# LaTeX2HTML 2022 (Released January 1, 2022)
# Associate images original text with physical files.
$key = q//;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 196.25ex; vertical-align: -0.70ex; " SRC="|."$dir".q|img21.png"
 ALT="\begin{exercise}
How did the author typeset the following diagram?
\begin{code}...
...und each cell.
\answercode
\answertext{Here is how: \displaycode}
\end{exercise}">|; 
$key = q/displaystylePOS;MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
 STYLE="height: 2.80ex; vertical-align: 176.50ex; " SRC="|."$dir".q|img8.png"
 ALT="$\displaystyle \POS$">|; 
$key = q/displaystyleXY;MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
 STYLE="height: 196.25ex; vertical-align: -0.12ex; " SRC="|."$dir".q|img9.png"
 ALT="$\displaystyle \XY$">|; 
$key = q/displaystyleddots;MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
 STYLE="height: 2.17ex; vertical-align: 175.73ex; " SRC="|."$dir".q|img3.png"
 ALT="$\displaystyle \ddots$">|; 
$key = q/displaystyledocode;MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
 STYLE="height: 2.38ex; vertical-align: 176.85ex; " SRC="|."$dir".q|img20.png"
 ALT="$\displaystyle \docode$">|; 
$key = q/displaystylevdots;MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
 STYLE="height: 196.25ex; vertical-align: -0.12ex; " SRC="|."$dir".q|img2.png"
 ALT="$\displaystyle \vdots$">|; 
$key = q/displaystylexymatrix;MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
 STYLE="height: 196.25ex; vertical-align: -0.12ex; " SRC="|."$dir".q|img1.png"
 ALT="$\displaystyle \xymatrix$">|; 
$key = q/displaystyle{textstylefrac{1}{2}};MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
 STYLE="height: 2.38ex; vertical-align: 176.05ex; " SRC="|."$dir".q|img7.png"
 ALT="$\displaystyle {\textstyle\frac{1}{2}}$">|; 
$key = q/star;MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
 STYLE="height: 1.68ex; vertical-align: 176.01ex; " SRC="|."$dir".q|img4.png"
 ALT="$\star$">|; 
$key = q/{code}displaymath{xyxymatrix{A&BC&D}dropfrm{-}dropcir<8pt>{}xydisplaymath{{code};MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 1.12ex; vertical-align: 177.73ex; " SRC="|."$dir".q|img5.png"
 ALT="\begin{code}
\begin{displaymath}\xy
\xymatrix{A&amp;B\ C&amp;D}
\drop\frm{-}
\drop\cir&lt;8pt&gt;{}
\endxy\end{displaymath}\end{code}">|; 
$key = q/{code}displaymath{xyxymatrix{APOS[];[d]**dir{~},[];[dr]**dir{-}B&CPOS[];[l]**dir{.}}xydisplaymath{{code};MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 2.38ex; vertical-align: 176.27ex; " SRC="|."$dir".q|img11.png"
 ALT="\begin{code}
\begin{displaymath}\xy
\xymatrix{
A \POS[];[d]**\dir{&nbsp;},
[];[dr]**\dir{-} \\\\
B &amp; C \POS[];[l]**\dir{.} }
\endxy\end{displaymath}\end{code}">|; 
$key = q/{code}everyentry={dropcir{}}xyxymatrix{APOS[];[r]**dir{~}&B}xy{code};MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 2.17ex; vertical-align: 176.48ex; " SRC="|."$dir".q|img19.png"
 ALT="\begin{code}
\everyentry={\drop\cir{}}
\xy\xymatrix{
A \POS[];[r]**\dir{&nbsp;} &amp; B
}\endxy
\end{code}">|; 
$key = q/{defs1}|*|<object><decor>{defs1};AAT/;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 2.24ex; vertical-align: 176.61ex; " SRC="|."$dir".q|img16.png"
 ALT="\begin{defs1}
\vert*\vert &lt;object&gt; &lt;decor&gt;
\end{defs1}">|; 
$key = q/{defs1}|@|<direction>cr{defs1};AAT/;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 2.17ex; vertical-align: 176.61ex; " SRC="|."$dir".q|img13.png"
 ALT="\begin{defs1}
\vert@\vert&lt;direction&gt; \cr
\end{defs1}">|; 
$key = q/{defs1}|entrymodifiers={|<stuff>|}|{defs1};AAT/;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 2.38ex; vertical-align: 176.40ex; " SRC="|."$dir".q|img15.png"
 ALT="\begin{defs1}
\vert\entrymodifiers={\vert &lt;stuff&gt; \vert}\vert
\end{defs1}">|; 
$key = q/{defs1}|everyentry={|<decor>|}|{defs1};AAT/;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 2.94ex; vertical-align: 175.91ex; " SRC="|."$dir".q|img18.png"
 ALT="\begin{defs1}
\vert\everyentry={\vert &lt;decor&gt; \vert}\vert
\end{defs1}">|; 
$key = q/{defs1}|xymatrixrowsep|<add~op>|{|<dimen>|}|cr|xymatrixcolsep|<add~op>|{|<dimen>|}|cr{defs1};MSF=1.6;AAT/;
$cached_env_img{$key} = q|<IMG
  STYLE="height: 2.38ex; vertical-align: 176.40ex; " SRC="|."$dir".q|img12.png"
 ALT="\begin{defs1}
\vert\xymatrixrowsep\vert &lt;add&nbsp;op&gt; \vert{\vert&lt;dimen&gt;\vert}\vert ...
...\vert\xymatrixcolsep\vert &lt;add&nbsp;op&gt; \vert{\vert&lt;dimen&gt;\vert}\vert \cr
\end{defs1}">|;