3.79. __nv_erfcinv

Prototype:

double @__nv_erfcinv(double %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_erfcinv(0) returns + .

  • __nv_erfcinv(2) 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