How can one write a program to do this? (fminbnd)

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alpedhuez
alpedhuez le 5 Août 2020
Commenté : alpedhuez le 5 Août 2020
I define a function
function out = test(x)
y=x^2;
z=y+1;
out=z
end
Then I run
fminbnd(@(x) test(x),0,1)
This will return the value of x that maxes test(x). But I also want to output y at that optimal. How can one do this?

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Alan Weiss
Alan Weiss le 5 Août 2020
Modifié(e) : Alan Weiss le 5 Août 2020
You can get the value of out = z simply by asking for it:
[xbest,out] = fminbnd(@(x) test(x),0,1)
Alan Weiss
MATLAB mathematical toolbox documentation
  4 commentaires
Steven Lord
Steven Lord le 5 Août 2020
Define your test function to return two outputs, out and y. fminbnd will only ever call your function with one output. After fminbnd returns the "best x" call test with that best x as the input and two outputs.
alpedhuez
alpedhuez le 5 Août 2020
using breakpoints now.

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