The current algorithmic scope of mathematical programming systems -- Partially normalized pivot selection in linear programming -- An exact update for Harrisโ{128}{153} TREAD -- Pivot selection methods of the Devex LP code -- A synthesis of compact-inverse methods for block-angular linear programming problems -- Factoring LP block-angular bases -- A development of the product form algorithm for the simplex method using reduced transformation vectors -- Multiple pricing and suboptimization in dual linear programming algorithms -- Implicit representation of variable upper bounds in linear programming -- A simulation study of the error produced by approximation in separable concave programming -- An accuracy test for updating triangular factors -- On scaling linear programming problems