# scipy.special.j1¶

scipy.special.j1(x) = <ufunc 'j1'>

Bessel function of the first kind of order 1.

Parameters: x : array_like Argument (float). J : ndarray Value of the Bessel function of the first kind of order 1 at x.

jv

spherical_jn
spherical Bessel functions.

Notes

The domain is divided into the intervals [0, 8] and (8, infinity). In the first interval a 24 term Chebyshev expansion is used. In the second, the asymptotic trigonometric representation is employed using two rational functions of degree 5/5.

This function is a wrapper for the Cephes [R514] routine j1. It should not be confused with the spherical Bessel functions (see spherical_jn).

References

 [R514] (1, 2) Cephes Mathematical Functions Library, http://www.netlib.org/cephes/index.html

scipy.special.j0

scipy.special.y0