3.430. __nv_yn

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

Calculate the value of the Bessel function of the second kind of order n for the input argument.

Calculate the value of the Bessel function of the second kind of order n for the input argument x, \(Y_n(x)\).

Note

For accuracy information, see the CUDA C++ Programming Guide, Mathematical Functions Appendix, Double-Precision Floating-Point Functions section.

Returns

Returns the value of the Bessel function of the second kind of order n.

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

  • __nv_yn(n, 0) returns \(-\infty\).

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

  • __nv_yn(n, \(+\infty\) ) returns +0.

  • __nv_yn(n, NaN) returns NaN.