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		<title>Propaganda dos anos 50 e 60 para as redes sociais.</title>
		<link>http://danieldonda.wordpress.com/2012/01/08/propaganda-dos-anos-50-e-60-para-as-redes-sociais/</link>
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		<pubDate>Sun, 08 Jan 2012 18:24:25 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

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		<description><![CDATA[Facebook Compartilhe abundantemente retratos, experiências, textos e tudo mais que há com vossos amigos e familiares. O Facebook é a última maravilha em redes sociais. Para o lazer ou para o labor, o Facebook é uma arma que não conhece substitutos. Um exemplo eloqüente, econômico e moderno de comunicação adequada aos dias atuais &#160; Twitter [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=danieldonda.wordpress.com&amp;blog=4581703&amp;post=657&amp;subd=danieldonda&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><strong>Facebook</strong></p>
<p><a href="http://danieldonda.files.wordpress.com/2012/01/facebook_vintage_momapropaganda1.jpg"><img style="background-image:none;border-bottom:0;border-left:0;padding-left:0;padding-right:0;display:inline;border-top:0;border-right:0;padding-top:0;" title="Facebook_vintage_MomaPropaganda" border="0" alt="Facebook_vintage_MomaPropaganda" src="http://danieldonda.files.wordpress.com/2012/01/facebook_vintage_momapropaganda_thumb1.jpg?w=504&#038;h=674" width="504" height="674" /></a></p>
<p>Compartilhe abundantemente retratos, experiências, textos e tudo mais que há com vossos amigos e familiares. O Facebook é a última maravilha em redes sociais. Para o lazer ou para o labor, o Facebook é uma arma que não conhece substitutos. Um exemplo eloqüente, econômico e moderno de comunicação adequada aos dias atuais</p>
<p>&#160;</p>
<p><strong>Twitter</strong></p>
<p><a href="http://danieldonda.files.wordpress.com/2012/01/twitter_vintage_momapropaganda1.jpg"><img style="background-image:none;border-bottom:0;border-left:0;padding-left:0;padding-right:0;display:inline;border-top:0;border-right:0;padding-top:0;" title="Twitter_vintage_MomaPropaganda" border="0" alt="Twitter_vintage_MomaPropaganda" src="http://danieldonda.files.wordpress.com/2012/01/twitter_vintage_momapropaganda_thumb1.jpg?w=504&#038;h=674" width="504" height="674" /></a></p>
<p>Um sítio com grande sortimento de pessoas. Esse é o Twitter, um célebre mecanismo de manutenção de contactos visuais. Seguindo e sendo seguido, vossa mercê gozará da possibilidade de intercambiar uma formidável quantidade de informações, filmes, photographias, etc. O Twitter é, de facto, uma ferramenta magnânima.</p>
<p>&#160;</p>
<p><strong>Skype</strong></p>
<p><a href="http://danieldonda.files.wordpress.com/2012/01/skype_vintage_momapropaganda1.jpg"><img style="background-image:none;border-bottom:0;border-left:0;padding-left:0;padding-right:0;display:inline;border-top:0;border-right:0;padding-top:0;" title="Skype_vintage_MomaPropaganda" border="0" alt="Skype_vintage_MomaPropaganda" src="http://danieldonda.files.wordpress.com/2012/01/skype_vintage_momapropaganda_thumb1.jpg?w=504&#038;h=674" width="504" height="674" /></a></p>
<p>Skype é uma ferramenta de finíssima qualidade para você e vossos parentes se comunicarem pela internêt. É a mais saudável, econômica e segura forma de manter, à distância, vigorosos laços familiares. Skype é mais que telephone. É um verdadeiro milagre audio-visual que colocar-lo-á em contacto com um novo e revolucionário mundo.</p>
<p>&#160;</p>
<p><strong>YouTube</strong>    </p>
<p><a href="http://danieldonda.files.wordpress.com/2012/01/youtube_vintage_momapropaganda1.jpg"><img style="background-image:none;border-bottom:0;border-left:0;padding-left:0;padding-right:0;display:inline;border-top:0;border-right:0;padding-top:0;" title="Youtube_vintage_MomaPropaganda" border="0" alt="Youtube_vintage_MomaPropaganda" src="http://danieldonda.files.wordpress.com/2012/01/youtube_vintage_momapropaganda_thumb1.jpg?w=504&#038;h=674" width="504" height="674" /></a></p>
<p>Poste e assista vídeos graciosos e cativantes, 24 horas por dia. Vídeos de desportos, notícias, reclames e muito mais. Uma encantadora ferramenta de entretenimento para toda a família</p>
<p>&#160;</p>
<p>&#160;</p>
<p>via (<a href="http://kibeloco.com.br">http://kibeloco.com.br</a>)</p>
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		<title>Criptografia com &#193;lgebra Linear (matrizes)&#8211;Parte 2</title>
		<link>http://danieldonda.wordpress.com/2011/04/08/criptografia-com-lgebra-linear-matrizesparte-2/</link>
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		<pubDate>Fri, 08 Apr 2011 20:04:24 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Algebra]]></category>
		<category><![CDATA[Computação]]></category>
		<category><![CDATA[Criptografia]]></category>
		<category><![CDATA[Matemática]]></category>
		<category><![CDATA[Programação]]></category>

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		<description><![CDATA[Continuação do artigo Criptografia com álgebra linear parte 1 
<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=danieldonda.wordpress.com&amp;blog=4581703&amp;post=533&amp;subd=danieldonda&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Continuação do artigo <a href="http://danieldonda.wordpress.com/2011/04/08/criptografia-com-lgebra-linear-matrizesparte-1/">Criptografia com álgebra linear parte 1 <br />
</a>O processo de <strong>descriptografia</strong> é relativamente simples. Basta multiplicar a matriz B pela inversa da matriz A (que é nossa chave).<br />
<strong>Mas como achamos a inversa da matriz A ?</strong></p>
