3.76. __nv_erf

Prototype: 

double @__nv_erf(double %x)

Description:

Calculate the value of the error function for the input argument x, 2 π ∫ 0 x e − t 2 d t .

Returns:

  • __nv_erf( ± 0 ) returns ± 0 .

  • __nv_erf( ± ∞ ) returns ± 1 .

Note:

For accuracy information see the CUDA C++ Programming Guide, Mathematical Functions Appendix, Double-Precision Floating-Point Functions section.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes