operator -

Create a new expression by subtracting one Gurobi object from another.

GRBLinExpr operator - ( GRBLinExpr expr1,
    GRBLinExpr expr2 )
    Arguments:

    expr1: First linear expression argument.

    expr2: Second linear expression argument.

    Return value:

    A linear expression that is equal to the first expression minus the second.

GRBQuadExpr operator - ( GRBQuadExpr expr1,
    GRBQuadExpr expr2 )
    Arguments:

    expr1: First quadratic expression argument.

    expr2: Second quadratic expression argument.

    Return value:

    A quadratic expression that is equal to the first expression minus the second.

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