[latexrefman-commits] [SCM] latexrefman updated: r988 - trunk

Jim Hefferon INVALID.NOREPLY at gnu.org.ua
Mon Aug 16 17:29:44 CEST 2021


Author: jimhefferon
Date: 2021-08-16 15:29:44 +0000 (Mon, 16 Aug 2021)
New Revision: 988

Modified:
   trunk/ChangeLog
   trunk/latex2e.html
   trunk/latex2e.info
   trunk/latex2e.pdf
   trunk/latex2e.texi
   trunk/writing.html
Log:
Add section on \caption

Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog	2021-08-13 17:12:43 UTC (rev 987)
+++ trunk/ChangeLog	2021-08-16 15:29:44 UTC (rev 988)
@@ -1,3 +1,7 @@
+2021-08-16  Jim Hefferon  <jhefferon at smcvt.edu>
+        * latex2e.texi (\caption): Add section on \caption.  Put in
+	cross-references to figure and table entries.
+
 2021-08-13  Jim Hefferon  <jhefferon at smcvt.edu>
         * latex2e.texi (Command line input): Replace the graphics draft
 	option example with \includeonly{} example.

Modified: trunk/latex2e.html
===================================================================
--- trunk/latex2e.html	2021-08-13 17:12:43 UTC (rev 987)
+++ trunk/latex2e.html	2021-08-16 15:29:44 UTC (rev 988)
@@ -223,7 +223,10 @@
     <li><a id="toc-_005craggedbottom-1" href="#g_t_005craggedbottom">5.4 <code>\raggedbottom</code></a></li>
     <li><a id="toc-Page-layout-parameters-1" href="#Page-layout-parameters">5.5 Page layout parameters</a></li>
     <li><a id="toc-_005cbaselineskip-_0026-_005cbaselinestretch-1" href="#g_t_005cbaselineskip-_0026-_005cbaselinestretch">5.6 <code>\baselineskip</code> & <code>\baselinestretch</code></a></li>
-    <li><a id="toc-Floats-1" href="#Floats">5.7 Floats</a></li>
+    <li><a id="toc-Floats-1" href="#Floats">5.7 Floats</a>
+    <ul class="no-bullet">
+      <li><a id="toc-_005ccaption-1" href="#g_t_005ccaption">5.7.1 <code>\caption</code></a></li>
+    </ul></li>
   </ul></li>
   <li><a id="toc-Sectioning-1" href="#Sectioning">6 Sectioning</a>
   <ul class="no-bullet">
@@ -4040,8 +4043,112 @@
 LaTeX?”
 (<a href="https://www.latex-project.org/publications/2014-FMi-TUB-tb111mitt-float-placement.pdf">https://www.latex-project.org/publications/2014-FMi-TUB-tb111mitt-float-placement.pdf</a>).
 </p>
+<table class="menu" border="0" cellspacing="0">
+<tr><td align="left" valign="top">• <a href="#g_t_005ccaption" accesskey="1">\caption</a></td><td>  </td><td align="left" valign="top">Make a caption for a floating environment.
+</td></tr>
+</table>
 
