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libdevice User's Guide (PDF) - CUDA Toolkit v5.5 for POWER8 (older) - Last updated January 10, 2015 - Send Feedback

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 for this function see the CUDA C Programming Guide, Appendix C, Table C-2.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes


libdevice User's Guide (PDF) - CUDA Toolkit v5.5 for POWER8 (older) - Last updated January 10, 2015 - Send Feedback