Dakota Reference Manual
Version 6.4
LargeScale Engineering Optimization and Uncertainty Analysis

Define upper bounds for the linear inequality constraint
This keyword is related to the topics:
Alias: none
Argument(s): REALLIST
Default: vector values = 0 .
In the inequality case, the lower and upper bounds provide constraint limits for the twosided formulation:
Where is the constrain matrix of variable coefficients.
As with nonlinear inequality constraints (see objective_functions), the default linear inequality constraint bounds are selected so that onesided inequalities of the form
result when there are no user bounds specifications (this provides backwards compatibility with previous Dakota versions).
In a user bounds specification, any upper bound values greater than +bigRealBoundSize
(1.e+30, as defined in Minimizer) are treated as +infinity and any lower bound values less than bigRealBoundSize
are treated as infinity.
This feature is commonly used to drop one of the bounds in order to specify a 1sided constraint (just as the default lower bounds drop out since DBL_MAX
< bigRealBoundSize
).