3.80. __nv_erfcinvf

Prototype: 

float @__nv_erfcinvf(float %x)

Description:

Calculate the inverse complementary error function of the input argument y, for y in the interval [0, 2]. The inverse complementary error function find the value x that satisfies the equation y = erfc(x), for 0 ≤ y ≤ 2 , and − ∞ ≤ x ≤ ∞ .

Returns:

  • __nv_erfcinvf(0) returns + ∞ .

  • __nv_erfcinvf(2) returns − ∞ .

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