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	<title>Professores Online &#187; martinsrubinho</title>
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		<title>Resolução de sistemas lineares calculo numérico</title>
		<link>https://www.professoronline.net/resolucao-de-sistemas-lineares-calculo-numerico/</link>
		<comments>https://www.professoronline.net/resolucao-de-sistemas-lineares-calculo-numerico/#comments</comments>
		<pubDate>Thu, 02 Oct 2014 18:52:12 +0000</pubDate>
		<dc:creator><![CDATA[martinsrubinho]]></dc:creator>
				<category><![CDATA[Informática]]></category>
		<category><![CDATA[cálculo]]></category>
		<category><![CDATA[de]]></category>
		<category><![CDATA[lineares]]></category>
		<category><![CDATA[numerico]]></category>
		<category><![CDATA[resolução]]></category>
		<category><![CDATA[sistemas]]></category>

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		<description><![CDATA[Dado um sistema linear de n=200 equações i=1; a(i,i)=1; a(i,i+1)=1; a(i,n+1)=150; for i=2:(n/2) a(i,i-1)=1; a(i,i)=3; a(i,i+1)=1; a(i,i+100)=1; a(i,n+1)=100; end for i=(n/2)+1:n-1 a(i,i-100)=1; a(i,i-1)=1; a(i,i)=3; a(i,i+1)=1; a(i,n+1)=200; end i=n; a(i,i-1)=1; a(i,i)=1; a(i,n+1)=300; a) Avaliar se o sistema tem convergencia garantida b) determinar a solução pelo método direto de gauss a partir da matriz expandida, calcular o [&#8230;]]]></description>
				<content:encoded><![CDATA[<p>Dado um sistema linear de n=200 equações<br />
i=1;<br />
		a(i,i)=1; a(i,i+1)=1; a(i,n+1)=150;<br />
	for i=2:(n/2)<br />
		a(i,i-1)=1; a(i,i)=3; a(i,i+1)=1; a(i,i+100)=1; a(i,n+1)=100;<br />
	end<br />
	for i=(n/2)+1:n-1<br />
		a(i,i-100)=1; a(i,i-1)=1; a(i,i)=3; a(i,i+1)=1; a(i,n+1)=200;<br />
	end<br />
	i=n;<br />
		a(i,i-1)=1; a(i,i)=1; a(i,n+1)=300;</p>
<p>a) Avaliar se o sistema tem convergencia garantida</p>
<p>b) determinar a solução pelo método direto de gauss a partir da matriz expandida, calcular o residuo máximo das 200 equações do sistema original. Em uma segunda versão, calcule via contador o numero total de operações em ponto flutuante utilizadas</p>
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