atan2

Calculates the arctangent of y/x.

double atan2 (double y, double x);

Required Header
<math.h>

Return Value

This function returns the arctangent of a double in radians.

Parameters

y

  One of the two values to be converted

x

  The other value to be converted

Remarks

The atan2 function calculates the arctangent of y/x to 15 digits of precision.

Mathematics

See Also    asin, acos, atan, sin, cos, tan, sinh, cosh, tanh, cot