# Math.PI

#### Availability

Flash Player 5. In Flash Player 4, the methods and properties of the Math object are emulated using approximations and may not be as accurate as the non-emulated math functions supported by Flash Player 5.

#### Usage

    Math.PI

#### Parameters

None.

#### Returns

Nothing.

#### Description

Constant; a mathematical constant for the ratio of the circumference of a circle to its diameter, expressed as pi, with a value of 3.14159265358979.