3.84. __nv_erfinv

Prototype: 

double @__nv_erfinv(double %x)

Description:

Calculate the inverse error function of the input argument y, for y in the interval [-1, 1]. The inverse error function finds the value x that satisfies the equation y = erf(x), for − 1 ≤ y ≤ 1 , and − ∞ ≤ x ≤ ∞ .

Returns:

  • __nv_erfinv(1) returns + ∞ .

  • __nv_erfinv(-1) returns − ∞ .

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