Help setting time limit on fzero

I need to set a time limit or a max number of iterations on the premade function, fzero.m. Can anyone please help me with this?

Thanks, Eric

Answer 1

[Walter Roberson]

Use optimset() to create a parameters structure that sets an output function. The output function should check the iterations or the time elapsed and return true if the optimization should terminate.

http://www.mathworks.com/help/techdoc/math/bsgpq6p-23.html

[Eric]

Thanks for your help. I've been looking into this, but I can't figure out how to pass the starting time into the output function. Would I put t0=clock; at the top of fzero.m?