3.10. __nv_atan

Prototype: 

double @__nv_atan(double %x)

Description:

Calculate the principal value of the arc tangent of the input argument x.

Returns:

Result will be in radians, in the interval [- π /2, + π /2].

  • __nv_atan(0) returns +0.

Note:

For accuracy information see the CUDA C++ Programming Guide, Mathematical Functions Appendix, Double-Precision Floating-Point Functions section.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes