BESSK Function

function BESSK(N, X)

This function calculates the modified Bessel function of the third kind of integer order N, for any REAL X. The classical recursion formula is used. Reference: C.W.Clenshaw, Chebyshev Series for Mathematical Functions, Mathematical Tables, Vol. 5, 1962.


Type IntentOptional Attributes Name
integer, intent(in) :: N

Order of Bessel function.

double precision, intent(in) :: X

Argument of the Bessel function.

Return Value real(kind=8)


proc~~bessk~~CallsGraph proc~bessk BESSK dfloat dfloat proc~bessk->dfloat