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    <title>MaplePrimes - comments on Post, MRB Constant-D</title>
    <link>http://www.mapleprimes.com/posts/37056-MRB-ConstantD</link>
    <language>en-us</language>
    <copyright>2026 Maplesoft, A Division of Waterloo Maple Inc.</copyright>
    <generator>Maplesoft Document System</generator>
    <lastBuildDate>Fri, 12 Jun 2026 08:41:58 GMT</lastBuildDate>
    <pubDate>Fri, 12 Jun 2026 08:41:58 GMT</pubDate>
    <itunes:subtitle />
    <itunes:summary />
    <description>The latest comments added to the Post, MRB Constant-D</description>
    <image>
      <url>http://www.mapleprimes.com/images/mapleprimeswhite.jpg</url>
      <title>MaplePrimes - comments on Post, MRB Constant-D</title>
      <link>http://www.mapleprimes.com/posts/37056-MRB-ConstantD</link>
    </image>
    <item>
      <title>Attached Worksheet</title>
      <link>http://www.mapleprimes.com/posts/37056-MRB-ConstantD?ref=Feed:MaplePrimes:MRB Constant-D:Comments#comment64896</link>
      <itunes:summary>&lt;p&gt;I was so excited I forgot to attach the worksheet. Here it is.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://mapleoracles.maplesoft.com:8080/maplenet/primes/worksheet/565_near0.mw"&gt;View 565_near0.mw on MapleNet&lt;/a&gt; or &lt;a href="http://www.mapleprimes.com/files/565_near0.mw"&gt;Download 565_near0.mw&lt;/a&gt;&lt;br /&gt;
&lt;a href="http://www.mapleprimes.com/viewfile/3575"&gt;View file details&lt;/a&gt;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, MRB Constant-D</description>
      <guid>64896</guid>
      <pubDate>Fri, 10 Jul 2009 02:52:45 Z</pubDate>
      <itunes:author>Marvin Ray Burns</itunes:author>
      <author>Marvin Ray Burns</author>
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    <item>
      <title>Use complex numbers for n</title>
      <link>http://www.mapleprimes.com/posts/37056-MRB-ConstantD?ref=Feed:MaplePrimes:MRB Constant-D:Comments#comment64897</link>
      <itunes:summary>&lt;p&gt;See what happens when you use a domain of complex numbers for n:&lt;/p&gt;
&lt;p&gt;&lt;a href="http://mapleoracles.maplesoft.com:8080/maplenet/primes/worksheet/565_near0_complex.mw"&gt;View 565_near0_complex.mw on MapleNet&lt;/a&gt; or &lt;a href="http://beta.mapleprimes.com/files/565_near0_complex.mw"&gt;Download 565_near0_complex.mw&lt;/a&gt;&lt;br /&gt;
&lt;a href="http://beta.mapleprimes.com/viewfile/3586"&gt;View file details&lt;/a&gt;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, MRB Constant-D</description>
      <guid>64897</guid>
      <pubDate>Sun, 19 Jul 2009 04:14:03 Z</pubDate>
      <itunes:author>Marvin Ray Burns</itunes:author>
      <author>Marvin Ray Burns</author>
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    <item>
      <title>Try this oneliner!</title>
      <link>http://www.mapleprimes.com/posts/37056-MRB-ConstantD?ref=Feed:MaplePrimes:MRB Constant-D:Comments#comment64898</link>
      <itunes:summary>&lt;p&gt;&lt;img src="file:///C:/DOCUME~1/Owner/LOCALS~1/Temp/moz-screenshot-34.jpg" alt="" /&gt;&lt;img src="file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/moz-screenshot-35.jpg" alt="" /&gt;&lt;maple&gt;&lt;/maple&gt;&lt;/p&gt;
&lt;p&gt;restart; for Digits from 2 to 20 do m := evalf(sum((-1)^i*(i^(1/i)-1), i = 1 .. infinity)); print(evalf(1+sin(5060936308*Pi/m), Digits+5)) end do:restart:&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Notice how suddenly the result drops to 10^(-21).&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, MRB Constant-D</description>
      <guid>64898</guid>
      <pubDate>Wed, 22 Jul 2009 05:25:26 Z</pubDate>
      <itunes:author>Marvin Ray Burns</itunes:author>
      <author>Marvin Ray Burns</author>
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    <item>
      <title>Another set of near-integer equations</title>
