asin(var x): var
acos(var x): var
atan(var x): var
atan2(var a, var b): var
Arc functions - the
opposite of
the sin, cos, tan function, return an angle for a given value.
atan2 is used for higher precision when a is a sine and b a cosine.
Parameters:
x - any var.
a, b - any var; the tangent value is a/b.
Returns:
Angle in radians.
Example:
x = asin(1); // x is pi/2
x = asin(0.707); // x is pi/4
See also:
Trigonometry, sin, cos, tan
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