scipy.special.k1¶

scipy.special.k1(x) = <ufunc 'k1'>¶

Modified Bessel function of the second kind of order 1, \(K_1(x)\).

Parameters:	x : array_like Argument (float)
Returns:	K : ndarray Value of the modified Bessel function K of order 1 at x.

See also

Notes

The range is partitioned into the two intervals [0, 2] and (2, infinity). Chebyshev polynomial expansions are employed in each interval.

This function is a wrapper for the Cephes [1] routine k1.

References

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