Symbolic analysis of mixed continuous and sampled-data systems

A computer program capable of generating the input-output relationship in a symbolic form between the initial node and the last node of the signal flow graph representing a given block diagram of mixed continuous and sampled-data systems is presented. The system is given as an interconnection of continuous and discrete subsystems and synchronous samplers. The computer program can generate the transfer function H(z) if both the input and output are sampled, or an expression for the continuous output if the input is not sampled.<>