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Math.atan2

math.atan2, atan2, arc tangent

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.atan2(y, x)

Parameters

`x` A number specifying the x coordinate of the point.

`y` A number specifying the y coordinate of the point.

Returns

A number.

Description

Method; computes and returns the arc tangent of `y/x` in radians. The return value represents the angle opposite the opposite angle of a right triangle, where `x` is the adjacent side length and `y` is the opposite side length.