Date: Dec 30, 2012 6:40 AM
Author: Emrah
Subject: how to plot a function subject to constraints.
I have this function:

function f=cost(x)

f=1.10471*x(1)^2*x(2)+0.04811*x(3)*x(4)*(14.0+x(2));

subject to

g(1)=tau-tau_max;

g(2)=sigma-sigma_max;

g(3)=x(1)-x(4);

g(4)=0.10471*x(1)^2+0.04811*x(3)*x(4)*(14+x(2))-5.0;

g(5)=0.125-x(1);

g(6)=delta-delta_max;

g(7)=P-PcX;

all g[1..7] should be <= 0

I have to keep any two of them as a constant and plot the f(x) The upper and lower bounds are respectively (x1..x4)

LowerBound=[0.125 0.1 0.1 0.125];

UpperBound=[5.0 10.0 10.0 5.0];

thanks in advance...