SLATEC Routines --- SDPST ---

*DECK SDPST
      SUBROUTINE SDPST (EL, F, FA, H, IMPL, JACOBN, MATDIM, MITER, ML,
     8   MU, N, NDE, NQ, SAVE2, T, USERS, Y, YH, YWT, UROUND, NFE, NJE,
     8   A, DFDY, FAC, IER, IPVT, SAVE1, ISWFLG, BND, JSTATE)
C***BEGIN PROLOGUE  SDPST
C***SUBSIDIARY
C***PURPOSE  Subroutine SDPST evaluates the Jacobian matrix of the right
C            hand side of the differential equations.
C***LIBRARY   SLATEC (SDRIVE)
C***TYPE      SINGLE PRECISION (SDPST-S, DDPST-D, CDPST-C)
C***AUTHOR  Kahaner, D. K., (NIST)
C             National Institute of Standards and Technology
C             Gaithersburg, MD  20899
C           Sutherland, C. D., (LANL)
C             Mail Stop D466
C             Los Alamos National Laboratory
C             Los Alamos, NM  87545
C***DESCRIPTION
C
C  If MITER is 1, 2, 4, or 5, the matrix
C  P = I - L(0)*H*Jacobian is stored in DFDY and subjected to LU
C  decomposition, with the results also stored in DFDY.
C***ROUTINES CALLED  SGBFA, SGEFA, SNRM2
C***REVISION HISTORY  (YYMMDD)
C   790601  DATE WRITTEN
C   900329  Initial submission to SLATEC.
C***END PROLOGUE  SDPST