Returns the approximate value of pi, the ratio of a circle’s circumference to its diameter.

Syntax

PI( )

Description

PI( ) returns a number that is approximately 3.141592653589793. pi is a constant that can be used in mathematical calculations. For example, use it to calculate the area and circumference of a circle or the volume of a cone or cylinder.

Use SET DECIMALS to set the number of decimal places PI( ) displays.