# dbesks.f

          SUBROUTINE DBESKS (XNU, X, NIN, BK)
    C***BEGIN PROLOGUE  DBESKS
    C***PURPOSE  Compute a sequence of modified Bessel functions of the
    C            third kind of fractional order.
    C***LIBRARY   SLATEC (FNLIB)
    C***CATEGORY  C10B3
    C***TYPE      DOUBLE PRECISION (BESKS-S, DBESKS-D)
    C***KEYWORDS  FNLIB, FRACTIONAL ORDER, MODIFIED BESSEL FUNCTION,
    C             SEQUENCE OF BESSEL FUNCTIONS, SPECIAL FUNCTIONS,
    C             THIRD KIND
    C***AUTHOR  Fullerton, W., (LANL)
    C***DESCRIPTION
    C
    C DBESKS computes a sequence of modified Bessel functions of the third
    C kind of order XNU + I at X, where X .GT. 0, XNU lies in (-1,1),
    C and I = 0, 1, ... , NIN - 1, if NIN is positive and I = 0, 1, ... ,
    C NIN + 1, if NIN is negative.  On return, the vector BK(.) contains
    C the results at X for order starting at XNU.  XNU, X, and BK are
    C double precision.  NIN is an integer.
    C
    C***REFERENCES  (NONE)
    C***ROUTINES CALLED  D1MACH, DBSKES, XERMSG
    C***REVISION HISTORY  (YYMMDD)
    C   770601  DATE WRITTEN
    C   890531  Changed all specific intrinsics to generic.  (WRB)
    C   890831  Modified array declarations.  (WRB)
    C   890831  REVISION DATE from Version 3.2
    C   891214  Prologue converted to Version 4.0 format.  (BAB)
    C   900315  CALLs to XERROR changed to CALLs to XERMSG.  (THJ)
    C***END PROLOGUE  DBESKS