DBSK0E(3)

SYNOPSIS
DOUBLE PRECISION FUNCTION DBSK0E (X)

NAME
dbsk0e - Compute the exponentially scaled modified (hyperbolic) Bessel function of the third kind of order zero.

LIBRARY
SLATEC (FNLIB)

CATEGORY
C10B1

TYPE
DOUBLE PRECISION (BESK0E-S, DBSK0E-D)

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

AUTHOR
Fullerton, W., (LANL)

DESCRIPTION
DBSK0E(X) computes the double precision exponentially scaled modified (hyperbolic) Bessel function of the third kind of order zero for positive double precision argument X. 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 Series for AK0 on the interval 1.25000E-01 to 5.00000E-01 with weighted error 2.85E-32 log weighted error 31.54 significant figures required 30.19 decimal places required 32.33 Series for AK02 on the interval 0. to 1.25000E-01 with weighted error 2.30E-32 log weighted error 31.64 significant figures required 29.68 decimal places required 32.40

REFERENCES
(NONE)

ROUTINES CALLED
D1MACH, DBESI0, 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)