+
 <hr>
+<span id="g_t_005ccaption"></span><div class="header">
+<p>
+Up: <a href="#Floats" accesskey="u" rel="up">Floats</a>   [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
+</div>
+<span id="g_t_005ccaption-1"></span><h4 class="subsection">5.7.1 <code>\caption</code></h4>
+
+<span id="index-_005ccaption"></span>
+<span id="index-captions"></span>
+
+<p>Synopsis:
+</p>
+<div class="example">
+<pre class="example">\caption{<var>caption-text</var>}
+</pre></div>
+
+<p>or
+</p>
+<div class="example">
+<pre class="example">\caption[<var>short-caption-text</var>]{<var>caption-text</var>}
+</pre></div>
+
+<p>Make a caption for a floating environment, such as a <code>figure</code> or
+<code>table</code> environment (see <a href="#figure">figure</a> or <a href="#table">table</a>).
+</p>
+<p>In this example, LaTeX places a caption below the blank space that is
+left by the author for the later inclusion of a picture.
+</p>
+<div class="example">
+<pre class="example">\begin{figure}
+  \vspace*{1cm}
+  \caption{Alonzo Cushing, Battery A, 4th US Artillery.}
+  \label{fig:CushingPic}
+\end{figure}
+</pre></div>
+
+<p>The <code>\caption</code> command will label the <var>caption-text</var> with
+something like ‘<samp>Figure 1:</samp>’ for an article or
+‘<samp>Figure 1.1:</samp>’ for a book.  The text is centered if it is
+shorter than the text width, or set as an unindented paragraph if it
+takes more than one line.
+</p>
+<p>In addition to placing the <var>caption-text</var> in the output, the
+<code>\caption</code> command also saves that information for use in a list of
+figures or list of tables (see <a href="#Table-of-contents-etc_002e">Table of contents etc.</a>).
+</p>
+<p>Here the <code>\caption</code> command uses the optional
+<var>short-caption-text</var>, so that the shorter text appears in the list
+of tables, rather than the longer <var>caption-text</var>.
+</p>
+<div class="example">
+<pre class="example">\begin{table}
+  \centering
+  \begin{tabular}{|*{3}{c}|}
+    \hline
+    4  &9  &2 \\
+    3  &5  &7 \\ 
+    8  &1  &6 \\
+    \hline
+  \end{tabular}
+  \caption[\textit{Lo Shu} magic square]{%
+    The \textit{Lo Shu} magic square, which is unique among
+    squares of order three up to rotation and reflection.}
+  \label{tab:LoShu}
+\end{table}
+</pre></div>
+
+<p>LaTeX will label the <var>caption-text</var> with something like
+‘<samp>Table 1:</samp>’ for an article or ‘<samp>Table 1.1:</samp>’ for a
+book.
+</p>
+<p>The caption can appear at the top of the <code>figure</code> or <code>table</code>.
+For instance, that would happen in the prior example by putting the
+<code>\caption</code> between the <code>\centering</code> and the
+<code>\begin{tabular}</code>.
+</p>
+<p>Different floating environments are numbered separately, by default.
+The counter for the <code>figure</code> environment is named <code>figure</code>,
+and similarly the counter for the <code>table</code> environment is
+<code>table</code>.
+</p>
+<p>The text that will be put in the list of figures or list of tables is
+moving text.  If you get the LaTeX error ‘<samp>! Argument of
+\@caption has an extra }</samp>’ then you must put <code>\protect</code> in front
+of any fragile commands. See <a href="#g_t_005cprotect">\protect</a>.
+</p>
+<p>The <code>caption</code> package has many options to adjust how the caption
+appears, for example changing the font size, making the caption be
+hanging text rather than set as a paragraph, or making the caption
+always set as a paragraph rather than centered when it is short.
+</p>
+
+
+
+
+
+
+
+
+<hr>
 <span id="Sectioning"></span><div class="header">
 <p>
 Next: <a href="#Cross-references" accesskey="n" rel="next">Cross references</a>, Previous: <a href="#Layout" accesskey="p" rel="prev">Layout</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a>   [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
@@ -5680,7 +5787,6 @@
 <span id="index-_005ccentering"></span>
 <span id="index-centering-text_002c-declaration-for"></span>
 
-
 <p>Synopsis:
 </p>
 <div class="example">
@@ -6208,10 +6314,11 @@
 in <a href="#Floats">Floats</a>.
 </p>
 <p>The label is optional; it is used for cross references (see <a href="#Cross-references">Cross references</a>).
-<span id="index-_005ccaption"></span>
+<span id="index-_005ccaption-1"></span>
 The optional <code>\caption</code> command specifies caption text for the
-figure.  By default it is numbered.  If <var>loftitle</var> is present, it is
-used in the list of figures instead of <var>title</var> (see <a href="#Table-of-contents-etc_002e">Table of contents etc.</a>).
+figure (see <a href="#g_t_005ccaption">\caption</a>).  By default it is numbered.  If <var>loftitle</var>
+is present, it is used in the list of figures instead of <var>title</var>
+(see <a href="#Table-of-contents-etc_002e">Table of contents etc.</a>).
 </p>
 <p>This example makes a figure out of a graphic.  LaTeX will place that
 graphic and its caption at the top of a page or, if it is pushed to the
@@ -8514,11 +8621,11 @@
 float placement algorithm, see <a href="#Floats">Floats</a>.
 </p>
 <p>The label is optional; it is used for cross references (see <a href="#Cross-references">Cross references</a>).  
-<span id="index-_005ccaption-1"></span>
+<span id="index-_005ccaption-2"></span>
 The <code>\caption</code> command is also optional.  It specifies caption text
-<var>title</var> for the table.  By default it is numbered.  If its optional
-<var>lottitle</var> is present then that text is used in the list of tables
-instead of <var>title</var> (see <a href="#Table-of-contents-etc_002e">Table of contents etc.</a>).
+<var>title</var> for the table (see <a href="#g_t_005ccaption">\caption</a>).  By default it is
+numbered.  If its optional <var>lottitle</var> is present then that text is
+used in the list of tables instead of <var>title</var> (see <a href="#Table-of-contents-etc_002e">Table of contents etc.</a>).
 </p>
 <p>In this example the table and caption will float to the bottom of a page,
 unless it is pushed to a float page at the end.
@@ -11765,9 +11872,10 @@
 <pre class="example">\ignorespacesafterend
 </pre></div>
 