<p><span id="more-533"></span></p>
<p>A= <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00215_thumb5.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[15]_thumb[5]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00215_thumb5_thumb.png?w=98&#038;h=49" border="0" alt="clip_image002[15]_thumb[5]" width="98" height="49" /></a></p>
<h2>Matriz inversa (parte final)</h2>
<p>Como vimos no artigo anterior a matriz A admite uma inversa, pois sua determinante é 1<br />
Det(A)=1<br />
Aqui chamaremos a matrz A de M.<br />
A sua inversa é representada por M-1. Vamos usar o seguinte teorema:</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0021.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002" src="http://danieldonda.files.wordpress.com/2011/04/clip_image002_thumb1.png?w=121&#038;h=39" border="0" alt="clip_image002" width="121" height="39" /></a></p>
<p>Onde <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0024.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[4]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0024_thumb.png?w=13&#038;h=22" border="0" alt="clip_image002[4]" width="13" height="22" /></a> é a matriz adjunta.</p>
<p>Vamos entender passo a passo:</p>
<p><strong>1º Encontrar o determinante de M<br />
</strong>Já sabemos que é 1</p>
<p><strong>2º A matriz M’ chamada de matriz dos <span style="color:#ff0000;">co-fatores</span>, substituindo cada elemento de M pelo respectivo cofator.</strong></p>
<p><strong>3º A matriz </strong><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0026.png"><strong><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[6]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0026_thumb.png?w=13&#038;h=22" border="0" alt="clip_image002[6]" width="13" height="22" /></strong></a><strong>chamada de matriz adjunta que é a <span style="color:#ff0000;">transposta</span> de M’ </strong><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0028.png"><strong><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[8]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0028_thumb.png?w=69&#038;h=22" border="0" alt="clip_image002[8]" width="69" height="22" /></strong></a></p>
<p><strong>4º Encontrar a inversa </strong><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00210.png"><strong><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[10]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00210_thumb.png?w=27&#038;h=20" border="0" alt="clip_image002[10]" width="27" height="20" /></strong></a><strong>, multiplicando </strong><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00261.png"><strong><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[6]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0026_thumb1.png?w=13&#038;h=22" border="0" alt="clip_image002[6]" width="13" height="22" /></strong></a><strong> por </strong><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002131.png"><strong><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[13]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00213_thumb1.png?w=45&#038;h=39" border="0" alt="clip_image002[13]" width="45" height="39" /></strong></a></p>
<hr />
<h2>Menor Complementar e Co-Fator</h2>
<p> </p>
<p><strong>2º A matriz M’ chamada de matriz dos <span style="color:#ff0000;">co-fatores</span>, substituindo cada elemento de M pelo respectivo cofator.</strong><br />
Chamamos de cofator relativo ao elemento aij de uma matriz quadrada de ordem n o numero A<sub>ij</sub> tal que:<br />
<a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002152.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[15]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00215_thumb2.png?w=137&#038;h=23" border="0" alt="clip_image002[15]" width="137" height="23" /></a></p>
<p>Onde o <strong>MC</strong> é o Menor Complementar.</p>
<p>O menor complementar de um elementro de uma matriz é obtido suprimindo as linhas e colunas em que ele faz parte e encontrando o determinante dos elementos que sobraram.</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00215_thumb51.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[15]_thumb[5]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00215_thumb5_thumb1.png?w=98&#038;h=49" border="0" alt="clip_image002[15]_thumb[5]" width="98" height="49" /></a>.</p>
<p>Veja na imagem:<br />
<a href="http://danieldonda.files.wordpress.com/2011/04/image2.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="image" src="http://danieldonda.files.wordpress.com/2011/04/image_thumb2.png?w=357&#038;h=187" border="0" alt="image" width="357" height="187" /></a></p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0023.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[3]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0023_thumb.png?w=496&#038;h=96" border="0" alt="clip_image002[3]" width="496" height="96" /></a> </p>
<p>Fazendo os calculos temos a matriz = M’  =<a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00251.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[5]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0025_thumb1.png?w=76&#038;h=49" border="0" alt="clip_image002[5]" width="76" height="49" /></a></p>
<h2>Matriz Adjunta (transposta)</h2>
<p> </p>
<p>Falta agora transpor a matrix M’:<br />
<strong>A matriz </strong><a rel="WLPP"><strong></strong></a><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00262.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image0026" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0026_thumb2.png?w=13&#038;h=22" border="0" alt="clip_image0026" width="13" height="22" /></a><strong>chamada de matriz adjunta que é a <span style="color:#ff0000;">transposta</span> de M’ </strong><a rel="WLPP"><strong></strong></a><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00281.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image0028" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0028_thumb1.png?w=69&#038;h=22" border="0" alt="clip_image0028" width="69" height="22" /></a><br />
