lem of inequality rest rict ion is t ran sfo rm ed to non rest ra in t op t im izsa t ion p rob lem. T hen, the pow er funct ion to so lve the p rob lem w ith Hopfield neu ra l netw o rk s is fo rm ed. Secondly, the differen t ia l e2 quat ion group of dynam ic system is ob ta ined. T h ird ly, the differen t ia l equat ion group is so lved w ith the m ethod of num eral ca lcu la t ion. T he at ta