//Check if lower bound is not infinity	

function y=fun(x)
y=x(1)+x(2);
endfunction

x0 = [1,2];
A = [3,4];
b = [7];
Aeq = [];
beq = [];
lb = [%inf,4];
ub = [];
intcon=[1,2];

options=list("MaxIter", [1500], "CpuTime", [500], "Gradient", "OFF", "Hessian", "OFF");

// MINLP Error.

[x0pt,fopt,exitflag,gradient,hessian] = intfmincon(fun,x0,intcon, A, b, Aeq, beq, lb, ub);