% lab 2 presentation
% lcb 10.12.2000

n=[0:1/44100:1];

sine1=sin(2*pi*10.*n); 
sine2=0.5*sin(2*pi*30.*n);
sine3=0.25*sin(2*pi*50.*n);
sine4=0.125*sin(2*pi*70.*n);
sine5=0.0625*sin(2*pi*90.*n);

figure(1)
subplot(5,1,1);
plot(n,sine1)
subplot(5,1,2);
plot(n,sine1+sine2);
subplot(5,1,3);
plot(n,sine1+sine2+sine3);
subplot(5,1,4);
plot(n,sine1+sine2+sine3+sine4);
subplot(5,1,5);
plot(n,sine1+sine2+sine3+sine4+sine5);