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How can I pass a function into a function and find the minimum?

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Dimitra Kyriakouli
Dimitra Kyriakouli le 2 Déc 2019
Clôturé : MATLAB Answer Bot le 20 Août 2021
Hi! I have a problem when trying to minimize a function with fminsearch. I have this function:
function [f] = myfunc(X)
x1 = X(1);
x2 = X(2);
f = 2*x1^2 + 2*x1*x2 + 2*x2^2 - 6*x1;
end
and I want to minimize the f(X+a*grad) where X and grad are known.
I tried this:
[f] = myfunc(@(a) X + a * grad);
a = fminsearch(f,0)
but it doesn't seem to work.
Do you have any suggestions on how to make my code work?
  1 commentaire
Star Strider
Star Strider le 2 Déc 2019
Please describe what you want to do.
the ‘f’ assignment and your fminsearch call make no sense.

Réponses (1)

JESUS DAVID ARIZA ROYETH
JESUS DAVID ARIZA ROYETH le 2 Déc 2019
solution:
f=@(a) myfunc(X + a * grad);
a = fminsearch(f,0)

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