Wilson’s 171 matrix solution for operational amplifier circuits,
but is more general as it includes all four types of controlled
sources, op amps, and mutually coupled inductances. Also,
using the inspection matrices and the independent source
matrix, we find a solution for a vector of output variables other
than the node-voltage or mesh-current vector. This solution is
appropriate for identification of Thtvenin or Norton equivalent
circuits, two-port parameters, or state-variable matrix parameters.
An altemative, second matrix solution writes a single
matrix equation for the circuit, which gives a solution vector
consisting of all node voltages (or mesh currents), dependent
sources, controlling variables, and any output variables.
Matrix analysis computer programs such as MATLAB [8]
and calculators capable of solving large matrices, give numerical
solutions of these equations for specific values. The circuit
inspection method builds on the foundation that students have
in learning the node and mesh methods and leads to matrix
representation of circuit solutions.