equation obtained by setting equal to zero either the denominator of a transfer function of a closed-loop system or the characteristic polynomial of a given linear transformation on a finite dimensional vector space or of its matrix representation Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=351-21-25
· the characteristic polynomial of a given matrix, equated to zero. · Also calledauxiliary equation.an equation with one variable and equated to zero, which is derived from a given linear differential equation and in which the coefficient and power of the variable in each term correspond to the coefficient and order of a derivative in ... Found on https://www.infoplease.com/dictionary/characteristic-equation