can fzero be used to find the minimum ?

Can fzero command be used to find the minimum of a function or a curve ? as in if i want to plot a function over a period and also want to find the minimum, is fzero command the best option and if so, how do i use it to find the minimum ?

Answer 1

[Kye Taylor]

Do you have the optimization toolbox?

To start you can begin with the fminbnd function. For example, say your function is g(x) = -x^2*exp(-x) for 0<x<10. You can find the minimum of the function on the specified interval using the commands

% define a function handle
g = @(x) -x.^2.*exp(-x); 

% find minimum on specified interval
[xMin,fVal] = fminbnd(g,0,10);

% visualize
t = linspace(0,10);
plot(t,g(t),xMin,fVal,'ro')

[Naveen Ramesh]

thanks a lot kye ..!!!

Answer 2

[Matt J]

Use FMINSEARCH or FMINBND instead.