2.7.2.3 atan
Declaration:
double atan(double
x);
Returns the arc tangent of x in radians.
Range:
The value of x has no range. The returned value is in the range of -p/2 to +p/2 (inclusive).
Declaration:
double atan(double
x);
Returns the arc tangent of x in radians.
Range:
The value of x has no range. The returned value is in the range of -p/2 to +p/2 (inclusive).