the Egyptians approximated pi to be 3.1605. However, it was the Greek mathematician Archimedes that calculated pi to be between 223/71 and 22/7. A general estimate for pi is 22/7 or 3.14.

In 1706, William Jones was the first to introduce a Greek letter for pi, which was later adopted by the mathematician Euler to represent the ratio between a circle’s circumference to its area. Later mathematicians extended the number of decimal places in this irrational number through rigorous calculations. In the computer age, pi has been estimated to its two-quadrillionth digit.

Some mathematical problems that feature pi are the area of a circle, a circle’s circumference, arc length and the different surface area and volume formulas for a cone, sphere and cylinder. In mathematics, the ratio between a circle’s circumference and diameter is given as pi.

 

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5 Responses to Happy Pi Day!

  1. czarowniczy says:

    Czarina and I were discussing this post popping up today as we gnoshed fried mushrooms and seafood nachos with drinks. A rare day out.

    Liked by 3 people

  2. WeeWeed says:

    Liked by 4 people

  3. czarowniczy says:

    Watching a program on Einstein and Hawking. It reminds us that Einstein was born on March 14th and Hawking died on March 14th. They were also both 76 when they died.

    Liked by 3 people

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