-<p>Both commands cause LaTeX to ignore spaces after the end of the
-command up until the first non-space character.  The first is a command
-from plain TeX, and the second is LaTeX-specific.
+<p>Both commands cause LaTeX to ignore spaces (that is, characters of
+category 10) after the end of the command, up until the first
+non-space character.  The first is a command from plain TeX, and the
+second is LaTeX-specific.
 </p>
 <p>The <code>ignorespaces</code> is often used when defining commands via
 <code>\newcommand</code>, or <code>\newenvironment</code>, or <code>\def</code>.  The
@@ -19369,7 +19477,7 @@
 </p>
 <p>Graphics come in two main types, raster and vector.  LaTeX can use
 both.  In raster graphics the file contains an entry for each location
-in an array, describing what color it is.  An example is a photograph,
+in an array, describing what color it is.  An example is a photograph
 in JPG format.  In vector graphics, the file contains a list of
 instructions such as ‘<samp>draw a circle with this radius and that
 center</samp>’.  An example is a line drawing produced by the Asymptote
@@ -22503,16 +22611,20 @@
 <code>\renewcommand{\numberline}[1]{#1~}</code> before
 <code>\tableofcontents</code>.
 </p>
-<p>This command is fragile, so you may need to precede it with
+<p>This command is fragile so you may need to precede it with
 <code>\protect</code> (see <a href="#g_t_005cprotect">\protect</a>).  An example is the use of
-<code>\protect</code> in the command
-<code>\addcontentsline{toc}{section}{\protect\numberline{}Summary}</code>
-to get the <code>\numberline</code> into the <code>\contentsline</code> command in
-the <samp>.toc</samp> file: <code>\contentsline {section}{\numberline
-{}Summary}{6}</code> (the page number ‘<samp>6</samp>’ is automatically added by
-LaTeX; see <a href="#g_t_005caddcontentsline">\addcontentsline</a>).
+<code>\protect</code> in this command,
 </p>
+<div class="example">
+<pre class="example"><code>\addcontentsline{toc}{section}{\protect\numberline{}Summary}</code>
+</pre></div>
 
+<p>to get the <code>\numberline</code> into the <code>\contentsline</code>
+command in the <samp>.toc</samp> file: <code>\contentsline
+{section}{\numberline {}Summary}{6}</code> (the page number ‘<samp>6</samp>’
+is automatically added by LaTeX; see <a href="#g_t_005caddcontentsline">\addcontentsline</a>).
+</p>
+
 <hr>
 <span id="Indexes"></span><div class="header">
 <p>
@@ -24676,8 +24788,8 @@
 <pre class="example">pdflatex "\includeonly{chap1}\input{mybook}"
 </pre></div>
 
-<p>will give output that has the first chapter but no
-other. See <a href="#Splitting-the-input">Splitting the input</a>.
+<p>will give output that has the first chapter but no other
+chapter. See <a href="#Splitting-the-input">Splitting the input</a>.
 </p>
 
 <hr>
@@ -25311,8 +25423,9 @@
 <tr><td></td><td valign="top"><a href="#index-_005ccapitalring"><code>\capitalring</code></a>:</td><td> </td><td valign="top"><a href="#Accents">Accents</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-_005ccapitaltie"><code>\capitaltie</code></a>:</td><td> </td><td valign="top"><a href="#Accents">Accents</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-_005ccapitaltilde"><code>\capitaltilde</code></a>:</td><td> </td><td valign="top"><a href="#Accents">Accents</a></td></tr>
-<tr><td></td><td valign="top"><a href="#index-_005ccaption"><code>\caption</code></a>:</td><td> </td><td valign="top"><a href="#figure">figure</a></td></tr>
-<tr><td></td><td valign="top"><a href="#index-_005ccaption-1"><code>\caption</code></a>:</td><td> </td><td valign="top"><a href="#table">table</a></td></tr>
+<tr><td></td><td valign="top"><a href="#index-_005ccaption"><code>\caption</code></a>:</td><td> </td><td valign="top"><a href="#g_t_005ccaption">\caption</a></td></tr>
+<tr><td></td><td valign="top"><a href="#index-_005ccaption-1"><code>\caption</code></a>:</td><td> </td><td valign="top"><a href="#figure">figure</a></td></tr>
+<tr><td></td><td valign="top"><a href="#index-_005ccaption-2"><code>\caption</code></a>:</td><td> </td><td valign="top"><a href="#table">table</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-_005ccc"><code>\cc</code></a>:</td><td> </td><td valign="top"><a href="#g_t_005ccc">\cc</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-_005ccdot"><code>\cdot</code></a>:</td><td> </td><td valign="top"><a href="#Math-symbols">Math symbols</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-_005ccdots"><code>\cdots</code></a>:</td><td> </td><td valign="top"><a href="#Dots">Dots</a></td></tr>
@@ -26323,6 +26436,7 @@
 <tr><td></td><td valign="top"><a href="#index-calligraphic-fonts">calligraphic fonts</a>:</td><td> </td><td valign="top"><a href="#Calligraphic">Calligraphic</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-calligraphic-letters-for-math">calligraphic letters for math</a>:</td><td> </td><td valign="top"><a href="#Font-styles">Font styles</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-cap-height">cap height</a>:</td><td> </td><td valign="top"><a href="#Text-symbols">Text symbols</a></td></tr>
+<tr><td></td><td valign="top"><a href="#index-captions">captions</a>:</td><td> </td><td valign="top"><a href="#g_t_005ccaption">\caption</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-caron-accent">caron accent</a>:</td><td> </td><td valign="top"><a href="#Accents">Accents</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-catcode">catcode</a>:</td><td> </td><td valign="top"><a href="#g_t_005cmakeatletter-_0026-_005cmakeatother">\makeatletter & \makeatother</a></td></tr>
 <tr><td></td><td valign="top"><a href="#index-category-code_002c-character">category code, character</a>:</td><td> </td><td valign="top"><a href="#g_t_005cmakeatletter-_0026-_005cmakeatother">\makeatletter & \makeatother</a></td></tr>

