3.316. __nv_y1

Prototype: 

double @__nv_y1(double %x)

Description:

Calculate the value of the Bessel function of the second kind of order 1 for the input argument x, Y 1 ( x ) .

Returns:

Returns the value of the Bessel function of the second kind of order 1.

  • __nv_y1(0) returns − ∞ .

  • __nv_y1(x) returns NaN for x < 0.

  • __nv_y1( + ∞ ) returns +0.

  • __nv_y1(NaN) returns NaN.

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