public static acos(x:Number) : Number

Computes and returns the arc cosine of the number specified in the parameter x, in radians.

Parameters

x:Number - A number from -1.0 to 1.0.

Returns

Number - A number; the arc cosine of the parameter x.

Example

The following example displays the arc cosine for several values.

trace(Math.acos(-1)); // output: 3.14159265358979
trace(Math.acos(0)); // output: 1.5707963267949
trace(Math.acos(1)); // output: 0

See also

asin (Math.asin method), atan (Math.atan method), atan2 (Math.atan2 method), cos (Math.cos method), sin (Math.sin method), tan (Math.tan method)