SLATEC Routines --- DPLPFE ---

*DECK DPLPFE
      SUBROUTINE DPLPFE (MRELAS, NVARS, LMX, LBM, IENTER, IBASIS, IMAT,
     +   IBRC, IPR, IWR, IND, IBB, ERDNRM, EPS, GG, DULNRM, DIRNRM,
     +   AMAT, BASMAT, CSC, WR, WW, BL, BU, RZ, RG, COLNRM, DUALS,
     +   FOUND)
C***BEGIN PROLOGUE  DPLPFE
C***SUBSIDIARY
C***PURPOSE  Subsidiary to DSPLP
C***LIBRARY   SLATEC
C***TYPE      DOUBLE PRECISION (SPLPFE-S, DPLPFE-D)
C***AUTHOR  (UNKNOWN)
C***DESCRIPTION
C
C     THE EDITING REQUIRED TO CONVERT THIS SUBROUTINE FROM SINGLE TO
C     DOUBLE PRECISION INVOLVES THE FOLLOWING CHARACTER STRING CHANGES.
C
C     USE AN EDITING COMMAND (CHANGE) /STRING-1/(TO)STRING-2/.
C     /REAL (12 BLANKS)/DOUBLE PRECISION/,/SASUM/DASUM/,
C     /SCOPY/DCOPY/.
C
C     THIS SUBPROGRAM IS PART OF THE DSPLP( ) PACKAGE.
C     IT IMPLEMENTS THE PROCEDURE (FIND VARIABLE TO ENTER BASIS
C     AND GET SEARCH DIRECTION).
C     REVISED 811130-1100
C     REVISED YYMMDD-HHMM
C
C***SEE ALSO  DSPLP
C***ROUTINES CALLED  DASUM, DCOPY, DPRWPG, IDLOC, LA05BD
C***REVISION HISTORY  (YYMMDD)
C   811215  DATE WRITTEN
C   890531  Changed all specific intrinsics to generic.  (WRB)
C   890605  Removed unreferenced labels.  (WRB)
C   890606  Changed references from IPLOC to IDLOC.  (WRB)
C   891214  Prologue converted to Version 4.0 format.  (BAB)
C   900328  Added TYPE section.  (WRB)
C***END PROLOGUE  DPLPFE