cheb1ap This function designs a lowpass analog Chebyshev type I filter. Calling Sequence [z, p, g] = cheb1ap (n, Rp) [z, p] = cheb1ap (n, Rp) p = cheb1ap (n, Rp) Parameters n: Filter Order Rp: Peak-to-peak passband ripple z: Zeros p: Poles g: Gain Description This is an Octave function. It designs a lowpass analog Chebyshev type I filter of nth order and with a Peak-to-peak passband ripple of Rp. Examples