cheb1ap Produces a lowpass analog Chebyshev type I prototype filter. Calling Sequence [z, p, g] = cheb1ap (n, Rp) Parameters n: Filter Order Rp: Peak-to-peak passband ripple in dB z: Zeros p: Poles g: Gain Description It gives a lowpass analog Chebyshev type I prototype filter of nth order and with a Peak-to-peak passband ripple of Rp. Examples Authors Sonu Sharma, RGIT Mumbai FOSSEE, IIT Bombay