impseq.m

matlab的一些基础程序

function [x,n]=impseq(n0,n1,n2)
%Generates x(n)=delta(n-n0);n1<=n,n0<=n2
%-----------------------------------------
%[x,n]=impseq(n0,n1,n2)
if((n0<n1)|(n0>n2)|(n1>n2))
   error('arguments must satisfy n1<=n0,n<=n2')
end
n=[n1:n2];
x=[(n-n0)==0];