From 1f9cc08ecad6e7f78f44084f0d001203f04104a7 Mon Sep 17 00:00:00 2001 From: Michael Brand Date: Fri, 24 Aug 2012 19:46:49 +0200 Subject: [PATCH] org.texi: Mention when a table header is mandatory * org.texi (Column formulas): Add a sentence to be more explicit about when a table header is mandatory. --- doc/org.texi | 11 +++++++---- 1 files changed, 7 insertions(+), 4 deletions(-) diff --git a/doc/org.texi b/doc/org.texi index c33b5a9..cf0656c 100644 --- a/doc/org.texi +++ b/doc/org.texi @@ -2770,10 +2770,13 @@ Named field, see @ref{Advanced features}. When you assign a formula to a simple column reference like @code{$3=}, the same formula will be used in all fields of that column, with the following very convenient exceptions: (i) If the table contains horizontal separator -hlines, everything before the first such line is considered part of the table -@emph{header} and will not be modified by column formulas. (ii) Fields that -already get a value from a field/range formula will be left alone by column -formulas. These conditions make column formulas very easy to use. +hlines with rows above and below, everything before the first such hline is +considered part of the table @emph{header} and will not be modified by column +formulas. Therefore a header is mandatory when you use column formulas and +want to add hlines to group rows, like for example to separate a total row at +the bottom from the summand rows above. (ii) Fields that already get a value +from a field/range formula will be left alone by column formulas. These +conditions make column formulas very easy to use. To assign a formula to a column, type it directly into any field in the column, preceded by an equal sign, like @samp{=$1+$2}. When you press -- 1.7.4.2