The difference between state control and edge control in mathematical module is that state control pays more attention to the state variables and state transition equations in the system, while edge control pays more attention to the boundary conditions and interface of the system. State control means to realize control by changing the state of the system. Specifically, state control takes the state variables of the system as input and adjusts the behavior of the system according to the state equation or state transfer function of the system. By observing the state changes of the system and making corresponding adjustments, the control of the system can be realized. Edge control is achieved by controlling the boundary conditions of the system. In edge control, we pay attention to the boundary or interface of the system and influence the behavior of the system by changing these boundary conditions. By adjusting the boundary conditions, the input or response of the system can be changed, thus realizing the control of the system. Generally speaking, state control pays more attention to the state variables and state transition equations in the system, and realizes control by changing the state of the system; Edge control pays more attention to the boundary conditions and interface of the system, and realizes control by changing the boundary conditions. These two control strategies have different applicability and characteristics in different application fields and problems.