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libdevice User's Guide
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CUDA Toolkit v5.5 for POWER8
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3.12. __nv_atan2f
Prototype:
float @__nv_atan2f(float %x, float %y)
Description:
Calculate the principal value of the arc tangent of the ratio of first and second input arguments x / y. The quadrant of the result is determined by the signs of inputs x and y.
Returns:
Result will be in radians, in the interval [-
/, +
].
-
__nv_atan2f(0, 1) 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