how to costrain variables for ga optimization

Hello, I'm perfoming an optimization using the gamultiobj but I'm not able to force my variables to follow the inequalityies :

x1<x2

x3<x4

x5<x6

[Matt J]

What A,b, Aeq, beq did you generate?

Answer 1

[Shashank Prasanna]

A = [1 -1 0  0  0   0 ]
    [0  0 1 -1  0   0 ]
    [0  0 0  0  1  -1 ]
b = zeros(6,1);

Please read this link to understand why:

http://www.mathworks.com/help/optim/ug/writing-constraints.html#brhkghv-14

[andrea84]

Thank you Benji !