On the Uniformity of the Two Forms of Hamilton's principle for the Nonholonomic System

This paper starts its discussion from Lagrangian function expressed by different variables, and then it goes on to expounds and proves the uniformity of the two forms of Hamilton's principle for nonholonomic mechanical system. It also pats forward a re vision of the expression of Suslough's (Cycлов) form of Hamilton's principle for nonholonomic system and analyzes the nature of relevant controversies.