arcsin

Compute arcsine of the given argument

arcsin(x);

will return the arcsine of an argument, returned in degress in radians. There is no custom return type, the function always returns an double.

arcsin(0); // 0°
arcsin(0.5); //PI/6 or 30°
arcsin(0.7854); //PI/4 or 45°
arcsin(1.0472); //PI/3 or 60°
arcsin(1); // PI/2 or 90° 

The argument domain is [-1, 1]. If x is outside the range, the compiler throws:

"Error: arcsin is undefined for values outside the domain range [-1, 1]."