DBESK0(3)

SYNOPSIS
DOUBLE PRECISION FUNCTION DBESK0 (X)

NAME
dbesk0 - Compute the modified (hyperbolic) Bessel function of the third kind of order zero.

LIBRARY
SLATEC (FNLIB)

CATEGORY
C10B1

TYPE
DOUBLE PRECISION (BESK0-S, DBESK0-D)

KEYWORDS
FNLIB, HYPERBOLIC BESSEL FUNCTION, MODIFIED BESSEL FUNCTION, ORDER ZERO, SPECIAL FUNCTIONS, THIRD KIND

AUTHOR
Fullerton, W., (LANL)

DESCRIPTION
DBESK0(X) calculates the double precision modified (hyperbolic) Bessel function of the third kind of order zero for double precision argument X. The argument must be greater than zero but not so large that the result underflows. Series for BK0 on the interval 0. to 4.00000E+00 with weighted error 3.08E-33 log weighted error 32.51 significant figures required 32.05 decimal places required 33.11

REFERENCES
(NONE)

ROUTINES CALLED
D1MACH, DBESI0, DBSK0E, DCSEVL, INITDS, XERMSG

REVISION HISTORY (YYMMDD)
770701 DATE WRITTEN
890531 Changed all specific intrinsics to generic. (WRB)
890531 REVISION DATE from Version 3.2
891214 Prologue converted to Version 4.0 format. (BAB)
900315 CALLs to XERROR changed to CALLs to XERMSG. (THJ)