Misc/abrash-black-book
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Retidy, removing align=left from headings and empty paragraphs

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James Gregory 2013-12-30 15:37:13 +11:00
commit a96a114403
362 changed files with 8472 additions and 5040 deletions
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17-04.html
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@ -1,5 +1,4 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
@ -19,17 +18,21 @@
<center>
<table border="1">
<tr>
<td><a href="17-03.html">Previous</a></td>
<td>
<a href="17-03.html">Previous</a>
</td>
<td><a href="index.html">Table of Contents</a></td>
<td>
<a href="index.html">Table of Contents</a>
</td>
<td><a href="17-05.html">Next</a></td>
<td>
<a href="17-05.html">Next</a>
</td>
</tr>
</table>
</center>
<p><br /></p>
<p>There&rsquo;s a kicker here, though, and that&rsquo;s the counting of neighbors for cells at the edge of the cellmap. When cellmap wrapping is enabled (so that the cellmap becomes essentially a toroid, with each edge joined seamlessly to the opposite edge, as opposed to having a border of off-cells), neighbors that reside on the other edge of the cellmap can&rsquo;t be accessed by the standard fixed offset, as shown in Figure 17.1. So, in general, we could improve performance by hard-wiring our neighbor-counting for the bit-per-cell cellmap format, but it seems we&rsquo;d need a lot of conditional code to handle wrapping, and that would slow things back down again.</p>
<p><a id="Fig1"><img src="images/17-01.jpg" /><br />
@ -207,16 +210,20 @@ void cellmap::next_generation(cellmap&amp; next_map)
}
</pre>
<p><br /></p>
<center>
<table border="1">
<tr>
<td><a href="17-03.html">Previous</a></td>
<td>
<a href="17-03.html">Previous</a>
</td>
<td><a href="index.html">Table of Contents</a></td>
<td>
<a href="index.html">Table of Contents</a>
</td>
<td><a href="17-05.html">Next</a></td>
<td>
<a href="17-05.html">Next</a>
</td>
</tr>
</table>
</center>