pi (math)

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A number represented by the ๐œ‹ symbol. It is the ratio of a circle's circumference to its diameter, roughly equal to 3.14159 (this number is infinite and non-repeating, or an irrational number). This means that a circle's circumference (the entire circle itself) is a little more than three times as long as its diameter (a straight line running through the circle).

Pi and pi approximations

  • Pi: 3.14159265358979323846
  • 22/7: 3.14285714285714285714

See also