title: math functions on datatable values, using array maybe?
body: <p>could i take values (all bigints) from a datatable and apply math functions to them? For example, lets say (all record 1):</p>
  
  <pre><code>Column 1 = 10;
  Column 2 = 20;
  Column 3 = 5;
  Column 4 = 60;
  </code></pre>
  
  <p>Now, can i make a math equation from those eg. (column1 + colum2)-(column3 * column4)</p>
  
  <p>Is this possible, maybe using a array???</p>
  
  <p>Thanks guys</p>