%priklady na DTFT
SIGSIZE=512
for FILTSIZE=2:2:20
   %vstup signalu je napr. imp. charakteristika max. hladkeho filtra
   [B,A] = MAXFLAT(FILTSIZE,0,0.5)

   n=0:1:SIGSIZE-1;
   F=zeros(1,SIGSIZE);
   for a=1:length(B)
      F=F+B(a)*exp(-i*2*3.1415926*(a-1)*n/SIGSIZE);
   end
   plot(n,abs(F));
   hold on
end