In the paper, a manner of conditional optimization of a certain quadratic usability function of n variables is presented. At the same time, an equation is given that renders in each case the calculation of largest usability value (and the sole one) possible, with the assumption that a condition limiting the budget is of linear character.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.