</td></tr><tr><td valign="top"><a name=".EX">.EX</a></td><td><p><tt class="literal">.EX</tt> [<em class="replaceable"><tt>caption</em>] [<em class="replaceable">n</em>] [<em class="replaceable">flag</tt></em>]</p><p>Exhibit <em class="emphasis">caption</em>.  Arguments optionally override default numbering,where <em class="emphasis">flag</em> determines use of number <em class="emphasis">n</em>.  </p><h4 class="refsect2">Flag</h4><table border="1" cellpadding="3"><tr><td><tt class="literal">0</tt></td><td><p><em class="emphasis">n</em> is a prefix to number (the default).</p></td></tr><tr><td><tt class="literal">1</tt></td><td><p><em class="emphasis">n</em> is a suffix. </p></td></tr><tr><td><tt class="literal">2</tt></td><td><p><em class="emphasis">n</em> replaces number.</p></td></tr></table><p></td></tr><tr><td valign="top"><a name=".FC">.FC</a></td><td><p><tt class="literal">.FC</tt> [<em class="replaceable"><tt>text</tt></em>]</p><p>Use <em class="emphasis">text</em> for formal closing.</p></td></tr><tr><td valign="top"><a name=".FD">.FD</a></td><td><p><tt class="literal">.FD</tt> [<em class="replaceable"><tt>n</tt></em>] [<tt class="literal">1</tt>]</p><p>Set default footnote format to <em class="emphasis">n</em>, as described in thenext table.  With a second argument of <tt class="literal">1</tt>, footnote numberingstarts over at 1 each time a first-level heading is encountered.</p><table border="1" cellpadding="3"><tr><th><em class="emphasis">Value</em></th><th><em class="emphasis">Hyphenation</em></th><th><em class="emphasis">Adjust</em></th><th><em class="emphasis">Text Indent</em></th><th><em class="emphasis">Label Justification</em></th></tr><tr><td><tt class="literal">0</tt></td><td>Off</td><td>On</td><td>On</td><td>Left</td></tr><tr><td><tt class="literal">1</tt></td><td>On</td><td>On</td><td>On</td><td>Left</td></tr><tr><td><tt class="literal">2</tt></td><td>Off</td><td>Off</td><td>On</td><td>Left</td></tr><tr><td><tt class="literal">3</tt></td><td>On</td><td>Off</td><td>On</td><td>Left</td></tr><tr><td><tt class="literal">4</tt></td><td>Off</td><td>On</td><td>Off</td><td>Left</td></tr><tr><td><tt class="literal">5</tt></td><td>On</td><td>On</td><td>Off</td><td>Left</td></tr><tr><td><tt class="literal">6</tt></td><td>Off</td><td>Off</td><td>Off</td><td>Left</td></tr><tr><td><tt class="literal">7</tt></td><td>On</td><td>Off</td><td>Off</td><td>Left</td></tr><tr><td><tt class="literal">8</tt></td><td>Off</td><td>On</td><td>On</td><td>Right</td></tr><tr><td><tt class="literal">9</tt></td><td>On</td><td>On</td><td>On</td><td>Right</td></tr><tr><td><tt class="literal">10</tt></td><td>Off</td><td>Off</td><td>On</td><td>Right</td></tr><tr><td><tt class="literal">11</tt></td><td>On</td><td>Off</td><td>On</td><td>Right</td></tr></table><p></td></tr><tr><td valign="top"><a name=".FE">.FE</a></td><td><p><tt class="literal">.FE</tt></p><p>End footnote.  See <b class="emphasis-bold">.FS</b>.</p></td></tr><tr><td valign="top"><a name=".FG">.FG</a></td><td><p><tt class="literal">.FG</tt> [<em class="replaceable"><tt>title</em>] [<em class="replaceable">n</em>] [<em class="replaceable">flag</tt></em>]</p><p>Figure <em class="emphasis">title</em> follows.Arguments optionally override default numbering,where <em class="emphasis">flag</em> determines use of number <em class="emphasis">n</em>.</p><h4 class="refsect2">Flag</h4><table border="1" cellpadding="3"><tr><td><tt class="literal">0</tt></td><td><p><em class="emphasis">n</em> is a prefix to number (the default). </p></td></tr><tr><td><tt class="literal">1</tt></td><td><p><em class="emphasis">n</em> is a suffix.</p></td></tr><tr><td><tt class="literal">2</tt></td><td><p><em class="emphasis">n</em> replaces number.</p></td></tr></table><p></td></tr><tr><td valign="top"><a name=".FS">.FS</a></td><td><p><tt class="literal">.FS</tt> [<em class="replaceable"><tt>c</tt></em>]</p><p>Start footnote using <em class="emphasis">c</em> as indicator.  Default is numbered footnote.  End with <tt class="literal">.FE</tt>.