# Copyright (c) P.J.Gawthrop 1991, 1992, 1994.

###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.15.2.3  2001/05/09 00:19:22  geraint
## Fixed EOF error when MTTNYZ=0.
##
## Revision 1.15.2.2  2001/05/05 20:50:16  geraint
## Fixed errors when MTTNx=0.
##
## Revision 1.15.2.1  2001/05/04 04:07:24  geraint
## Numerical solution of algebraic equations.
## sys_ae.cc written for unsolved inputs.
## Solution of equations using hybrd from MINPACK (as used by Octave fsolve).
##
## Revision 1.15  2001/03/19 02:28:52  geraint
## Branch merge: merging-ode2odes-exe back to MAIN.
##
## Revision 1.14.2.1  2001/03/19 00:29:08  geraint
## Parse switches (-A) before calling def2write_r.
## Update $1_def.* instead of removing.
##
## Revision 1.14  2000/12/28 12:24:35  peterg
## *** empty log message ***
##

  BEGIN
    MTT_sol_i := first(MTT_sol); MTT_sol := rest(MTT_sol);
    set(lhs(MTT_sol_i),rhs(MTT_sol_i));
  END;

  % No algebraic variables left!
  MTTNYz := 0;
END; % IF MTTNyz>0
END; % IF MTTNyz>0 and $solve

OUT "$1_ae.r";
IF (MTTNyz>0) THEN % not $solve (or perhaps solution failed?)
BEGIN
    WRITE "MATRIX MTTyz(",MTTNyz,",1)";
    WRITE "%File: $1_ae.r";
    FOR i := 1:MTTNyz DO
	WRITE "MTTyz(",i,",1) := ",MTTyz(i,1);
END; % if MTTNyz>0 (and !$solve)
WRITE ";END;";
SHUT "$1_ae.r";

OUT "$1_aej.r";
IF (MTTNyz>0) THEN % as above
BEGIN
    WRITE "MATRIX MTTyzj(",MTTNyz,",",MTTNyz,")";
    WRITE "%File: $1_aej.r";
    FOR i := 1:MTTNyz DO
	FOR j := 1:MTTNyz DO
	BEGIN
	   didj := df(MTTyz(i,1),mkid('mttui,j));
	   IF (didj NEQ 0) THEN
	      WRITE "MTTyzj(",i,",",j,") := ",didj;
	END;
END;
WRITE ";END;";
SHUT "$1_aej.r";

% Create the matrix declarations
OUT "$1_cse.r1";
write "%";
IF (MTTNx > 0) THEN
BEGIN
write "MATRIX MTTEdx(", MTTNx, ",", 1, ")$"; 
write "MATRIX MTTE(", MTTNx, ",", MTTNx, ")$"; 
    write "MATRIX MTTEdx(", MTTNx, ",", 1, ")$"; 
    write "MATRIX MTTE(", MTTNx, ",", MTTNx, ")$"; 
END;
SHUT "$1_cse.r1";

OUT "$1_csex.r1";
write "%File:$1_csex.r1";
IF (MTTNx > 0) THEN
write "MATRIX MTTEdx(", MTTNx, ",", 1, ")$"; 
    write "MATRIX MTTEdx(", MTTNx, ",", 1, ")$"; 
SHUT "$1_csex.r1";

IF MTTNy>0 THEN
BEGIN
  OUT "$1_cseo.r1";
  write "MATRIX MTTY(", MTTNy, ",", MTTNx, ")$"; 
  write "MATRIX MTTY(", MTTNy, ",", 1, ")$"; 
  SHUT "$1_cseo.r1";
END;

%%Create the _cse.r file
OUT "$1_cse.r2";
write "%File: $1_cse.r";
in ("$1_cse_write.r");