SLATEC Routines --- USRMAT ---

*DECK USRMAT
      SUBROUTINE USRMAT (I, J, AIJ, INDCAT, PRGOPT, DATTRV, IFLAG)
C***BEGIN PROLOGUE  USRMAT
C***SUBSIDIARY
C***PURPOSE  Subsidiary to SPLP
C***LIBRARY   SLATEC
C***TYPE      SINGLE PRECISION (USRMAT-S, DUSRMT-D)
C***AUTHOR  (UNKNOWN)
C***DESCRIPTION
C
C   The user may supply this code
C
C***SEE ALSO  SPLP
C***ROUTINES CALLED  (NONE)
C***REVISION HISTORY  (YYMMDD)
C   811215  DATE WRITTEN
C   891214  Prologue converted to Version 4.0 format.  (BAB)
C   900328  Added TYPE section.  (WRB)
C***END PROLOGUE  USRMAT