Dakota Reference Manual
Version 6.12
Explore and Predict with Confidence

Define coefficients of the linear equalities
This keyword is related to the topics:
Alias: none
Argument(s): REALLIST
Default: no linear equality constraints
In the equality case, the constraint matrix provides coefficients for the variables on the left hand side of:
The linear_constraints topics page (linked above) outlines a few additional things to consider when using linear constraints.
An optimization involving three variables, x1
, x2
, and x3
, is to be performed. These variables must satisfy a pair of linear equality constraints:
The pair of constraints can be written in matrix form as:
The coefficient matrix and right hand side are expressed to Dakota in the variables section of the input file:
variables continuous_design 2 descriptors 'x1' 'x2' linear_equality_constraint_matrix = 1.5 1.0 0.0 3.0 0.0 4.0 linear_equality_targets = 5.0 0.0
For related examples, see the linear_inequality_constraint_matrix keyword page.