besselk

Modified Bessel function of the second kind, K_n(x).

Syntax

v = besselk(x, n, s)

Description

Returns the modified Bessel function of the second kind. Decays exponentially for large x. With s = 1, returns exp(x) · K_n(x).

Example

besselk(1, 0)          % ≈ 0.4210

See also

• besseli — Modified Bessel function of the first kind, I_n(x).
• besselj — Bessel function of the first kind, J_n(x).