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+ //Dual Infeasible Problem
+ c=[3,5,-7]'
+ A=[-1,-1,4;1,1,4]
+ b=[-8,5]
+ Aeq=[]
+ beq=[]
+ lb=[-%inf,-%inf,-%inf]
+ ub=[%inf,%inf,%inf]
+ //Output
+ // Dual Infeasible.
+ // lambda =
+ //
+ // reduced_cost: [0,2,0]
+ // ineqlin: [-2.375,0.625]
+ // eqlin: [0x0 constant]
+ // output =
+ //
+ // Iterations: 2
+ // constrviolation: 0
+ // exitflag =
+ //
+ // 2.
+ // fopt =
+ //
+ // 22.125
+ // xopt =
+ //
+ // 6.5
+ // 0.
+ // - 0.375
+ [xopt,fopt,exitflag,output,lambda]= linprog(c,A,b,Aeq,beq,lb,ub)