Returns the inverse cosine of x.


GML Code Example


Argument Description
x The angle (in radians) to return the inverse cosine of.

Returns: Real


Returns the inverse cosine of x, in that if cos(val)=n, arccos(n)=val, and the resulting number will be between pi and 0.

NOTE: This will only accept a number between -1 and 1 (anything else will throw an error).


GML Code Example

val = arccos(0);

This will set val to pi/2.

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