dxqmu.f

      SUBROUTINE DXQMU (NU1, NU2, MU1, MU2, THETA, X, SX, ID, PQA, IPQA,
     1   IERROR)
C***BEGIN PROLOGUE  DXQMU
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Warning:   this routine is not intended to be user-callable.
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C***SUBSIDIARY
C***PURPOSE  To compute the values of Legendre functions for DXLEGF.
C            Method: forward mu-wise recurrence for Q(MU,NU,X) for fixed
C            nu to obtain Q(MU1,NU,X), Q(MU1+1,NU,X), ..., Q(MU2,NU,X).
C***LIBRARY   SLATEC
C***CATEGORY  C3A2, C9
C***TYPE      DOUBLE PRECISION (XQMU-S, DXQMU-D)
C***KEYWORDS  LEGENDRE FUNCTIONS
C***AUTHOR  Smith, John M., (NBS and George Mason University)
C***ROUTINES CALLED  DXADD, DXADJ, DXPQNU
C***REVISION HISTORY  (YYMMDD)
C   820728  DATE WRITTEN
C   890126  Revised to meet SLATEC CML recommendations.  (DWL and JMS)
C   901019  Revisions to prologue.  (DWL and WRB)
C   901106  Corrected order of sections in prologue and added TYPE
C           section.  (WRB)
C   920127  Revised PURPOSE section of prologue.  (DWL)
C***END PROLOGUE  DXQMU