Looping question

Hi, I have a question regarding using loop for a function file. For example, let func represent a function file, where f = x^2 - 1 and f is the output argument and x is the input argument.

Now, my x = 1:100. and now for i = 1:100 z(i) = func(x(i)); end

f_n = min(f).

My question: Is there a way where I can identify the particular x for which f_n is giving out the value for?

Thanks, Mahesh Ramaraj.

Answer 1

[Sean de Wolski]

No reason for loops!

 x = 1:100; %x vector
 func = @(x)x.^2-1; %function to apply
 [the_min, idx] = min(func(x)); %find the minimum and index of minimum
 min_x = x(idx); %extract x corresponding to the minimum of f(x)

[Mahesh Ramaraj]

Thanks a lot...it worked like a charm....