.Upper

Definition

The .Upper suffix contains the upper bound of a variable. When the property Bounds of a constraint is set, the .Upper suffix contains the maximum value the left hand side of the constraint may attain. Note that for a >= constraint this value is INF. This value is set at the end of the generation step by AIMMS.

Datatype

The value of the .Upper suffix is numeric.

Dimension

The .Upper suffix has the same dimension and domain as that of the constraint or variable at hand.

Note

• When the .Lower suffix (see .Lower) of a variable is equal to the .Upper suffix of that variable this variable is treated as a frozen variable and subsequently removed from the generated mathematical program independently from the setting of the .nonvar suffix (see Variable Declaration and Attributes).

• In order to access the upper bound of the definition of a variable X use the notation X_definition.Upper.

• See also Sections Variable Declaration and Attributes and Constraint Levels, Bounds and Marginals of the Language Reference.

• The GAMS and AIMMS 2 equivalent suffix name is .up.