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# Copyright (c) P.J.Gawthrop 1997.

###############################################################
## Version control history
###############################################################
## $Id$
## $Log$



# Revision 1.4  1997/05/01  13:43:44  peterg
# Changed double to float.
#
# Revision 1.3  1997/05/01  11:15:33  peterg
# Back under RCS
#
# Revision 1.2  1997/03/20  14:36:56  peterg







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# Copyright (c) P.J.Gawthrop 1997.

###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
# Revision 1.5  1997/05/01  13:50:11  peterg
# Replaced float by double.
#
# Revision 1.4  1997/05/01  13:43:44  peterg
# Changed double to float.
#
# Revision 1.3  1997/05/01  11:15:33  peterg
# Back under RCS
#
# Revision 1.2  1997/03/20  14:36:56  peterg
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write "File $1_odes.c"$
write "Generated by MTT"$
write "*/"$
write " "$


%Program heading










write "#include <stdio.h>"$
write "#include ""$1_odes.h"" "$




%External (global) variable list
write "#include ""$1_sympar.h"" "$


write "/* Declare standard arrays */"$
write "double y[", MTTNy+1, "]; /* $1_ode output */"$
write "double dx[", MTTNx+1, "]; /* $1_ode state derivative */"$ 
write "double x[", MTTNx+1, "]; /* $1_ode state */"$ 
write "double u[", MTTNu+1, "]; /* $1_ode input */"$


write "/* Files */ "$
write "  FILE *fopen(), *fps, *fpso;"$

write "main()"$
write "  "$







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write "File $1_odes.c"$
write "Generated by MTT"$
write "*/"$
write " "$


%Program heading
write "#define MTTNX ", MTTNx $
write "#define MTTNY ", MTTNy $
write "#define MTTNU ", MTTNu $
write "#define MTTNX1 ", MTTNx+1 $
write "#define MTTNY1 ", MTTNy+1 $
write "#define MTTNU1 ", MTTNu+1 $
write "#define MTTNX2 ", MTTNx+2 $
write "#define MTTNY2 ", MTTNy+2 $
write "#define MTTNU2 ", MTTNu+2 $

write "#include <stdio.h>"$
write "#include ""$1_odes.h"" "$
write "#include ""$1_ode.c"" "$
write "#include ""$1_input.c"" "$
write "#include ""$1_numpar.c"" "$

%External (global) variable list
write "#include ""$1_sympar.h"" "$


write "/* Declare standard arrays */"$
write "double y[MTTNY1]; /* $1_ode output */"$
write "double dx[MTTNX1]; /* $1_ode state derivative */"$ 
write "double x[MTTNX1]; /* $1_ode state */"$ 
write "double u[MTTNU1]; /* $1_ode input */"$


write "/* Files */ "$
write "  FILE *fopen(), *fps, *fpso;"$

write "main()"$
write "  "$
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write "/* Set up user-defined constants */"$
write "  $1_numpar();"$

%Initialise main (Euler) integration loop
write "/* Initialise main (Euler) integration loop */"$
write "  time = 0;"$
write "  dt = DT/STEPFACTOR;"$
write "  for (i=1; i<=", MTTNx, "; i++)"$
write "      x[i] = 0.0;"$

%Set up system inputs
write "/* Set up system inputs */"$
write "  for (i=1; i<=", MTTNu, "; i++)"$
write "      u[i] = 1.0;"$








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write "/* Set up user-defined constants */"$
write "  $1_numpar();"$

%Initialise main (Euler) integration loop
write "/* Initialise main (Euler) integration loop */"$
write "  time = 0;"$
write "  dt = DT/STEPFACTOR;"$
write "  for (i=1; i<=MTTNX; i++)"$
write "      x[i] = 0.0;"$

%Set up system inputs
write "/* Set up system inputs */"$
write "  for (i=1; i<=", MTTNu, "; i++)"$
write "      u[i] = 1.0;"$

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write "  while (time<LAST)"$
write "  {"$

%Write to output to file
write "/* Write to output file */"$
write "    fprintf(fpso, ""%5.4f "",time);"$
write "    for (i=1; i<=", MTTNy, "; i++)"$
write "      fprintf(fpso, ""%5.4f "", y[i]);"$
write "    fprintf(fpso, ""\n"");"$

%Write to state to file
write "/* Write to state file */"$
write "    fprintf(fps, ""%5.4f "",time);"$
write "    for (i=1; i<=", MTTNx, "; i++)"$
write "      fprintf(fps, ""%5.4f "", x[i]);"$
write "    fprintf(fps, ""\n"");"$

% Inner integration loop
write "/* Inner integration loop */"$
write "    for (k=1; k<=STEPFACTOR; k++)"$
write "    {"$
%Set up system inputs
write "      /* Set up system inputs */"$
write "      $1_input(time);"$
write "      for (i=1; i<=", MTTNx, "; i++)"$
write "        x[i] = x[i] + dx[i]*dt;"$
write "      $1_ode();"$
write "      time = time + dt;"$

write "    }"$

write "  }"$

%Write to files
%Write to output to file
write "/* Write to output file */"$
write "    fprintf(fpso, ""%5.4f "",time);"$
write "    for (i=1; i<=", MTTNy, "; i++)"$
write "      fprintf(fpso, ""%5.4f "", y[i]);"$
write "    fprintf(fpso, ""\n"");"$

%Write to state to file
write "/* Write to state file */"$
write "    fprintf(fps, ""%5.4f "",time);"$
write "    for (i=1; i<=", MTTNx, "; i++)"$
write "      fprintf(fps, ""%5.4f "", x[i]);"$
write "    fprintf(fps, ""\n"");"$


write "  fprintf(fps, ""];\n"");"$
write "  fprintf(fpso, ""];\n"");"$








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write "  while (time<LAST)"$
write "  {"$

%Write to output to file
write "/* Write to output file */"$
write "    fprintf(fpso, ""%5.4f "",time);"$
write "    for (i=1; i<=MTTNY; i++)"$
write "      fprintf(fpso, ""%5.4f "", y[i]);"$
write "    fprintf(fpso, ""\n"");"$

%Write to state to file
write "/* Write to state file */"$
write "    fprintf(fps, ""%5.4f "",time);"$
write "    for (i=1; i<=MTTNX; i++)"$
write "      fprintf(fps, ""%5.4f "", x[i]);"$
write "    fprintf(fps, ""\n"");"$

% Inner integration loop
write "/* Inner integration loop */"$
write "    for (k=1; k<=STEPFACTOR; k++)"$
write "    {"$
%Set up system inputs
write "      /* Set up system inputs */"$
write "      $1_input(time);"$
write "      for (i=1; i<=MTTNX; i++)"$
write "        x[i] = x[i] + dx[i]*dt;"$
write "      $1_ode();"$
write "      time = time + dt;"$

write "    }"$

write "  }"$

%Write to files
%Write to output to file
write "/* Write to output file */"$
write "    fprintf(fpso, ""%5.4f "",time);"$
write "    for (i=1; i<=MTTNY; i++)"$
write "      fprintf(fpso, ""%5.4f "", y[i]);"$
write "    fprintf(fpso, ""\n"");"$

%Write to state to file
write "/* Write to state file */"$
write "    fprintf(fps, ""%5.4f "",time);"$
write "    for (i=1; i<=MTTNX; i++)"$
write "      fprintf(fps, ""%5.4f "", x[i]);"$
write "    fprintf(fps, ""\n"");"$


write "  fprintf(fps, ""];\n"");"$
write "  fprintf(fpso, ""];\n"");"$


MTT: Model Transformation Tools
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