A linear electrical network can be described in a convenient way by means of the node equations. This letter presents a universal formula which expresses any network function as the quotient of two determinants. The determinants belong to matrices derived from the indefinite nodal admittance matrix .
Keywords :
Linear networks, time-invariant; Network functions; Admittance; Computer networks; Equations; Frequency; Inductors; Information analysis; Linear circuits; Performance analysis; Poles and zeros; Transfer functions;