title: Handling complex numbers in Excel spreadsheet
body: <p>I doubt an Excel spreadsheet can handle this but it's worth asking, since I have been trying and searching for a long time with no success. </p>
  
  <p>Entering this into a cell:</p>
  
  <pre><code>=complex(abs(-1.5*(-1.5)^(-1.5))),0)
  </code></pre>
  
  <p>and the cell output is <code>#NUM!</code></p>
  
  <p>The output should be:  <code>0.8164966</code></p>