Modified: trunk/latex2e.info
===================================================================
--- trunk/latex2e.info	2021-08-13 17:12:43 UTC (rev 987)
+++ trunk/latex2e.info	2021-08-16 15:29:44 UTC (rev 988)
@@ -2438,7 +2438,86 @@
 environments like figure and table in LaTeX?"
 (<https://www.latex-project.org/publications/2014-FMi-TUB-tb111mitt-float-placement.pdf>).
 
+* Menu:
+
+* \caption::          Make a caption for a floating environment.
+
 
+File: latex2e.info,  Node: \caption,  Up: Floats
+
+5.7.1 '\caption'
+----------------
+
+Synopsis:
+
+     \caption{CAPTION-TEXT}
+
+or
+
+     \caption[SHORT-CAPTION-TEXT]{CAPTION-TEXT}
+
+   Make a caption for a floating environment, such as a 'figure' or
+'table' environment (*note figure:: or *note table::).
+
+   In this example, LaTeX places a caption below the blank space that is
+left by the author for the later inclusion of a picture.
+
+     \begin{figure}
+       \vspace*{1cm}
+       \caption{Alonzo Cushing, Battery A, 4th US Artillery.}
+       \label{fig:CushingPic}
+     \end{figure}
+
+The '\caption' command will label the CAPTION-TEXT with something like
+'Figure 1:' for an article or 'Figure 1.1:' for a book.  The text is
+centered if it is shorter than the text width, or set as an unindented
+paragraph if it takes more than one line.
+
+   In addition to placing the CAPTION-TEXT in the output, the '\caption'
+command also saves that information for use in a list of figures or list
+of tables (see *note Table of contents etc.::).
+
+   Here the '\caption' command uses the optional SHORT-CAPTION-TEXT, so
+that the shorter text appears in the list of tables, rather than the
+longer CAPTION-TEXT.
+
+     \begin{table}
+       \centering
+       \begin{tabular}{|*{3}{c}|}
+         \hline
+         4  &9  &2 \\
+         3  &5  &7 \\
+         8  &1  &6 \\
+         \hline
+       \end{tabular}
+       \caption[\textit{Lo Shu} magic square]{%
+         The \textit{Lo Shu} magic square, which is unique among
+         squares of order three up to rotation and reflection.}
+       \label{tab:LoShu}
+     \end{table}
+
+LaTeX will label the CAPTION-TEXT with something like 'Table 1:' for an
+article or 'Table 1.1:' for a book.
+
+   The caption can appear at the top of the 'figure' or 'table'.  For
+instance, that would happen in the prior example by putting the
+'\caption' between the '\centering' and the '\begin{tabular}'.
+
+   Different floating environments are numbered separately, by default.
+The counter for the 'figure' environment is named 'figure', and
+similarly the counter for the 'table' environment is 'table'.
+
+   The text that will be put in the list of figures or list of tables is
+moving text.  If you get the LaTeX error '! Argument of \@caption has an
+extra }' then you must put '\protect' in front of any fragile commands.
+*Note \protect::.
+
+   The 'caption' package has many options to adjust how the caption
+appears, for example changing the font size, making the caption be
+hanging text rather than set as a paragraph, or making the caption
+always set as a paragraph rather than centered when it is short.
+
+
 File: latex2e.info,  Node: Sectioning,  Next: Cross references,  Prev: Layout,  Up: Top
 
 6 Sectioning
@@ -4048,9 +4127,9 @@
 
    The label is optional; it is used for cross references (*note Cross
 references::).  The optional '\caption' command specifies caption text
-for the figure.  By default it is numbered.  If LOFTITLE is present, it
-is used in the list of figures instead of TITLE (*note Table of contents
-etc.::).
+for the figure (*note \caption::).  By default it is numbered.  If
+LOFTITLE is present, it is used in the list of figures instead of TITLE
+(*note Table of contents etc.::).
 
