BESSELK
Returns the modified Bessel function of the second kind[1] of a number. Kn(x).
Syntax:
BESSELK(x,
n)
Revisions:
This function was added in 2.00.
-
Weisstein, Eric W.
"Modified Bessel Function of the Second Kind."
From MathWorld--A Wolfram Web Resource.
http://mathworld.wolfram.com/ModifiedBesselFunctionoftheSecondKind.html