.Lower

Definition

The .Lower suffix contains the lower bound of a variable. When the property Bounds of a constraint is set, the .Lower suffix contains the minimum 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 .Lower suffix is numeric.

Dimension

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

Note

• When the .lower suffix of a variable is equal to the .upper suffix (see .Upper) of a variable that 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 lower bound of the definition of a variable X use the notation X_definition.Lower.

• 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 .lo.