If you have Optimization Toolbox, use fmincon on -F(x,y,z) = -F(t), where t = [x,y,z]. If you just want to make a grid of points and look at the maximum on the grid:
xgrid = linspace(Amin,Amax); % gives 100 values, change if you like
ygrid = linspace(Bmin,Bmax);
zgrid = linspace(Cmin,Cmax);
% biggrid = ndgrid(xgrid,ygrid,zgrid); % for a vectorized F
% Fvals = F(biggrid); % this works is F is vectorized. Otherwise:
Fvals = zeros(100,100,100);
for x = 1:100
for y = 1:100
for z = 1:100
Fvals(x,y,z) = F(xgrid(x),ygrid(y),zgrid(z));
end
end
end
Alan Weiss
MATLAB mathematical toolbox documentation