</p></td></tr><tr><td valign="top"><a name=".H">.H</a></td><td><p><tt class="literal">.H</tt> <em class="replaceable"><tt>n</em> [<em class="replaceable">heading</em>] [<em class="replaceable">suffix</tt></em>]</p><p>Print a numbered <em class="emphasis">heading</em> at level <em class="emphasis">n</em>,where <em class="emphasis">n</em> is from 1 to 7.The optional <em class="emphasis">suffix</em> is appended to the heading, andmay be used for footnote marks or other text that should not appear in the Table of Contents.See any of the following sections for more information.</p><h4 class="refsect2">Number Registers</h4><table border="1" cellpadding="3"><tr><td><tt class="literal">Ej</tt></td><td><p>Page eject.</p></td></tr><tr><td><tt class="literal">Hb</tt></td><td><p>Break after heading.</p></td></tr><tr><td><tt class="literal">Hc</tt></td><td><p>Centered heading.</p></td></tr><tr><td><tt class="literal">Hi</tt></td><td><p>Type of first paragraph after heading.</p></td></tr><tr><td><tt class="literal">Hs</tt></td><td><p>Space after heading.</p></td></tr><tr><td><tt class="literal">Hu</tt></td><td><p>Unnumbered headings.</p></td></tr></table><p><h4 class="refsect2">Strings</h4><table border="1" cellpadding="3"><tr><td><tt class="literal">HF</tt></td><td><p>Font control.</p></td></tr><tr><td><tt class="literal">HP</tt></td><td><p>Point size.</p></td></tr></table><p><h4 class="refsect2">Macros</h4><table border="1" cellpadding="3"><tr><td><tt class="literal">.HM</tt></td><td><p>Heading mark.</p></td></tr><tr><td><tt class="literal">.HU</tt></td><td><p>Unnumbered headings.</p></td></tr><tr><td><tt class="literal">.HX</tt>, <tt class="literal">.HY</tt>, <tt class="literal">.HZ</tt></td><td><p>User-supplied macros invoked during output of header.</p></td></tr></table><p></td></tr><tr><td valign="top"><a name=".HC">.HC</a></td><td><p><tt class="literal">.HC</tt> [<em class="replaceable"><tt>c</tt></em>]</p><p>Use character <em class="emphasis">c</em> as hyphenation indicator.</p></td></tr><tr><td valign="top"><a name=".HM">.HM</a></td><td><p><tt class="literal">.HM</tt> [<em class="replaceable"><tt>H1</em>] ... [<em class="replaceable">H7</tt></em>]</p><p>Set the heading mark style for the seven levels of headings.  Each headingcan be arabic (<tt class="literal">1</tt> or <tt class="literal">001</tt>), roman (<tt class="literal">i</tt>or <tt class="literal">I</tt>), or alphabetic (<tt class="literal">a</tt> or <tt class="literal">A</tt>).</p></td></tr><tr><td valign="top"><a name=".HU">.HU</a></td><td><p><tt class="literal">.HU</tt> <em class="replaceable"><tt>heading</tt></em></p><p>Unnumbered <em class="emphasis">heading</em> follows.  Same as <tt class="literal">.H</tt> except that noheading mark is printed (see number register <tt class="literal">Hu</tt>).</p></td></tr><tr><td valign="top"><a name=".HX">.HX</a></td><td><p><tt class="literal">.HX</tt> <em class="replaceable"><tt>dlevel rlevel text</tt></em></p><p>User-supplied exit macro executed before printing the heading.</p><p>The derived level <em class="emphasis">dlevel</em> is equal to the reallevel <em class="emphasis">rlevel</em> if <tt class="literal">.H</tt> is invokedby the user. If <tt class="literal">.HU</tt> is used, <em class="emphasis">dlevel</em> is equal to the value of the <tt class="literal">Hu</tt> register, and<em class="emphasis">rlevel</em> is zero.In both cases, <em class="emphasis">text</em> is the actual heading text.</p></td></tr><tr><td valign="top"><a name=".HY">.HY</a></td><td><p><tt class="literal">.HY</tt> <em class="replaceable"><tt>dlevel rlevel text</tt></em></p><p>User-supplied exit macro executed in middle of printing the heading.See <b class="emphasis-bold">.HX</b> for information about<em class="emphasis">dlevel</em>, <em class="emphasis">rlevel</em>,and <em class="emphasis">text</em>.