__device__ float rcbrtf ( float  x  ) 

Calculate reciprocal cube root function of x

Returns:
  • rcbrt($\pm 0$) returns $\pm \infty$.
  • rcbrt($\pm \infty$) returns $\pm 0$.
Note:
For accuracy information for this function see the CUDA C Programming Guide, Appendix C, Table C-1.


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