PI

All functions > CONSTANT > PI

Returns the mathematical constant π (pi).

Syntax

PI()

Arguments

Returns

DOUBLE - The value of π (approximately 3.141592653589793)

Notes

• π is the ratio of a circle's circumference to its diameter
• π ≈ 3.141592653589793
• Used in trigonometric and geometric calculations
• COS(PI()) = -1 and SIN(PI()) = 0
• Mathematical constant, same value every time

Examples