</p></td></tr><tr><td valign="top"><a name=".HZ">.HZ</a></td><td><p><tt class="literal">.HZ</tt> <em class="replaceable"><tt>dlevel rlevel text</tt></em></p><p>User-supplied macro executed after printing the heading.See <b class="emphasis-bold">.HX</b> for information about<em class="emphasis">dlevel</em>, <em class="emphasis">rlevel</em>, and <em class="emphasis">text</em>.</p></td></tr><tr><td valign="top"><a name=".I">.I</a></td><td><p><tt class="literal">.I</tt> [<em class="replaceable"><tt>iarg</em>] [<em class="replaceable">parg</tt></em>]</p><p>Set <em class="emphasis">iarg</em> in italics (underline in <tt class="literal">nroff</tt>) and <em class="emphasis">parg</em> in previous font.  Up to six arguments. </p></td></tr><tr><td valign="top"><a name=".IB">.IB</a></td><td><p><tt class="literal">.IB</tt> [<em class="replaceable"><tt>iarg</em>] [<em class="replaceable">barg</tt></em>]</p><p>Set <em class="emphasis">iarg</em> in italics (underline in <tt class="literal">nroff</tt>) and <em class="emphasis">barg</em> in bold.  Up to six arguments.</p></td></tr><tr><td valign="top"><a name=".IR">.IR</a></td><td><p><tt class="literal">.IR</tt> [<em class="replaceable"><tt>iarg</em>] [<em class="replaceable">rarg</tt></em>]</p><p>Set <em class="emphasis">iarg</em> in italics (underline in <tt class="literal">nroff</tt>) and <em class="emphasis">rarg</em> in roman.  Up to six arguments.</p></td></tr><tr><td valign="top"><a name=".LB">.LB</a></td><td><p><tt class="literal">.LB</tt> <em class="replaceable"><tt>n m pad type</em> [<em class="replaceable">mark</em>] [<em class="replaceable">LI-space</em>] [<em class="replaceable">LB-space</tt></em>]</p><p>List beginning.  Allows complete control over list format.Begin each list item in the list with <tt class="literal">.LI</tt>;end the list with <tt class="literal">.LE</tt>:</p><dl><dt><i><em class="emphasis">n</em></tt></i></dt><dd>Text indent.</p></dd><dt><i><em class="emphasis">m</em></tt></i></dt><dd>Mark indent.</p></dd><dt><i><em class="emphasis">pad</em></tt></i></dt><dd>Padding associated with mark.</p></dd><dt><i><em class="emphasis">type</em></tt></i></dt><dd>If 0, use the specified <em class="emphasis">mark</em></tt>.If nonzero, and <em class="emphasis">mark</em> is<tt class="literal">1</tt>,<tt class="literal">A</tt>,<tt class="literal">a</tt>,<tt class="literal">I</tt>, or<tt class="literal">i</tt>,the list is automatically numbered or alphabetically sequenced.  In this case, <em class="emphasis">type</em> controls how <em class="emphasis">mark</em> is displayed.  For example, if <em class="emphasis">mark</em> is currently<tt class="literal">1</tt>,<em class="emphasis">type</em> has the following results.</p></dd></dl><table border="1" cellpadding="3"><tr><th><em class="emphasis">Type</em></th><th><em class="emphasis">Result</em></th></tr><tr><td><tt class="literal">1</tt></td><td>1.</td></tr><tr><td><tt class="literal">2</tt></td><td>1)</td></tr><tr><td><tt class="literal">3</tt></td><td>(1)</td></tr><tr><td><tt class="literal">4</tt></td><td>[1]</td></tr><tr><td><tt class="literal">5</tt></td><td>&lt;1&gt;</td></tr><tr><td><tt class="literal">6</tt></td><td>{1}</td></tr></table><p><dl><dt><i><em class="emphasis">mark</em></tt></i></dt><dd>Symbol or text to label each list entry.<em class="emphasis">mark</em></tt> can be null (creates hanging indent); a text string; or <tt class="literal">1</tt>,<tt class="literal">A</tt>, <tt class="literal">a</tt>, <tt class="literal">I</tt>, or <tt class="literal">i</tt> to create an automatically numbered or lettered list.See <b class="emphasis-bold">.AL</b>.</p></dd><dt><i><em class="emphasis">LI-space</em></tt></i></dt><dd>Number of blank lines to output between each following <tt class="literal">.LI</tt> macro.  Default is 1.</p></dd><dt><i><em class="emphasis">LB-space</em></tt></i></dt><dd>Number of blank lines to output by <tt class="literal">.LB</tt> macro itself.  Default is 0.</p></dd></dl></td></tr><tr><td valign="top"><a name=".LC">.LC</a></td><td><p><tt class="literal">.LC</tt> [<tt><em class="replaceable"><tt>n</tt></em></tt>]</p><p>Clear list level up to <em class="emphasis">n</em></tt>.</p>