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# Copyright (c) P.J.Gawthrop 1991, 1992, 1994, 1995, 1996.
###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.3 1996/08/25 10:07:05 peter
## Remove a du state ment causaing touble
## - but needs more work.
##
## Revision 1.2 1996/08/25 08:38:14 peter
## Error handling added.
##
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# Copyright (c) P.J.Gawthrop 1991, 1992, 1994, 1995, 1996.
###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.4 1998/04/07 05:45:12 peterg
## Reverted to an older version due to untraceable bug in new version
##
## Revision 1.3 1996/08/25 10:07:05 peter
## Remove a du state ment causaing touble
## - but needs more work.
##
## Revision 1.2 1996/08/25 08:38:14 peter
## Error handling added.
##
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MTTGPCNy := 2;
MTTGPCNu := 0;
%%in "$1_sympar.r";
in "$1_ode.r";
%%in "$1_simp.r";
in "$1_obspar.r";
%Create the U vector of input derivatives.
MTTNuu := (MTTGPCNu+1)*MTTNu;
MTTNuu1 := MTTGPCNu*MTTNu;
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MTTGPCNy := 2;
MTTGPCNu := 0;
%%in "$1_sympar.r";
in "$1_ode.r";
%%in "$1_simp.r";
% Read the obs form parameters.
in "$1_obspar.r";
%Create the U vector of input derivatives.
MTTNuu := (MTTGPCNu+1)*MTTNu;
MTTNuu1 := MTTGPCNu*MTTNu;
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MTTYY(i,1) := MTTY(i,1);
END;
l := MTTNy;
FOR i := 1:MTTGPCNy DO
FOR j := 1:MTTNy DO
BEGIN
l := l+1;
MTTYY(l,1) := 0;
FOR k := 1:MTTNx DO %Derivatives wrt x
BEGIN
xk := MTTX(k,1);
MTTYY(l,1) := MTTYY(l,1) + df(MTTYY(l-MTTNy,1), xk, 1)*MTTdX(k,1);
END;
IF MTTGPCNu>0 THEN
FOR k := 1:MTTGPCNu DO %Derivatives wrt u
BEGIN
uk := MTTUU(1,k);
MTTYY(l,1) := MTTYY(l,1) + df(MTTYY(l,1), uk, 1)*MTTUU(1,k+1);
END;
END;
END;
%%Create O_x - derivative of YY wrt x
%Matrix MTTO_x(MTTNyy,MTTNx);
%FOR j := 1:MTTNx DO
% BEGIN
% xj := MTTX(j,1);
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MTTYY(i,1) := MTTY(i,1);
END;
l := MTTNy;
FOR i := 1:MTTGPCNy DO
FOR j := 1:MTTNy DO
BEGIN
l := l+1;
MTTYY(l,1) := 0;
FOR k := 1:MTTNx DO %Derivatives wrt x
BEGIN
xk := MTTX(k,1);
MTTYY(l,1) := MTTYY(l,1) + df(MTTYY(l-MTTNy,1), xk, 1)*MTTdX(k,1);
END;
IF MTTGPCNu>0 THEN
FOR k := 1:MTTGPCNu DO %Non-zero derivatives of u
BEGIN
FOR kk := 1:MTTNu DO
BEGIN
uk := MTTUU(kk,k);
MTTYY(l,1) := MTTYY(l,1) + df(MTTYY(l,1), uk, 1)*MTTUU(1,k+1);
END;
END;
END;
END;
%%Create O_x - derivative of YY wrt x
%Matrix MTTO_x(MTTNyy,MTTNx);
%FOR j := 1:MTTNx DO
% BEGIN
% xj := MTTX(j,1);
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% jk := j+(k-1)*MTTNu;
% MTTO_ux(i,jk) := df(MTTO_u(i,j), xk);
% END;
% END;
% END;
mtt_matrix := MTTYY$
mtt_matrix_n := MTTNy*MTTGPCNy;
mtt_matrix_m := 1;
mtt_matrix_name := "MTTYY"$
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% jk := j+(k-1)*MTTNu;
% MTTO_ux(i,jk) := df(MTTO_u(i,j), xk);
% END;
% END;
% END;
% Try and split the obs function into affine form (O(x,u) = o(x) + h(x)u)
affine := 1;
MTTNuu := (MTTGPCNu+1)*MTTNu;
IF affine=1 THEN
BEGIN
MATRIX MTTObs_o(MTTNyy,1);
MATRIX MTTObs_h(MTTNyy,MTTNuu);
FOR i := 1:MTTNyy DO
BEGIN
MTTObs_o(i,1) := MTTYY(i,1);
FOR j := 1:MTTNuu DO
BEGIN
%Expand as polynomial in uj
coeffs := coeff(MTTObs_o(i,1), MTTu(j,1));
MTTObs_o(i,1) := first(coeffs);
IF length(coeffs)>1 THEN
MTTObs_h(i,j) := second(coeffs);
IF length(coeffs)>2 THEN affine := 0;
END;
END;
END;
%%Create the _obs.r file
OUT "$1_obs.r";
affine := affine;
mtt_matrix := MTTYY$
mtt_matrix_n := MTTNyy$
mtt_matrix_m := 1$
mtt_matrix_name := "MTTYY"$
reduce_matrix();
IF affine=1 THEN
BEGIN
mtt_matrix := MTTObs_o$
mtt_matrix_n := MTTNyy$
mtt_matrix_m := 1$
mtt_matrix_name := "MTTObs_o"$
reduce_matrix();
mtt_matrix := MTTObs_h$
mtt_matrix_n := MTTNyy$
mtt_matrix_m := MTTNuu$
mtt_matrix_name := "MTTObs_h"$
reduce_matrix();
END;
%MTTO_x := MTTO_x;
%MTTO_u := MTTO_u;
%MTTO_uu := MTTO_uu;
%MTTO_ux := MTTO_ux;
write ";END;";
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