Overview
Comment:No longer uses df() if corresponding sensitivity parameter is 0.
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SHA3-256: 5a21db69e75fbeb3493296c2c17514f695a6e136272fcc8309249042ac22e11b
User & Date: gawthrop@users.sourceforge.net on 2002-05-17 11:17:35
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Context
2002-05-19
13:01:22
Numerical solution of algebraic equations implemented for S-function target.

Equation solving requires the Matlab Optimization Toolbox to be installed.

Code has been changed from C++ to C to allow mex files to be built with LCC,
the compiler bundled with Matlab.

Parameters are now obtained from numpar.c instead of a dialogue box.

`mtt <sys> sfun zip` creates all necessary files for building the model mex files. check-in: 97bf211b88 user: geraint@users.sourceforge.net tags: origin/master, trunk

2002-05-17
11:17:35
No longer uses df() if corresponding sensitivity parameter is 0. check-in: 5a21db69e7 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
11:15:38
Messages about copying when using -dr now only appear in verbose (-v) mode. check-in: d41c582b2d user: gawthrop@users.sourceforge.net tags: origin/master, trunk
Changes
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Modified mttroot/mtt/lib/cr/r/slin.cr from [d6c337d46d] to [5d71e66c46]. 

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%DESCRIPTION Sensitivity version of lin



% One port version for historical reasons
OPERATOR slin;
FOR ALL gain_causality, gain, causality, input, other_causality
LET slin(gain_causality, gain, other_causality, 1, input, causality, 1)
         = lin(gain_causality, gain, other_causality, 1, input,
	 causality, 1);


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%DESCRIPTION Sensitivity version of lin

in "$MTT_CRS/r/lin.cr";

% One port version for historical reasons
OPERATOR slin;
FOR ALL gain_causality, gain, causality, input, other_causality
LET slin(gain_causality, gain, other_causality, 1, input, causality, 1)
         = lin(gain_causality, gain, other_causality, 1, input,
	 causality, 1);
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       sinput, causality, 2)
         = lin(gain_causality, gain, other_causality, 1, 
               input, causality, 1); 


% Port 2 - sensitivity
FOR ALL gain_causality, gain, sgain, causality, input, sinput, other_causality

LET slin(gain_causality, gain, sgain, other_causality, 2, 
       input, causality, 1,
       sinput, causality, 2)
         = lin(gain_causality, gain, other_causality, 1, 
               sinput, causality, 1)
         + sgain*df(lin(gain_causality, gain, other_causality, 1, 
               input, causality, 1), gain); 










END;;









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       sinput, causality, 2)
         = lin(gain_causality, gain, other_causality, 1, 
               input, causality, 1); 


% Port 2 - sensitivity
FOR ALL gain_causality, gain, sgain, causality, input, sinput, other_causality
SUCH THAT sgain NEQ 0
LET slin(gain_causality, gain, sgain, other_causality, 2, 
       input, causality, 1,
       sinput, causality, 2)
         = lin(gain_causality, gain, other_causality, 1, 
               sinput, causality, 1)
         + sgain*df(lin(gain_causality, gain, other_causality, 1, 
               input, causality, 1), gain); 

%% Don't compute the derivative in this case
FOR ALL gain_causality, gain, sgain, causality, input, sinput, other_causality
SUCH THAT sgain EQ 0
LET slin(gain_causality, gain, sgain, other_causality, 2, 
       input, causality, 1,
       sinput, causality, 2)
         = lin(gain_causality, gain, other_causality, 1, 
               sinput, causality, 1);
         
END;;

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