PI function

Returns the number 3.14159265358979, the mathematical constant pi, accurate to 15 digits.

Syntax

PI()

Examples

Formula	Description (Result)
=PI()	Pi (3.14159265358979)
=PI()/2	Pi/2 (1.570796327)
=PI()*(3^2)	Area of a circle, with the radius (28.27433388)