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libdevice User's Guide (PDF) - CUDA Toolkit v5.5 (older) - Last updated May 11, 2013 - Send Feedback

3.228. __nv_log1pf

Prototype:

float @__nv_log1pf(float %x) 

Description:

Calculate the value of l o g e ( 1 + x ) of the input argument x.

Returns:

  • __nv_log1pf( ± 0 ) returns .

  • __nv_log1pf(-1) returns +0.

  • __nv_log1pf(x) returns NaN for x < -1.

  • __nv_log1pf( + ) 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 (older) - Last updated May 11, 2013 - Send Feedback