## 3.107. __nv_fast_powf

Prototype:

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



Description:

Calculate the fast approximate of x, the first input argument, raised to the power of y, the second input argument, ${x}^{y}$ .

Returns:

Returns an approximation to ${x}^{y}$ .

Note:

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

Most input and output values around denormal range are flushed to sign preserving 0.0.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes