%SECTION0% addDerivative
#TableOfContents
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---
---++ Purpose
Add column(s) containing numerical derivative of requested column(s) with respect to given coordinates.

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---++ Usage
<pre>
&gt; addDerivative options <a href=./AsciiTableFormat.html>ASCII table</a>(s) 
</pre>

%UPTOC%
---++ Options
   $=-c= / =--coordinates=: 
   heading of coordinate column
   $=-l= / =--label=: 
   heading of column(s) to differentiate