__device__ float erfcinvf ( float  y  ) 

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 $0 \le y \le 2$, and $-\infty \le x \le \infty$.

Returns:
  • erfcinvf(0) returns $\infty$.
  • erfcinvf(2) returns $-\infty$.
Note:
For accuracy information for this function see the CUDA C Programming Guide, Appendix C, Table C-1.


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