    This example makes a figure out of a graphic.  LaTeX will place that
 graphic and its caption at the top of a page or, if it is pushed to the
@@ -5753,9 +5832,9 @@
 
    The label is optional; it is used for cross references (*note Cross
 references::).  The '\caption' command is also optional.  It specifies
-caption text TITLE for the table.  By default it is numbered.  If its
-optional LOTTITLE is present then that text is used in the list of
-tables instead of TITLE (*note Table of contents etc.::).
+caption text TITLE for the table (*note \caption::).  By default it is
+numbered.  If its optional LOTTITLE is present then that text is used in
+the list of tables instead of TITLE (*note Table of contents etc.::).
 
    In this example the table and caption will float to the bottom of a
 page, unless it is pushed to a float page at the end.
@@ -8226,9 +8305,10 @@
 
      \ignorespacesafterend
 
-   Both commands cause LaTeX to ignore spaces after the end of the
-command up until the first non-space character.  The first is a command
-from plain TeX, and the second is LaTeX-specific.
+   Both commands cause LaTeX to ignore spaces (that is, characters of
+category 10) after the end of the command, up until the first non-space
+character.  The first is a command from plain TeX, and the second is
+LaTeX-specific.
 
    The 'ignorespaces' is often used when defining commands via
 '\newcommand', or '\newenvironment', or '\def'.  The example below
@@ -13447,8 +13527,8 @@
 
    Graphics come in two main types, raster and vector.  LaTeX can use
 both.  In raster graphics the file contains an entry for each location
-in an array, describing what color it is.  An example is a photograph,
-in JPG format.  In vector graphics, the file contains a list of
+in an array, describing what color it is.  An example is a photograph in
+JPG format.  In vector graphics, the file contains a list of
 instructions such as 'draw a circle with this radius and that center'.
 An example is a line drawing produced by the Asymptote program, in PDF
 format.  Generally vector graphics are more useful because you can
@@ -15563,14 +15643,16 @@
 '\l at subsection', etc.  Put section numbers inside a natural-width box
 with '\renewcommand{\numberline}[1]{#1~}' before '\tableofcontents'.
 
-   This command is fragile, so you may need to precede it with
-'\protect' (*note \protect::).  An example is the use of '\protect' in
-the command
-'\addcontentsline{toc}{section}{\protect\numberline{}Summary}' to get
-the '\numberline' into the '\contentsline' command in the '.toc' file:
-'\contentsline {section}{\numberline {}Summary}{6}' (the page number '6'
-is automatically added by LaTeX; *note \addcontentsline::).
+   This command is fragile so you may need to precede it with '\protect'
+(*note \protect::).  An example is the use of '\protect' in this
+command,
 
+     \addcontentsline{toc}{section}{\protect\numberline{}Summary}
+
+to get the '\numberline' into the '\contentsline' command in the '.toc'
+file: '\contentsline {section}{\numberline {}Summary}{6}' (the page
+number '6' is automatically added by LaTeX; *note \addcontentsline::).
+
 
 File: latex2e.info,  Node: Indexes,  Next: Glossaries,  Prev: Table of contents etc.,  Up: Front/back matter
 
@@ -17125,7 +17207,7 @@
 
      pdflatex "\includeonly{chap1}\input{mybook}"
 
-will give output that has the first chapter but no other.  *Note
+will give output that has the first chapter but no other chapter.  *Note
 Splitting the input::.
 
