From: "Sebastien Vauban" <wxhgmqzgwmuf-geNee64TY+gS+FvcfC7Uqw@public.gmane.org>
To: emacs-orgmode-mXXj517/zsQ@public.gmane.org
Subject: [bug] Negating time changes its value
Date: Mon, 30 Apr 2012 16:25:49 +0200 [thread overview]
Message-ID: <80ehr55maa.fsf@somewhere.org> (raw)
Hello,
Taking the opposite of a time (that is, "putting" a minus sign in front of it)
changes its value...
Here, a quick ECM to demonstrate the above:
* Grand total
#+TBLNAME: GrandTot
| Total | 232:11 |
* Other total
#+TBLNAME: OtherTot
| Total | 158:07 |
* Computation
** OK
The "other total time" is to be divided by 2, and substracted from the "grand
total time".
| | Time |
|--------------------------+--------|
| Grand total | 232:11 |
| - Other total / 2 | 79:03 |
|--------------------------+--------|
| = Total to be considered | 153:08 |
#+TBLFM: @2$2=remote(GrandTot,@1$2);T::@3$2=remote(OtherTot,@1$2)/2;T::@4$2=@2-@3;T
That's correct.
** Not OK
However, I would like to clearly state that the amounts do no add, by having a
minus sign in the time column:
| | Time |
|--------------------------+--------|
| Grand total | 232:11 |
| - Other total / 2 | -80:56 |
|--------------------------+--------|
| = Total to be considered | 151:15 |
#+TBLFM: @2$2=remote(GrandTot,@1$2);T::@3$2=-remote(OtherTot,@1$2)/2;T::@4$2=@2+@3;T
Whoops! Not the same results...
Other variations also fail:
| | Time |
|--------------------------+--------|
| Grand total | 232:11 |
| - Other total / 2 | -80:56 |
|--------------------------+--------|
| = Total to be considered | 151:15 |
#+TBLFM: @2$2=remote(GrandTot,@1$2);T::@3$2=remote(OtherTot,@1$2)/-2;T::@4$2=@2+@3;T
or
| | Time |
|--------------------------+--------|
| Grand total | 232:11 |
| - Other total / 2 | -80:56 |
|--------------------------+--------|
| = Total to be considered | 151:15 |
#+TBLFM: @2$2=remote(GrandTot,@1$2);T::@3$2=remote(OtherTot,@1$2)/2*-1;T::@4$2=@2+@3;T
Best regards,
Seb
--
Sebastien Vauban
next reply other threads:[~2012-04-30 14:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-30 14:25 Sebastien Vauban [this message]
2012-05-01 17:22 ` [bug] Negating time changes its value Bastien
2012-05-02 10:12 ` Sebastien Vauban
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