Understanding a circuit means finding the hierarchical structure of its functional blocks and rediscovering the designer's original intentions. This book presents a new method for analysing circuit structures as sentences and their elements as words in order increase the level of automatic circuit understanding. Also discussed is a new formulation procedure that not only changes the solution strategy, but it also changes the view of matrix reduction techniques, as well as the use of electromagnetic (EM) stimulation tools for the first-pass design of coaxial-wave guide power-combining circuits.