3.103. __nv_fast_fdividef

Prototype:

float @__nv_fast_fdividef(float %x, float %y) 

Description:

Calculate the fast approximate division of x by y.

Returns:

Returns x / y.
  • __nv_fast_fdividef( , y) returns NaN for 2 126 < y < 2 128 .

  • __nv_fast_fdividef(x, y) returns 0 for 2 126 < y < 2 128 and x .

Note:

For accuracy information see the CUDA C++ Programming Guide, Mathematical Functions Appendix, Intrinsic Functions section.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes