steplength_to_boundary
Controls how close to the boundary of the feasible region the algorithm is allowed to move
Specification
Alias: None
Arguments: REAL
Default: Merit function dependent: 0.8 (el_bakry), 0.99995 (argaez_tapia), 0.95 (van_shanno)
Description
The steplength_to_boundary specification is a parameter (between 0
and 1) that controls how close to the boundary of the feasible region
the algorithm is allowed to move. A value of 1 means that the
algorithm is allowed to take steps that may reach the boundary of the
feasible region. If the user wishes to maintain strict feasibility of
the design parameters this value should be less than 1. Default values
are .8, .99995, and .95 for the el_bakry, argaez_tapia, and
van_shanno merit functions, respectively.
