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+// Example with objective function and inequality constraints
+function y=fun(x)
+ y=sum(1/exp(x))
+endfunction
+
+x0 = [repmat(1,1,3)];
+A=[-1,-5,-3;];
+b=[-100];
+lb = repmat(0,1,3);
+
+//Nonlinear constraints
+function [c,ceq]=nlc(x)
+ c = [ sum(log(x)) - 10];
+ ceq = [];
+endfunction
+
+[xopt,fopt,exitflag,output,lambda,gradient,hessian] = fmincon (fun, x0,A,b,[],[],lb,[],nlc)