There is no added value when using NDcost, you can directly use
numderivative like this
function [f,g,ind]=costf(p,ind)
f=norm(fun(p))^2;
g=2*numderivative(fun,p)'*fun(p);
endfunction
S.
Le 08/01/2020 à 16:45, David Brant a écrit :
Many thanks Stéphane.
Is it also possible to do this if the gradient is not known or impractical
to obtain using NDcost as i had intended with something like
[fopt,popt,gopt]=optim(list(NDcost,fun),p0') ?
Regards, Dave
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Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet
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