Core JavaScript 1.5 Reference:Global Objects:Math:PI

From MDC

Contents 1 Summary 2 Description 3 Examples 3.1 Example: Using PI

[edit] Summary

The ratio of the circumference of a circle to its diameter, approximately 3.14159.

Property of Math
Static, Read-only
Implemented in:	JavaScript 1.0, NES 2.0
ECMA Version:	ECMA-262

[edit] Description

Because PI is a static property of Math, you always use it as Math.PI, rather than as a property of a Math object you created.

[edit] Examples

[edit] Example: Using PI

The following function returns the value of pi:

function getPi() {
   return Math.PI
}