 
@@ -17639,8 +17721,9 @@
 * \capitalring:                          Accents.             (line  77)
 * \capitaltie:                           Accents.             (line  83)
 * \capitaltilde:                         Accents.             (line  48)
-* \caption:                              figure.              (line  44)
-* \caption <1>:                          table.               (line  42)
+* \caption:                              \caption.            (line   6)
+* \caption <1>:                          figure.              (line  44)
+* \caption <2>:                          table.               (line  42)
 * \cc:                                   \cc.                 (line   6)
 * \cdot:                                 Math symbols.        (line 118)
 * \cdots:                                Dots.                (line  17)
@@ -18856,6 +18939,7 @@
 * calligraphic fonts:                    Calligraphic.        (line   6)
 * calligraphic letters for math:         Font styles.         (line  79)
 * cap height:                            Text symbols.        (line 103)
+* captions:                              \caption.            (line   6)
 * caron accent:                          Accents.             (line  91)
 * catcode:                               \makeatletter & \makeatother.
                                                               (line  19)
@@ -20411,447 +20495,448 @@
 Ref: floats dbltopnumber99440
 Ref: floats topnumber99559
 Ref: floats totalnumber99663
-Node: Sectioning100205
-Ref: sectioning secnumdepth103314
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+Ref: Leading blanks453505
+Node: ~453818
+Node: \thinspace & \negthinspace456395
+Node: \/457593
+Node: \hrulefill & \dotfill459551
+Node: \bigskip & \medskip & \smallskip460907
+Ref: bigskip461725
+Ref: medskip461929
+Ref: smallskip462138
+Node: \bigbreak & \medbreak & \smallbreak462799
+Node: \strut463785
+Node: \vspace467022
+Node: \vfill468583
+Node: \addvspace469511
+Node: Boxes471557
+Node: \mbox & \makebox472263
+Ref: mbox makebox depth473531
+Ref: mbox makebox height473531
+Ref: mbox makebox width473531
+Ref: mbox makebox totalheight473531
+Node: \fbox & \framebox475626
+Ref: fbox framebox fboxrule476933
+Ref: fbox framebox fboxsep477123
+Node: \parbox478225
+Node: \raisebox480531
+Ref: raisebox depth481504
+Ref: raisebox height481504
+Ref: raisebox width481504
+Ref: raisebox totalheight481504
+Node: \sbox & \savebox482205
+Node: lrbox485267
+Node: \usebox486153
+Node: Color486592
+Node: Color package options487391
+Node: Color models489037
+Ref: color models cmyk489834
+Ref: color models gray490197
+Ref: color models rgb490346
+Ref: color models RGB490683
+Ref: color models named491058
+Node: Commands for color491346
+Node: Define colors491761
+Node: Colored text492486
+Node: Colored boxes494883
+Node: Colored pages496272
+Node: Graphics496965
+Node: Graphics package options499091
+Node: Graphics package configuration501844
+Node: \graphicspath502646
+Node: \DeclareGraphicsExtensions505604
+Node: \DeclareGraphicsRule507422
+Node: Commands for graphics510603
+Node: \includegraphics511108
+Ref: includegraphics width516171
+Ref: includegraphics height516704
+Ref: includegraphics totalheight517110
+Ref: includegraphics keepaspectratio517374
+Ref: includegraphics viewport519060
+Ref: includegraphics trim519455
+Ref: includegraphics clip519911
+Ref: includegraphics page520171
+Ref: includegraphics pagebox520262
+Ref: includegraphics interpolate521127
+Ref: includegraphics quiet521332
+Ref: includegraphics draft521493
+Ref: includegraphics bb522298
+Ref: includegraphics bbllx522696
+Ref: includegraphics bblly522696
+Ref: includegraphics bburx522696
+Ref: includegraphics bbury522696
+Ref: includegraphics natwidth522838
+Ref: includegraphics natheight522838
+Ref: includegraphics hiresbb523024
+Ref: includegraphics type523786
+Ref: includegraphics ext523826
+Ref: includegraphics read523929
+Ref: includegraphics command524046
+Node: \rotatebox524292
+Node: \scalebox527146
+Node: \resizebox528202
+Node: Special insertions529394
+Node: Reserved characters530262
+Node: Upper and lower case531522
+Node: Symbols by font position533908
+Node: Text symbols534587
+Node: Accents539571
+Node: \accent541724
+Node: Additional Latin letters543486
+Ref: Non-English characters543668
+Node: inputenc package544687
+Node: \rule547237
+Node: \today548425
+Node: Splitting the input549361
+Node: \endinput551103
+Node: \include & \includeonly552406
+Node: \input556703
+Node: Front/back matter557918
+Node: Table of contents etc.558251
+Node: \@dottedtocline563956
+Node: \addcontentsline565543
+Node: \addtocontents568606
+Node: \contentsline570823
+Node: \nofiles572601
+Node: \numberline573352
+Node: Indexes574516
+Node: \index577230
+Node: makeindex582335
+Ref: makeindex preamble584003
+Ref: makeindex postamble584143
+Ref: makeindex group skip584228
+Ref: makeindex letheadflag584561
+Ref: makeindex lethead prefix585022
+Ref: makeindex lethead suffix585174
+Ref: makeindex item 0585322
+Ref: makeindex item 1585402
+Ref: makeindex item 2585477
+Ref: makeindex item 01585555
+Ref: makeindex item x1585660
+Ref: makeindex item 12585865
+Ref: makeindex item x2585973
+Ref: makeindex delim 0586133
+Ref: makeindex delim 1586263
+Ref: makeindex delim 2586393
+Ref: makeindex delim n586519
+Ref: makeindex delim r586654
+Ref: makeindex line max586762
+Ref: makeindex indent space586897
+Ref: makeindex indent length586992
+Ref: makeindex page precedence587177
+Node: \printindex588212
+Node: Glossaries588685
+Node: \newglossaryentry590652
+Node: \gls592119
+Node: Letters592913
+Node: \address596531
+Node: \cc597342
+Node: \closing597784
+Node: \encl598098
+Node: \location598512
+Node: \makelabels598776
+Node: \name601093
+Node: \opening601334
+Node: \ps601615
+Node: \signature601904
+Node: \telephone603132
+Node: Input/output603497
+Node: \openin & \openout604227
+Node: \read606970
+Node: \typein608157
+Node: \typeout609417
+Node: \write610467
+Node: \write and security615194
+Node: \message616138
+Node: \wlog617967
+Node: \write18618468
+Node: Command line interface621959
+Ref: Command line622123
+Node: Command line options624276
+Ref: interaction modes625279
+Ref: output directory626233
+Node: Command line input627932
+Node: Jobname630055
+Node: Recovering from errors633197
+Node: Document templates634625
+Node: beamer template635059
+Node: article template635701
+Node: book template636164
+Node: Larger book template636643
+Node: Index638185
+Ref: Command Index638271
 
