A = 1;
w = 1;
t = 0:0.1:2 * pi;

for i = 0.0:+1:50.0
   ok = (2 * i) + 1;
   y = (A / 2 + (2*A) / pi) * (1 / (2 * i) + 1) * sin(ok * t);
   plot(t,y);
end