title: Octave colorbar and units
body: <p>In <a href="http://www.gnu.org/software/octave/" rel="nofollow noreferrer">GNU Octave</a> you can make a picture where different colors represent different values in a matrix. You can also add a colorbar, which shows what color corresponds to what value.</p>
  
  <p>Is it possible to somehow add units to the values shown in the colorbar? Instead of saying “0.36” it would say “0.36 V/nm”? I know this is possible in Matlab, but I can’t figure out how to do it in Octave. Any good workarounds?</p>
  
  <p>I assume someone here will mention that I should use matplotlib instead (that usually happens). How would you accomplish the same thing with that?</p>