Signals, Systems, and Transforms: impz(b,a); - File Exchange

No BSD License

LPF2nd(zeta)
LPFbut(N)
ctc(x,y,T) z = ctc(x,y,T) simulates the convolution of two causal continuous-time signals x(t) and
impz(b,a);
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from Signals, Systems, and Transforms by Leland Jackson
Companion Software

impz(b,a);
function [h,n] = impz(b,a); n = 0:4/(1-max(abs(roots(a)))); delta = zeros(size(n)); delta(1) = 1; % unit impulse h = filter(b,a,delta);