3.13. __nv_atanf

Prototype: 

float @__nv_atanf(float %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, Single-Precision Floating-Point Functions section.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes