This constant provides the numeric value for pi, the ratio of circumference of a circle to its diameter.

The resulting value returned is approximately 3.141592653589793 (to 15 d.p.)

Warnings:

• Note that Math.sin(Math.PI/2) may not yield exactly 1.

• Note that Math.cos(Math.PI) may not return precisely zero.

• Note that Math.acos(0) may not return the same value as Math.PI.

Property attributes:

ReadOnly, DontDelete, DontEnum.

Cross-references:

ECMA 262 edition 2 - section - 15.8.1.6

ECMA 262 edition 3 - section - 15.8.1.6