The A-Graph of a Chain Matrix

A simple method of evaluating the chain matix of
n
- cascaded networks is presented. For this purpose, a new graph, called the
A
-graph, is defined. It is also shown that the
B, C,
and
D
parameters of the overall
a
-matrix may be written by a knowledge of the
A
-parameter, which is obtained through the
A
-graph. Applications of the
A
-graph in matrix multiplication and in obtaining the even and odd parts of a product of polynomials are suggested.