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    %% Obtain All Information
% Return all information about the |fminbnd| solution process by requesting
% all outputs. Also, monitor the solution process using a plot function.
fun = @sin;
x1 = 0;
x2 = 2*pi;
options = optimset('PlotFcns',@optimplotfval);
[x,fval,exitflag,output] = fminbnd(fun,x1,x2,options)