... with an electrical system. In theelectrical case the current
is the ratio of the applied voltage to the complex circuit impedance. In this instance, if the velocity is
identified with electrical ... have a resistance in series
with an ideal inductor. The presence of theseries resistor has the effect of moving the poles of H(s)
away from the j axis, thereby preventing the transfer function ... polyno-
mials. The roots of the numerator polynomial are
called the zerosof H(s), and those of thedenomina-
tor are called thepoles of H(s ). The key relationship
is that the location of the poles...