This document includes math equations (highlighted in red) which are best viewed with Firefox version 4.0 or higher, or another MathML-aware browser. There is also a PDF version of this document.
libdevice User's Guide (PDF) - CUDA Toolkit v5.5 for POWER8 (older) - Last updated October 15, 2014 - Send Feedback

3.82. __nv_erfcxf

Prototype:

float @__nv_erfcxf(float %x) 

Description:

Calculate the scaled complementary error function of the input argument x, e x 2 erfc ( x ) .

Returns:

  • __nv_erfcxf( - ) returns +

  • __nv_erfcxf( + ) returns +0

  • __nv_erfcxf(x) returns + if the correctly calculated value is outside the double floating point range.

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 October 15, 2014 - Send Feedback