From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christian Moe <mail@christianmoe.com>
Subject: Re: date calculation in org table
Date: Thu, 23 May 2013 09:22:44 +0200
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To: The Dude <rafal.kowalski@mac.com>
Cc: emacs-orgmode@gnu.org




Hi, Dude,

Not quite sure why that doesn't work (nor gives an error message about
trying to set the same cell). However, it will work if you specify the
cell range:

> @4$4=$sdate + $3::$4=@-1$4+$3
                    ^^   
  @4$4=$sdate + $3::@5$4..@20$4=@-1$4+$3
                    ^^^^^^^^^^^

BTW, it's OK to omit the reference to the same column, so you can save
two characters:

  @4$4=$sdate + $3::@5$4..@20$4=@-1$4+$3
                                   ^^
  @4$4=$sdate + $3::@5$4..@20$4=@-1+$3 

Yours,
Christian