3.94. __nv_fabs

Prototype: 

double @__nv_fabs(double %f)

Description:

Calculate the absolute value of the input argument x.

Returns:

Returns the absolute value of the input argument.

  • __nv_fabs( ± ∞ ) returns + ∞ .

  • __nv_fabs( ± 0 ) returns 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