Can someone please tell me how do I write comments involving mathematical techniques as it appears in text books. Say for eg. I wish to write summation of q_i over all integral values of i as it would have appeared in a math text book having a sigma notation and everything...

  • 3
    $\begingroup$ You can see a lot of examples by clicking on “edit” to see the source of existing posts. Press Escape or Back or close the browser tab to abandon the edit. $\endgroup$ Sep 9, 2014 at 12:46


Browse other questions tagged .