3.281. __nv_sqrt

Prototype: 

double @__nv_sqrt(double %x)

Description:

Calculate the nonnegative square root of x, x .

Returns:

Returns x .

  • __nv_sqrt( ± 0 ) returns ± 0 .

  • __nv_sqrt( + ∞ ) returns + ∞ .

  • __nv_sqrt(x) returns NaN if x is less than 0.

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