Keywords: Chebyshev8 gain.png Log base e of the gain magnitude response of an 8th order Chebyshev type I electronic filter in complex frequency space s +j with 0 1 and cutoff frequency 1 Black is -3 corresponding to a gain of about 1/20 or less and white is +3 corresponding to a gain of about 20 or greater source code please Pole-zero plots |