[latexrefman-commits] r392 - in /trunk: ChangeLog latex2e.texi
jhefferon at domain.hid
jhefferon at domain.hid
Mon Aug 3 13:00:01 CEST 2015
Author: jhefferon
Date: Mon Aug 3 12:59:59 2015
New Revision: 392
URL: http://svn.gna.org/viewcvs/latexrefman?rev=392&view=rev
Log:
adjust array
Modified:
trunk/ChangeLog
trunk/latex2e.texi
Modified: trunk/ChangeLog
URL: http://svn.gna.org/viewcvs/latexrefman/trunk/ChangeLog?rev=392&r1=391&r2=392&view=diff
==============================================================================
--- trunk/ChangeLog (original)
+++ trunk/ChangeLog Mon Aug 3 12:59:59 2015
@@ -1,3 +1,7 @@
+2015-08-03 Jim Hefferon <jhefferon at domain.hid>
+
+ * latex2e.texi (array): Adjust wording.
+
2015-08-02 Jim Hefferon <jhefferon at domain.hid>
* latex2e.texi (array): Refer to tabular for details. Add suggestion
Modified: trunk/latex2e.texi
URL: http://svn.gna.org/viewcvs/latexrefman/trunk/latex2e.texi?rev=392&r1=391&r2=392&view=diff
==============================================================================
--- trunk/latex2e.texi (original)
+++ trunk/latex2e.texi Mon Aug 3 12:59:59 2015
@@ -1767,25 +1767,27 @@
Produce a mathematical array. This environment can only be used in math
mode, and normally appears within a displayed mathematics environment
-such as @code{equation} (@pxref{equation}). The required argument
- at domain.hid} describes the number of columns, their alignment, and the
-formatting of the intercolumn regions. Column entries are separated by
- at domain.hid{&}. Rows are terminated with @code{\\}.
+such as @code{equation} (@pxref{equation}). Column entries are
+separated by an ampersand at domain.hid{&}. Rows are terminated with
+double-backslashes at domain.hid{\\}. The required argument @var{cols}
+describes the number of columns, their alignment, and the formatting of
+the intercolumn regions.
The @code{array} environment is just like the @code{tabular}
-environment, except that entries are typeset in mathematics mode (as
- at domain.hid}, not @code{\displaystyle}).
-
-There are two exception to this. The first is that entries are not
-typeset in math mode if the column is specified with @code{@@p@{..@}} in
-the @var{cols} definition. The second is that, instead of @code{tabular}'s @code{\tabcolsep}, @LaTeX{}'s intercolumn
-space in an array is governed by the parameter
+environment but entries are typeset in mathematics mode, in textstyle
+(except if the @var{cols} definition specifies the column with
+ at code{@@p@{..@}}, which causes the entry to be typeset in text mode).
+See @ref{tabular} for the complete description of @var{cols}, and of the
+other common features of the two environments.
+
+There are two ways that @code{array} diverges from @code{tabular}. The
+first is that @code{array} does not have @code{tabular}'s argument
+ at var{pos} giving vertical alignment. The second is that, instead of
+ at code{tabular}'s @code{\tabcolsep}, @LaTeX{}'s intercolumn space in an
+array is governed by the parameter
@findex \arraycolsep
@code{\arraycolsep} which gives half the width between columns; the
-default is @samp{5pt}.
-
-See @ref{tabular} for the complete description of @var{cols}, and of the
-other features of the two environments.
+default for this is @samp{5pt}.
To obtain arrays with braces the standard is to use the @file{amsmath}
package. It comes with environments @code{pmatrix} for an array
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