__device__ float expf ( float  x  ) 

Calculate the base $e$ exponential of the input argument x, $e^x$.

Returns:
Returns $e^x$.
Note:
For accuracy information for this function see the CUDA C Programming Guide, Appendix C, Table C-1.

This function is affected by the --use_fast_math compiler flag. See the CUDA C Programming Guide, Appendix C, Table C-3 for a complete list of functions affected.


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