In this paper, using the generalized coordinate and Dirac notation, we develop a new differential equation of motion for classical dynamics. Same examples are given to illustrate the large scale of important applications of the equation

• 讨论Dirac符号在经典力学中的应用,给出一种用广义坐标和Dirac符号表述的动力学方程,并举例说明该方程的广 泛应用。