title: TypeError: Axes3D
body: <p>I got a problem with my Axes3D plotter, every time I put somethign in I get <code>TypeError: unbound method scatter() must be called with Axes3D instance as first argument (got list instance instead)</code></p>
  
  <p>And I don't quite understand what kind of type it wants from me, as I just want to put the x,y,z coordinates of a single point in. (these can be lists or ints, both give errors.)</p>
  
  <pre><code>Axes3D.scatter( Xc[l], Yc[l], Zc[l], c=(i/nbodies,i/nbodies,i/nbodies))
  </code></pre>
  
  <p>I really have no idea what the problem is here</p>