• $MechVariables returns a list of the names of all of the user variables that are present in the current model. Changes in the values of these variables affect the model.
• The names returned by $MechVariables represent all of the symbols that have been recognized by the Mech variable management scheme.
• Variables that are not listed by $MechVariables are not made local when Mech generates constraint and load equations, thus any assignments for such variables become embedded in new internal expressions as they are generated.
• See also: BuildMech.