__device__ float jnf ( int  n,
float  x 
)

Calculate the value of the Bessel function of the first kind of order n for the input argument x, $J_n(x)$.

Returns:
Returns the value of the Bessel function of the first kind of order n.
  • jnf(n, NaN) returns NaN.
  • jnf(n, x) returns NaN for n < 0.
  • jnf(n, $+\infty$) returns +0.
Note:
For accuracy information for this function see the CUDA C Programming Guide, Appendix C, Table C-1.


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