# No. of a problem
2
# A = 
Matrix: 5 by 3
row 0:              3             -1              2 
row 1:              2             -1            1.2 
row 2:            2.5              1           -1.5 
row 3:              3              1              1 
row 4:             -1              1           -2.2 

# b =
Vector: dim: 5
           5            3            2            4            6