Hello,

there is a minor (but important) error in the **FastMath.atan** method’s javadoc:

[java]public static float atan(float fValue)

Returns the arc tangent of an angle given in radians.

Parameters:

fValue - The angle, in radians.

Returns:

fValue’s atan

See Also:

Math.atan(double)[/java]

The **Math.atan** method does it right. You can read a suitable javadoc there.

Usually, you do not put angles into inverse triogonometric functions like arctangens (atan).

Usually, you get angles from them and put edge-ratios in there…