MATLAB Mathematics - SERC - Index of

4 Function Functions
end
function stop = myoutput(x,optimvalues,state);
stop = false;
if state == 'iter'
history = [history; x];
end
end
function z = objfun(x)
z = exp(x(1))*(4*x(1)^2+2*x(2)^2+x(1)*x(2)+2*x(2));
end
3 Save the file as myproblem.m in a directory on the MATLAB path.
4 At the MATLAB prompt, enter
[x fval history] = myproblem([-1 1])
The function fminsearch returns x, the optimal point, and fval, the value of
the objective function at x.
x =
0.1290 -0.5323
fval =
-0.5689
In addition, the output function myoutput returns the matrix history, which
contains the points generated by the algorithm at each iteration, to the
MATLAB workspace. The first four rows of history are
history(1:4,:)
ans =
-1.0000 1.0000
-1.0000 1.0500
-1.0750 0.9000
-1.0125 0.8500
4-18