      <link>http://www.mapleprimes.com/posts/37056-MRB-ConstantD?ref=Feed:MaplePrimes:MRB Constant-D:Comments#comment64899</link>
      <itunes:summary>&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Let p be any odd number, as an example, say abs(P)&amp;lt;100, then -sin(996509389*p*Pi/m)&amp;nbsp; = &amp;quot;+/-1. &amp;quot; .&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;To see this try&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;restart; Digits := 62: m := evalf(sum((-1)^i*(i^(1/i)-1), i = 1 .. infinity)):for n from -100 to 100 do p := 2*n-1; printf(&amp;quot;%a %a\n&amp;quot;, p, evalf(-sin(996509389*p*Pi/m))) end do:&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;And with half the accuracy,&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;let p be any even number, as an example, say abs(P)&amp;lt;1000, then -sin(996509389*p*Pi/m) =0.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;To see this try&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;restart; Digits := 62: m := evalf(sum((-1)^i*(i^(1/i)-1), i = 1 .. infinity)):for n from -100 to 100 do p := 2*n; printf(&amp;quot;%a %a\n&amp;quot;, p, evalf(-sin(996509389*p*Pi/m))) end do:&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, MRB Constant-D</description>
      <guid>64899</guid>
      <pubDate>Sun, 29 Nov 2009 09:08:33 Z</pubDate>
      <itunes:author>Marvin Ray Burns</itunes:author>
      <author>Marvin Ray Burns</author>
    </item>
    <item>
      <title>Time for a question</title>
      <link>http://www.mapleprimes.com/posts/37056-MRB-ConstantD?ref=Feed:MaplePrimes:MRB Constant-D:Comments#comment64900</link>
      <itunes:summary>&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;To sum up what I've noticed so far.&lt;/p&gt;
&lt;p&gt;Concerning the MRB constant,&lt;/p&gt;
&lt;p&gt;m := evalf(sum((-1)^i*(i^(1/i)-1), i = 1 .. infinity)):&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;From the first&amp;nbsp; and fourth posts I have come up the following:&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;restart; Digits := 22; m := evalf(sum((-1)^i*(i^(1/i)-1), i = 1 .. infinity)); for n from -10 to 10 do p := n; printf(&amp;quot;%a %a\n&amp;quot;, p, evalf(sin(Pi*(5060936308+78389363*floor(n))/m))) end do&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;That gives the first set of near-integer equations represented by:&lt;/p&gt;
&lt;p&gt;-10 &amp;nbsp;&amp;nbsp; -.9999999999999853247439&lt;br /&gt;
-9&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999881012605&lt;br /&gt;
-8&amp;nbsp;&amp;nbsp; -.9999999999999905882557&lt;br /&gt;
-7 &amp;nbsp;&amp;nbsp; -.9999999999999927828150&lt;br /&gt;
-6 &amp;nbsp;&amp;nbsp; -.9999999999999946864810&lt;br /&gt;
-5 &amp;nbsp;&amp;nbsp; -.9999999999999963001138&lt;br /&gt;
-4&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999976218224&lt;br /&gt;
-3&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999986526377&lt;br /&gt;
-2&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999993929081&lt;br /&gt;
-1 &amp;nbsp;&amp;nbsp; -.9999999999999998417661&lt;br /&gt;
0&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999999997307&lt;br /&gt;
1&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999998668019&lt;br /&gt;
2&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999994426460&lt;br /&gt;
3&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999987277599&lt;br /&gt;
4&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999977219805&lt;br /&gt;
5 &amp;nbsp;&amp;nbsp; -.9999999999999964244621&lt;br /&gt;
6 &amp;nbsp;&amp;nbsp; -.9999999999999948367254&lt;br /&gt;
7 &amp;nbsp;&amp;nbsp; -.9999999999999929580953&lt;br /&gt;
8&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999907872146&lt;br /&gt;
9 &amp;nbsp;&amp;nbsp; -.9999999999999883266272&lt;br /&gt;
10 &amp;nbsp;&amp;nbsp; -.9999999999999855751465&lt;br /&gt;
&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Form the fifth post:&lt;/p&gt;
&lt;p&gt;&lt;img src="file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/moz-screenshot-11.png" alt="" /&gt;restart; Digits := 22; m := evalf(sum((-1)^i*(i^(1/i)-1), i = 1 .. infinity)); for n from -10 to 10 do p := 2*n-1; printf(&amp;quot;%a %a\n&amp;quot;, p, evalf(-sin(996509389*p*Pi/m))) end do:&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Wich gives the second set:&lt;/p&gt;
&lt;p&gt;-21 &amp;nbsp;&amp;nbsp; -.9999999999999972039693&lt;br /&gt;
-19&amp;nbsp;&amp;nbsp;&amp;nbsp; .9999999999999977153722&lt;br /&gt;
-17 &amp;nbsp;&amp;nbsp; -.9999999999999981691216&lt;br /&gt;
-15 &amp;nbsp;&amp;nbsp; .9999999999999985780284&lt;br /&gt;
-13 &amp;nbsp; -.9999999999999989307085&lt;br /&gt;
-11 &amp;nbsp;&amp;nbsp; .9999999999999992332081&lt;br /&gt;
-9&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999994855272&lt;br /&gt;
-7 &amp;nbsp;&amp;nbsp; .9999999999999996901603&lt;br /&gt;
-5 &amp;nbsp;&amp;nbsp; -.9999999999999998417661&lt;br /&gt;
-3 &amp;nbsp;&amp;nbsp; .9999999999999999429076&lt;br /&gt;
-1 &amp;nbsp;&amp;nbsp; -.9999999999999999936564&lt;br /&gt;
1 &amp;nbsp;&amp;nbsp; .9999999999999999936564&lt;br /&gt;
3&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999999429076&lt;br /&gt;
5&amp;nbsp;&amp;nbsp;&amp;nbsp; .9999999999999998417661&lt;br /&gt;
7&amp;nbsp;&amp;nbsp;&amp;nbsp; -.9999999999999996901603&lt;br /&gt;
9 &amp;nbsp;&amp;nbsp; .9999999999999994855272&lt;br /&gt;
11 &amp;nbsp;&amp;nbsp; -.9999999999999992332081&lt;br /&gt;
13 &amp;nbsp;&amp;nbsp; .9999999999999989307085&lt;br /&gt;
15 &amp;nbsp;&amp;nbsp; -.9999999999999985780284&lt;br /&gt;
17 &amp;nbsp;&amp;nbsp; .9999999999999981691216&lt;br /&gt;
19 &amp;nbsp;&amp;nbsp; -.9999999999999977153722&lt;/p&gt;
&lt;p&gt;My question to any one who knows is, aren't these two sets independent?&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;I mean something like, neither one is true just because the other is, right?&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;The first involved&lt;/p&gt;
&lt;p&gt;sin(Pi*(5060936308+78389363*floor(n))/m)&lt;/p&gt;
&lt;p&gt;The second involved&lt;/p&gt;
&lt;p&gt;sin(996509389*p*Pi/m)&lt;/p&gt;
&lt;p&gt;Am I correct in figuring that the periods should be totally unrelated?&lt;/p&gt;
&lt;p&gt;And has anyone here had any analysis that explains why these two sets exists? And do you think they can help me find a closed form for the MRB constant?&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, MRB Constant-D</description>
      <guid>64900</guid>
      <pubDate>Mon, 30 Nov 2009 07:03:31 Z</pubDate>
      <itunes:author>Marvin Ray Burns</itunes:author>
      <author>Marvin Ray Burns</author>
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    <item>
      <title> Further numeric</title>
      <link>http://www.mapleprimes.com/posts/37056-MRB-ConstantD?ref=Feed:MaplePrimes:MRB Constant-D:Comments#comment64901</link>
      <itunes:summary>&lt;p&gt;&amp;nbsp;Further numeric investigation shows the coefficients 5060936308, 78389363 and 996509389 can be replaced by 1/2 and 1/3 of their value and still produce remarkable results.&lt;/p&gt;
&lt;p&gt;&lt;a href="http://beta.mapleprimes.com:8080/maplenet/primes/worksheet/565_MRB_various_fractions.mw"&gt;View 565_MRB_various_fractions.mw on MapleNet&lt;/a&gt; or &lt;a href="../../../../files/565_MRB_various_fractions.mw"&gt;Download 565_MRB_various_fractions.mw&lt;/a&gt;&lt;br /&gt;
&lt;a href="../../../../viewfile/3871"&gt;View file details&lt;/a&gt;&lt;/p&gt;</itunes:summary>
      <description>The latest comments added to the Post, MRB Constant-D</description>
      <guid>64901</guid>
      <pubDate>Tue, 01 Dec 2009 06:26:23 Z</pubDate>
      <itunes:author>Marvin Ray Burns</itunes:author>
      <author>Marvin Ray Burns</author>
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