Remove a quadratic term from a quadratic expression.

void remove ( int i )

Remove the quadratic term stored at index i of the expression.


i: The index of the term to be removed.

boolean remove ( GRBVar var )

Remove all quadratic terms associated with variable var from the quadratic expression.


var: The variable whose term should be removed.

Return value:

Returns true if the variable appeared in the quadratic expression (and was removed).