> Tutorials > Interactive Optimizer Tutorial > Changing a Problem

The enter and add commands allow you to build a problem from the keyboard, but they do not allow you to change what you have built. You make changes with the change command.

The change command can be used for:

Start out by changing the name of the constraint that you added with the add command. In order to see a list of change options, type:

change

The elements that can be changed are displayed like this:

Change options:

bounds           change bounds on a variable
coefficient      change a coefficient
delete           delete some part of the problem
name             change a constraint or variable name
objective        change objective function value
problem          change problem type
qpterm           change a quadratic objective term
rhs              change a right-hand side or network supply/demand value
sense            change objective function or a constraint sense
type             change variable type

Change to make: