SAPEC - a personal computer program for the symbolic analysis of electric circuits

A personal computer program for the symbolic analysis of lumped, linear, time-invariant networks is presented. The program, written in Microsoft Lisp, utilizes methods of symbolic manipulation of algebraic expressions. The proposed approach is based on modified nodal analysis and an algorithm developed by the authors for the completely symbolic solution of the related linear systems. A useful property of the program is that it allows the user to select the circuit components which he wishes to consider as symbolic parameters. In order words, with SAPEC, it is possible to obtain the network functions in complete or partial symbolic form.