nvec = 1:200;
tvec = [];
outerclk = tic();
for n = nvec
  Z = rand(n,2) * [1;i] - (0.5+0.5i);
  X = real(Z);
  Y = imag(Z);
  tic();
  figure;
  scatter(X,Y);
  drawnow();
  close;
  tvec(end+1) = toc();
end
toc(outerclk)
sum(tvec)
plot(nvec,tvec);