Innovative in approach, this text uses the hand-held programmable graphing calculator as both a calculating tool and a pedagogical tool to teach students how to do classical circuit analysis and how to make mathematical models of electrical networks that can be programmed on the TI-85 or 86. Introduces a generic method that is compatible with any mathematical computer program, e.g., MathCAD. This unique approach allows students to spend time writing programs that can actually be used, and to make computer studies of large circuits specified by R, L, C elements—rather than getting bogged down by tedious calculations.