 End Tag Table
 

Modified: trunk/latex2e.pdf
===================================================================
(Binary files differ)

Modified: trunk/latex2e.texi
===================================================================
--- trunk/latex2e.texi	2021-08-13 17:12:43 UTC (rev 987)
+++ trunk/latex2e.texi	2021-08-16 15:29:44 UTC (rev 988)
@@ -3297,7 +3297,109 @@
 @LaTeX{}?''
 (@url{https://www.latex-project.org/publications/2014-FMi-TUB-tb111mitt-float-placement.pdf}).
 
+ at menu
+* \caption::          Make a caption for a floating environment.
+ at end menu
 
+
+ at node \caption
+ at subsection @code{\caption}
+
+ at findex \caption
+ at cindex captions
+
+Synopsis:
+
+ at example
+\caption@{@var{caption-text}@}
+ at end example
+
+ at noindent
+or
+
+ at example
+\caption[@var{short-caption-text}]@{@var{caption-text}@}
+ at end example
+
+Make a caption for a floating environment, such as a @code{figure} or
+ at code{table} environment (@pxref{figure} or @ref{table}).
+
+In this example, @LaTeX{} places a caption below the blank space that is
+left by the author for the later inclusion of a picture.
+
+ at example
+\begin@{figure@}
+  \vspace*@{1cm@}
+  \caption@{Alonzo Cushing, Battery A, 4th US Artillery.@}
+  \label@{fig:CushingPic@}
+\end@{figure@}
+ at end example
+
+ at noindent
+The @code{\caption} command will label the @var{caption-text} with
+something like @samp{Figure at tie{}1:} for an article or
+ at samp{Figure at tie{}1.1:} for a book.  The text is centered if it is
+shorter than the text width, or set as an unindented paragraph if it
+takes more than one line.
+
+In addition to placing the @var{caption-text} in the output, the
+ at code{\caption} command also saves that information for use in a list of
+figures or list of tables (see @ref{Table of contents etc.}).
+
+Here the @code{\caption} command uses the optional
+ at var{short-caption-text}, so that the shorter text appears in the list
+of tables, rather than the longer @var{caption-text}.
+
+ at example
+\begin@{table@}
+  \centering
+  \begin@{tabular@}@{|*@{3@}@{c@}|@}
+    \hline
+    4  &9  &2 \\
+    3  &5  &7 \\ 
+    8  &1  &6 \\
+    \hline
+  \end@{tabular@}
+  \caption[\textit@{Lo Shu@} magic square]@{%
+    The \textit@{Lo Shu@} magic square, which is unique among
+    squares of order three up to rotation and reflection.@}
+  \label@{tab:LoShu@}
+\end@{table@}
+ at end example
+
+ at noindent
+ at LaTeX{} will label the @var{caption-text} with something like
+ at samp{Table at tie{}1:} for an article or @samp{Table at tie{}1.1:} for a
+book.
+
+The caption can appear at the top of the @code{figure} or @code{table}.
+For instance, that would happen in the prior example by putting the
+ at code{\caption} between the @code{\centering} and the
+ at code{\begin@{tabular@}}.
+
+Different floating environments are numbered separately, by default.
+The counter for the @code{figure} environment is named @code{figure},
+and similarly the counter for the @code{table} environment is
+ at code{table}.
+
+The text that will be put in the list of figures or list of tables is
+moving text.  If you get the @LaTeX{} error @samp{! Argument of
+\@@caption has an extra @}} then you must put @code{\protect} in front
+of any fragile commands. @xref{\protect}.
+
+The @code{caption} package has many options to adjust how the caption
+appears, for example changing the font size, making the caption be
+hanging text rather than set as a paragraph, or making the caption
+always set as a paragraph rather than centered when it is short.
+
+
+
+
+
+
+
+
+
 @node Sectioning
 @chapter Sectioning
 
@@ -4803,7 +4905,6 @@
 @findex \centering
 @cindex centering text, declaration for
 
-
 Synopsis:
 
 @example
@@ -5295,9 +5396,9 @@
 references}).
 @findex \caption
 The optional @code{\caption} command specifies caption text for the
-figure.  By default it is numbered.  If @var{loftitle} is present, it is
-used in the list of figures instead of @var{title} (@pxref{Table of
-contents etc.}).
+figure (@pxref{\caption}).  By default it is numbered.  If @var{loftitle}
+is present, it is used in the list of figures instead of @var{title}
+(@pxref{Table of contents etc.}).
 
