SLATEC Routines --- CACON ---

*DECK CACON
      SUBROUTINE CACON (Z, FNU, KODE, MR, N, Y, NZ, RL, FNUL, TOL, ELIM,
     +   ALIM)
C***BEGIN PROLOGUE  CACON
C***SUBSIDIARY
C***PURPOSE  Subsidiary to CBESH and CBESK
C***LIBRARY   SLATEC
C***TYPE      ALL (CACON-A, ZACON-A)
C***AUTHOR  Amos, D. E., (SNL)
C***DESCRIPTION
C
C     CACON APPLIES THE ANALYTIC CONTINUATION FORMULA
C
C         K(FNU,ZN*EXP(MP))=K(FNU,ZN)*EXP(-MP*FNU) - MP*I(FNU,ZN)
C                 MP=PI*MR*CMPLX(0.0,1.0)
C
C     TO CONTINUE THE K FUNCTION FROM THE RIGHT HALF TO THE LEFT
C     HALF Z PLANE
C
C***SEE ALSO  CBESH, CBESK
C***ROUTINES CALLED  CBINU, CBKNU, CS1S2, R1MACH
C***REVISION HISTORY  (YYMMDD)
C   830501  DATE WRITTEN
C   910415  Prologue converted to Version 4.0 format.  (BAB)
C***END PROLOGUE  CACON