Solution vector for the equations:
    -2.333333    0.200000   -0.333333    0.733333    2.733333

 Solution vector with noise added:
    -2.439686    0.202977   -0.363376    0.741637    3.114313

 Solution vector recovered by MPROVE:
    -2.333333    0.200000   -0.333333    0.733333    2.733333