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    <title>MaplePrimes - comments on Post, Polygons of the matches</title>
    <link>http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches</link>
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    <copyright>2026 Maplesoft, A Division of Waterloo Maple Inc.</copyright>
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    <lastBuildDate>Tue, 09 Jun 2026 12:18:38 GMT</lastBuildDate>
    <pubDate>Tue, 09 Jun 2026 12:18:38 GMT</pubDate>
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    <description>The latest comments added to the Post, Polygons of the matches</description>
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      <url>http://www.mapleprimes.com/images/mapleprimeswhite.jpg</url>
      <title>MaplePrimes - comments on Post, Polygons of the matches</title>
      <link>http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches</link>
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    <item>
      <title>Error communication</title>
      <link>http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches?ref=Feed:MaplePrimes:Polygons of the matches:Comments#comment142885</link>
      <itunes:summary>&lt;p&gt;Executing your code, I obtain&lt;/p&gt;
&lt;p&gt;&lt;span style="text-decoration: underline;"&gt;Error, (in plottools:-curve) wrong type of arguments&lt;/span&gt;&lt;br&gt;&lt;span style="text-decoration: underline;"&gt;Error, (in plots:-display) expecting plot structure but received: B[1]&lt;/span&gt;&lt;br&gt;&lt;span style="text-decoration: underline;"&gt;Error, (in plots:-display) element [1, 1] of the rtable is not a valid plot structure&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;See &lt;a href="/view.aspx?sf=142885/452759/executed_code.mw"&gt;executed_code.mw&lt;/a&gt;&lt;br&gt;&lt;br&gt;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, Polygons of the matches</description>
      <guid>142885</guid>
      <pubDate>Fri, 01 Feb 2013 01:52:40 Z</pubDate>
      <itunes:author>Markiyan Hirnyk</itunes:author>
      <author>Markiyan Hirnyk</author>
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    <item>
      <title>Correction</title>
      <link>http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches?ref=Feed:MaplePrimes:Polygons of the matches:Comments#comment142887</link>
      <itunes:summary>&lt;p&gt;&lt;a href="http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches#comment142885"&gt;@Markiyan Hirnyk&lt;/a&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;In the example, replace&amp;nbsp;&lt;strong&gt; Polygon&amp;nbsp;&lt;/strong&gt; into &amp;nbsp;&lt;strong&gt;Polygons&lt;/strong&gt; . I found no link to edit my post.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;PS. Link found and the bug was fixed.&amp;nbsp;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, Polygons of the matches</description>
      <guid>142887</guid>
      <pubDate>Fri, 01 Feb 2013 02:06:03 Z</pubDate>
      <itunes:author>Kitonum</itunes:author>
      <author>Kitonum</author>
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    <item>
      <title>OK</title>
      <link>http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches?ref=Feed:MaplePrimes:Polygons of the matches:Comments#comment142891</link>
      <itunes:summary>&lt;p&gt;&lt;a href="http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches#comment142887"&gt;@Kitonum&lt;/a&gt; Now it works. However, the error communication&lt;/p&gt;
&lt;p&gt;&lt;span style="text-decoration: underline;"&gt;Error, (in plottools:-curve) wrong type of arguments&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;is still produced. See &lt;a href="/view.aspx?sf=142891/452772/executed_code2.mw"&gt;executed_code2.mw&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;PS. Replaced N:=12 by N:=10, I obtain the same output.&lt;br&gt;&lt;br&gt;&lt;br&gt;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, Polygons of the matches</description>
      <guid>142891</guid>
      <pubDate>Fri, 01 Feb 2013 02:22:03 Z</pubDate>
      <itunes:author>Markiyan Hirnyk</itunes:author>
      <author>Markiyan Hirnyk</author>
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      <title>Re</title>
      <link>http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches?ref=Feed:MaplePrimes:Polygons of the matches:Comments#comment142905</link>
      <itunes:summary>&lt;p&gt;&lt;a href="http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches#comment142891"&gt;@Markiyan Hirnyk&lt;/a&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Thanks for the marked discrepancy. This happens when there is only one variant as in your example &amp;nbsp;&lt;strong&gt;N=10, S=6 &lt;/strong&gt;.&lt;/p&gt;
&lt;p&gt;Replace the lines&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;T1:=Categorize(f, T0);&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;T:=[seq(T1[i,1], i=1..nops([T1]))]: &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;by&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;T1:=[Categorize(f, T0)];&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;T:=[seq(T1[i,1], i=1..nops(T1))]: &lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;
&lt;p&gt;&amp;nbsp;Now the procedure is working correctly in all cases. &amp;nbsp;As for visualization, the code for it is an particular case, and it &amp;nbsp;is written &lt;strong&gt;for N=12, S=6 only&amp;nbsp;&lt;/strong&gt;(here there are 35 variants).&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, Polygons of the matches</description>
      <guid>142905</guid>
      <pubDate>Fri, 01 Feb 2013 05:14:35 Z</pubDate>
      <itunes:author>Kitonum</itunes:author>
      <author>Kitonum</author>
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      <title>Polyominoes</title>
      <link>http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches?ref=Feed:MaplePrimes:Polygons of the matches:Comments#comment142908</link>
      <itunes:summary>&lt;p&gt;Another great algorithm, Kitonum. As a point of reference, these structures are formally called (in English) "polyominoes" (rather than "polygons of the match"), and there is much literature on them.&lt;/p&gt;
&lt;p&gt;Could you please edit the first paragraph of your post?&amp;nbsp; The right sides of the lines are cut off; they did not word wrap.&lt;/p&gt;
&lt;p&gt;And how did you export an array of plots from Maple? Perhaps by using an external plotter? When I try (in Standard GUI), it only lets me select one cell.&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, Polygons of the matches</description>
      <guid>142908</guid>
      <pubDate>Fri, 01 Feb 2013 05:49:57 Z</pubDate>
      <itunes:author>Carl Love</itunes:author>
      <author>Carl Love</author>
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      <title>Vote up</title>
      <link>http://www.mapleprimes.com/posts/142884-Polygons-Of-The-Matches?ref=Feed:MaplePrimes:Polygons of the matches:Comments#comment142917</link>
      <itunes:summary>&lt;p&gt;Now the Polygons procedure works without any communication. As far as I understand it, you use the idea from&lt;br&gt;&lt;a href="http://www.mapleprimes.com/questions/142492-How-Many-Routes-In-A-4x4-Square#comment142513"&gt;http://www.mapleprimes.com/questions/142492-How-Many-Routes-In-A-4x4-Square#comment142513&lt;/a&gt; . It would be interesting to read your comments concerning new moments in Polygons&amp;nbsp; with respect to Routes. A good code is a commented code. Also see &lt;a href="http://en.wikipedia.org/wiki/Polyomino"&gt;http://en.wikipedia.org/wiki/Polyomino&lt;/a&gt; .&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, Polygons of the matches</description>
      <guid>142917</guid>
      <pubDate>Fri, 01 Feb 2013 12:38:03 Z</pubDate>
      <itunes:author>Markiyan Hirnyk</itunes:author>
      <author>Markiyan Hirnyk</author>
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