The product matrices and new gain formulas
Byeong Gi Lee · IEEE Transactions on Circuits and Systems · 1980
New matrices, the product matrixP, the voltage product matrixp^{\upsilon}, and the current product matrixP^i, are defined at first. And new gain formulasT^{\upsilon}_{qp}for the voltage gain andT^{i}_{qp}, for the current gain are presented on the basis of the product matrices. Although the formulas are topological ones, the procedures for their evaluations are quite systematic, completely indirect and purely numerical, and no sign rule is required. So the new formulas are suitable for computer-aided symbolic network analysis without restriction on symbols, in number or type.