When the example was entered, bounds were set specifically only for the variable x1. The bounds can be changed on this or other variables with the bounds option. Again, start by selecting the command and option.

Select the variable by name or number and then select which bound you would like to change. For the example, change the upper bound of variable x2 from + to 50.

Change bounds on which variable: x2
Present bounds on variable x2: The indicated variable is >= 0.
Change lower or upper bound, or both [`l', `u', or `b']: u
Change upper bound to what [`+inf' for no upper bound]: 50
New bounds on variable `x2':  0 <= x2 <= 50