Tolerances in symbolic network analysis

Tolerances of electronic circuit parameters play an important role in our judgement of circuit functionality. They must be considered both at the circuit design and testing stages. A problem of tolerances in a symbolic network analysis is discussed. Topological analysis combined with operations on discrete random variables allows the behavior of a circuit with toleranced parameters to be predicted. Automatic simplification of symbolic network functions is used to facilitate operations on discrete variables representing network parameters. Illustrative examples are given