3.197. __nv_jn

Prototype: 

double @__nv_jn(i32 %n, double %x)

Description:

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.

  • __nv_jn(n, NaN) returns NaN.

  • __nv_jn(n, x) returns NaN for n < 0.

  • __nv_jn(n, + ∞ ) 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