title: How to plot complex numbers (Argand Diagram) using matplotlib
body: <p>I'd like to create an <a href="http://mathworld.wolfram.com/ArgandDiagram.html" rel="noreferrer">Argand Diagram</a> from a set of complex numbers using matplotlib.</p>
  
  <ul>
  <li><p>Are there any pre-built functions to help me do this?</p></li>
  <li><p>Can anyone recommend an approach?</p></li>
  </ul>
  
  <p><a href="https://i.stack.imgur.com/3to4S.png" rel="noreferrer"><img src="https://i.stack.imgur.com/3to4S.png" alt="enter image description here"></a></p>
  
  <p><sub><a href="http://commons.wikimedia.org/wiki/File:Argandgaussplane.png" rel="noreferrer">Image</a> by <a href="https://commons.wikimedia.org/wiki/User:LeonardoG" rel="noreferrer">LeonardoG</a>, CC-SA-3.0</sub></p>