title: Drawing Slope Triangles in MATLAB loglog plot
body: <p>I have a log-log plot in MATLAB and would like to add a "slope triangle" like <a href="http://pgfplots.net/tikz/examples/convergence-plot/" rel="nofollow">this</a>.  Any thoughts on how to do this?  Here's a MWE:</p>
  
  <pre><code>x = [1000; 2000; 3000; 4000; 5000; 6000; 7000; 8000; 9000; 10000];
  y = [0.01; 0.03; 0.05; 0.09; 0.14; 0.2; 0.28; 0.38; 0.48; 0.56];
  loglog(x,y);
  </code></pre>