3.78. __nv_erfcf

Prototype: 

float @__nv_erfcf(float %x)

Description:

Calculate the complementary error function of the input argument x, 1 - erf(x).

Returns:

  • __nv_erfcf( − ∞ ) returns 2.

  • __nv_erfcf( + ∞ ) returns +0.

Note:

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

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes