3.262. __nv_normcdff

float @__nv_normcdff(float %x)

Calculate the standard normal cumulative distribution function.

Calculate the cumulative distribution function of the standard normal distribution for input argument y, \(\Phi(y)\).

Note

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

Returns

  • __nv_normcdff( \(+\infty\) ) returns 1

  • __nv_normcdff( \(-\infty\) ) returns +0