 This example makes a figure out of a graphic.  @LaTeX{} will place that
 graphic and its caption at the top of a page or, if it is pushed to the
@@ -7358,9 +7459,10 @@
 references}).  
 @findex \caption
 The @code{\caption} command is also optional.  It specifies caption text
- at var{title} for the table.  By default it is numbered.  If its optional
- at var{lottitle} is present then that text is used in the list of tables
-instead of @var{title} (@pxref{Table of contents etc.}).
+ at var{title} for the table (@pxref{\caption}).  By default it is
+numbered.  If its optional @var{lottitle} is present then that text is
+used in the list of tables instead of @var{title} (@pxref{Table of
+contents etc.}).
 
 In this example the table and caption will float to the bottom of a page,
 unless it is pushed to a float page at the end.
@@ -10333,9 +10435,10 @@
 \ignorespacesafterend
 @end example
 
-Both commands cause @LaTeX{} to ignore spaces after the end of the
-command up until the first non-space character.  The first is a command
-from plain @TeX{}, and the second is @LaTeX{}-specific.
+Both commands cause @LaTeX{} to ignore spaces (that is, characters of
+category at tie{}10) after the end of the command, up until the first
+non-space character.  The first is a command from plain @TeX{}, and the
+second is @LaTeX{}-specific.
 
 The @code{ignorespaces} is often used when defining commands via
 @code{\newcommand}, or @code{\newenvironment}, or @code{\def}.  The
@@ -16901,7 +17004,7 @@
 
 Graphics come in two main types, raster and vector.  @LaTeX{} can use
 both.  In raster graphics the file contains an entry for each location
-in an array, describing what color it is.  An example is a photograph,
+in an array, describing what color it is.  An example is a photograph
 in JPG format.  In vector graphics, the file contains a list of
 instructions such as @samp{draw a circle with this radius and that
 center}.  An example is a line drawing produced by the Asymptote
@@ -19637,16 +19740,21 @@
 @code{\renewcommand@{\numberline@}[1]@{#1~@}} before
 @code{\tableofcontents}.
 
-This command is fragile, so you may need to precede it with
+This command is fragile so you may need to precede it with
 @code{\protect} (@pxref{\protect}).  An example is the use of
- at code{\protect} in the command
+ at code{\protect} in this command,
+
+ at example
 @code{\addcontentsline@{toc@}@{section@}@{\protect\numberline@{@}Summary@}}
-to get the @code{\numberline} into the @code{\contentsline} command in
-the @file{.toc} file: @code{\contentsline @{section@}@{\numberline
-@{@}Summary@}@{6@}} (the page number @samp{6} is automatically added by
- at LaTeX{}; @pxref{\addcontentsline}).
+ at end example
 
+ at noindent
+to get the @code{\numberline} into the @code{\contentsline}
+command in the @file{.toc} file: @code{\contentsline
+@{section@}@{\numberline @{@}Summary@}@{6@}} (the page number @samp{6}
+is automatically added by @LaTeX{}; @pxref{\addcontentsline}).
 
+
 @node Indexes
 @section Indexes
 

Modified: trunk/writing.html
===================================================================
--- trunk/writing.html	2021-08-13 17:12:43 UTC (rev 987)
+++ trunk/writing.html	2021-08-16 15:29:44 UTC (rev 988)
@@ -174,7 +174,9 @@
     If convenient, furnish any parameter values that are in the standard
     classes.
     For instance, <code>\footnote</code> has <code>\footnoterule</code>
-    and <code>\footnotesep</code>.</li>
+    and <code>\footnotesep</code>.
+    Consider giving the values of any magic numbers in the standard packages. 
+  </li>
 
   <li><span class="listitem">Some entries end with more examples.</span>
     Following the full explanation, you may want to give
@@ -185,7 +187,8 @@
     For most commands the arguments are simple, but for some they
     merit more complete coverage.</li>
 
-  <li>Define index entries, with <tt>@cindex</tt> for the general index
+  <li><span class="listitem">Define index entries,</span>
+    with <tt>@cindex</tt> for the general index
     and <tt>@findex</tt> for macro and other code names. Start general
     index entries with a lowercase letter (“<tt>font</tt>”,
     unless the word would normally be capitalized
@@ -202,7 +205,10 @@
   (1) Test all examples, no matter how small.
   (2) Use best practices, both coding and typographic practices,
   such as including the <code>\,</code> space in <code>$\int x\, dx$</code>.
-  (3) Keep it brief but make it interesting, or at least sensible.
+  (3) There is such a thing as too many examples.
+  Perhaps two or at most three is enough.
+  (4) Keep them brief.
+  (5) Make them interesting, or at least sensible.
   If you are illustrating an aspect of formula writing
   then use an actual formula.
   For text, use an example from an actual document if reasonable but
@@ -264,6 +270,7 @@
   <li><span class="listitem">Tags</span>
     Use <code>@code{..}</code> for code,
     <code>@file{..}</code> for file names,
+    <code>@code{..}</code> for package names,
     <code>@samp{..}</code> for examples.
     Don't forget that curly braces inside examples need to be escaped
     with at-signs: <code>@code{\macro@{arg@}</code>.</li>



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