These groups are defined as amplitude parameters, spacing parameters, and hybrid parameters.
2.
There are six canonical forms of these representations : impedance parameters, chain parameters, hybrid parameters and their inverses.
3.
The admittance parameters are the matrix inverse of the impedance parameters, the inverse hybrid parameters are the matrix inverse of the hybrid parameters, and the [ "'b "'] form of the ABCD-parameters is the matrix inverse of the [ "'a "'] form.
4.
The admittance parameters are the matrix inverse of the impedance parameters, the inverse hybrid parameters are the matrix inverse of the hybrid parameters, and the [ "'b "'] form of the ABCD-parameters is the matrix inverse of the [ "'a "'] form.