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

3.218. __nv_log

Prototype:

double @__nv_log(double %x) 

Description:

Calculate the base e logarithm of the input argument x.

Returns:

  • __nv_log( ± 0 ) returns .

  • __nv_log(1) returns +0.

  • __nv_log(x) returns NaN for x < 0.

  • __nv_log( + ) returns +

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