After the model has been fully or partially built by calling functions of the NAG optimization modelling suite, e04tdc
may be used to define a new lower bound,
, and an upper bound
, of a single constraint identified by the component type comp
together with the appropriate component index
given in idx
. Note that both upper and lower bounds need to be specified. This form allows full generality in specifying various types of constraint. In particular, the model component may be set as an equality by setting
(e.g., to fix a variable). If certain bounds are not present, the associated value
may be set to special values that are treated as
. See the description of the optional parameter
which is common among all solvers in the suite. Its value is denoted as
further in this text. Note that the bounds are interpreted based on its value at the time of calling this function and any later alterations to
will not affect these constraints.
See Section 4.1
in the E04
Chapter Introduction for more details about the NAG optimization modelling suite.