## 3.196. __nv_j1f

Prototype:

float @__nv_j1f(float %x)



Description:

Calculate the value of the Bessel function of the first kind of order 1 for the input argument x, ${J}_{1}\left(x\right)$ .

Returns:

Returns the value of the Bessel function of the first kind of order 1.
• __nv_j1f( $±0$ ) returns $±0$ .

• __nv_j1f( $±\infty$ ) returns $±0$ .

• __nv_j1f(NaN) returns NaN.

Note:

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

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes