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		<id>http://www.convexoptimization.com/wikimization/index.php?action=history&amp;feed=atom&amp;title=Memoryless_Weak_Nonlinearity_Composition</id>
		<title>Memoryless Weak Nonlinearity Composition - Revision history</title>
		<link rel="self" type="application/atom+xml" href="http://www.convexoptimization.com/wikimization/index.php?action=history&amp;feed=atom&amp;title=Memoryless_Weak_Nonlinearity_Composition"/>
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		<updated>2026-05-25T04:15:32Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://www.convexoptimization.com/wikimization/index.php?title=Memoryless_Weak_Nonlinearity_Composition&amp;diff=3314&amp;oldid=prev</id>
		<title>Ranjelin at 05:10, 3 December 2024</title>
		<link rel="alternate" type="text/html" href="http://www.convexoptimization.com/wikimization/index.php?title=Memoryless_Weak_Nonlinearity_Composition&amp;diff=3314&amp;oldid=prev"/>
				<updated>2024-12-03T05:10:06Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;

			&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;tr&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;←Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 05:10, 3 December 2024&lt;/td&gt;
			&lt;/tr&gt;
		&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% zeta : memoryless weak power series z(x), first-order leading: [zeta_1, zeta_2 ... zeta_Nt]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% zeta : memoryless weak power series z(x), first-order leading: [zeta_1, zeta_2 ... zeta_Nt]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% xi   : memoryless weak power series y(z), first-order leading: [  xi_1,   xi_2 ...   xi_Nh]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% xi   : memoryless weak power series y(z), first-order leading: [  xi_1,   xi_2 ...   xi_Nh]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;-&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% Mapping coefficients constituting nonlinearity composition zeta &amp;amp; xi are not commutative.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% Mapping coefficients&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;constituting nonlinearity composition&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;zeta &amp;amp; xi are not commutative.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;function y = composite2(zeta, xi, precision)&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;function y = composite2(zeta, xi, precision)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;   if nargin &amp;lt; 3, precision = 34; end&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;   if nargin &amp;lt; 3, precision = 34; end&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ranjelin</name></author>	</entry>

	<entry>
		<id>http://www.convexoptimization.com/wikimization/index.php?title=Memoryless_Weak_Nonlinearity_Composition&amp;diff=3313&amp;oldid=prev</id>
		<title>Ranjelin at 00:59, 3 December 2024</title>
		<link rel="alternate" type="text/html" href="http://www.convexoptimization.com/wikimization/index.php?title=Memoryless_Weak_Nonlinearity_Composition&amp;diff=3313&amp;oldid=prev"/>
				<updated>2024-12-03T00:59:16Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;

			&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;tr&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;←Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 00:59, 3 December 2024&lt;/td&gt;
			&lt;/tr&gt;
		&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;pre&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;pre&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;-&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% Compute y(z(x)) coefficients of x given mapping coefficients xi &lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;and zeta&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% Compute &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;composition &lt;/ins&gt;y(z(x)) coefficients of x given mapping coefficients &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;zeta &amp;amp; &lt;/ins&gt;xi.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;-&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% &lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;xi   &lt;/del&gt;: &lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;polynomial y(&lt;/del&gt;z), first order leading: [&lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;xi_1&lt;/del&gt;, &lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;  xi_2,   &lt;/del&gt;...]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;zeta &lt;/ins&gt;: &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;memoryless weak power series &lt;/ins&gt;z&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;(x&lt;/ins&gt;), first&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;-&lt;/ins&gt;order leading: [&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;zeta_1&lt;/ins&gt;, &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;zeta_2 &lt;/ins&gt;... &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;zeta_Nt&lt;/ins&gt;]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;-&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% &lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;zeta &lt;/del&gt;: &lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;polynomial z&lt;/del&gt;(&lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;x&lt;/del&gt;), first order leading: [&lt;del style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;zeta_1, zeta_2&lt;/del&gt;, ...]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;% &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;xi   &lt;/ins&gt;: &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;memoryless weak power series y&lt;/ins&gt;(&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;z&lt;/ins&gt;), first&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;-&lt;/ins&gt;order leading: [ &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt; xi_1&lt;/ins&gt;, &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;  xi_2 &lt;/ins&gt;... &lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;  xi_Nh&lt;/ins&gt;]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;nbsp;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;% Mapping coefficients constituting nonlinearity composition zeta &amp;amp; xi are not commutative.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;function y = composite2(zeta, xi, precision)&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;function y = composite2(zeta, xi, precision)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;   if nargin &amp;lt; 3, precision = 34; end&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;   if nargin &amp;lt; 3, precision = 34; end&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ranjelin</name></author>	</entry>

	<entry>
		<id>http://www.convexoptimization.com/wikimization/index.php?title=Memoryless_Weak_Nonlinearity_Composition&amp;diff=3312&amp;oldid=prev</id>
		<title>Ranjelin: New page: &lt;pre&gt; % Compute y(z(x)) coefficients of x given mapping coefficients xi and zeta. % xi   : polynomial y(z), first order leading: [xi_1,   xi_2,   ...] % zeta : polynomial z(x), first order...</title>
		<link rel="alternate" type="text/html" href="http://www.convexoptimization.com/wikimization/index.php?title=Memoryless_Weak_Nonlinearity_Composition&amp;diff=3312&amp;oldid=prev"/>
				<updated>2024-11-23T03:11:32Z</updated>
		
		<summary type="html">&lt;p&gt;New page: &amp;lt;pre&amp;gt; % Compute y(z(x)) coefficients of x given mapping coefficients xi and zeta. % xi   : polynomial y(z), first order leading: [xi_1,   xi_2,   ...] % zeta : polynomial z(x), first order...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;pre&amp;gt;&lt;br /&gt;
% Compute y(z(x)) coefficients of x given mapping coefficients xi and zeta.&lt;br /&gt;
% xi   : polynomial y(z), first order leading: [xi_1,   xi_2,   ...]&lt;br /&gt;
% zeta : polynomial z(x), first order leading: [zeta_1, zeta_2, ...]&lt;br /&gt;
function y = composite2(zeta, xi, precision)&lt;br /&gt;
   if nargin &amp;lt; 3, precision = 34; end&lt;br /&gt;
   mp.Digits(precision);  %Advanpix Multiprecision Toolbox&lt;br /&gt;
   zeta = zeta(:)'; &lt;br /&gt;
   xi   =   xi(:)';&lt;br /&gt;
   y       = mp('0');&lt;br /&gt;
   z_power = mp('1'); &lt;br /&gt;
   for power = 1:numel(xi)&lt;br /&gt;
      z_power = conv(z_power, zeta); &lt;br /&gt;
      term = [zeros(1,power-1,'mp'), xi(power)*z_power];&lt;br /&gt;
      y    = term + [y, zeros(1,numel(term)-numel(y),'mp')];&lt;br /&gt;
   end&lt;br /&gt;
end&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;/div&gt;</summary>
		<author><name>Ranjelin</name></author>	</entry>

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