A matriz transposta é a matriz obtida trocando-se ordenadamente suas linhas por colunas.</p>
<p>M’ = <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00252.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[5]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0025_thumb2.png?w=76&#038;h=49" border="0" alt="clip_image002[5]" width="76" height="49" /></a> </p>
<p>(M’)<sup>T</sup> = <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002111.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[11]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00211_thumb1.png?w=98&#038;h=49" border="0" alt="clip_image002[11]" width="98" height="49" /></a> </p>
<p>Portanto: <a rel="WLPP"><strong></strong></a><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00263.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image0026" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0026_thumb3.png?w=13&#038;h=22" border="0" alt="clip_image0026" width="13" height="22" /></a> = <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002112.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[11]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00211_thumb2.png?w=98&#038;h=49" border="0" alt="clip_image002[11]" width="98" height="49" /></a></p>
<p><strong>Encontrar a inversa </strong><a rel="WLPP"><strong></strong></a><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002101.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image00210" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00210_thumb1.png?w=27&#038;h=20" border="0" alt="clip_image00210" width="27" height="20" /></a><strong>, multiplicando </strong><a rel="WLPP"><strong></strong></a><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00264.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image0026" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0026_thumb4.png?w=13&#038;h=22" border="0" alt="clip_image0026" width="13" height="22" /></a><strong> por </strong><a rel="WLPP"><strong></strong></a><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002132.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image00213" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00213_thumb2.png?w=45&#038;h=39" border="0" alt="clip_image00213" width="45" height="39" /></a></p>
<p>Já que a determinante de M já descoberta no artigo anterior é 1<br />
Então 1/1 = 1* <a rel="WLPP"><strong></strong></a><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00265.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image0026" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0026_thumb5.png?w=13&#038;h=22" border="0" alt="clip_image0026" width="13" height="22" /></a> não altera a nossa matriz.</p>
<p>Portanto <strong>M<sup>-1</sup> =</strong><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002113.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[11]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00211_thumb3.png?w=98&#038;h=49" border="0" alt="clip_image002[11]" width="98" height="49" /></a></p>
<p>Assim temos a chave de descritografia.<br />
<img class="wlEmoticon wlEmoticon-smile" style="border-style:none;" src="http://danieldonda.files.wordpress.com/2011/04/wlemoticon-smile.png?w=510" alt="Alegre" /><strong> Como descriptografar ?</strong><br />
Multiplique a matriz inversa pela matriz da mensagem cifrada.</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002114.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[11]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00211_thumb4.png?w=98&#038;h=49" border="0" alt="clip_image002[11]" width="98" height="49" /></a> * <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00237_thumb1.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image00237_thumb" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00237_thumb_thumb.png?w=189&#038;h=49" border="0" alt="clip_image00237_thumb" width="189" height="49" /></a> = <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00212.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[1]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0021_thumb.png?w=121&#038;h=49" border="0" alt="clip_image002[1]" width="121" height="49" /></a><br />
Usando a tabela de caracteres você verá que é <strong>muito loco</strong>.</p>
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		<title>Criptografia com &#193;lgebra Linear (matrizes)&#8211;Parte 1</title>
		<link>http://danieldonda.wordpress.com/2011/04/08/criptografia-com-lgebra-linear-matrizesparte-1/</link>
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		<pubDate>Fri, 08 Apr 2011 20:00:01 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Algebra]]></category>
		<category><![CDATA[Computação]]></category>
		<category><![CDATA[Criptografia]]></category>
		<category><![CDATA[Matemática]]></category>
		<category><![CDATA[Programação]]></category>

		<guid isPermaLink="false">https://danieldonda.wordpress.com/2011/04/08/criptografia-com-lgebra-linear-matrizesparte-1/</guid>
		<description><![CDATA[Matrizes são uteis em diversos campos como em economia, engenharia, física, tecnologia (grafos) e também pode ser aplicada em criptografia.
Neste artigo eu ensino a criptografar usando os recursos da Algebra linear. Lembra ?
Para entender o artigo é bom lembrar ou aprender o básico de matrizes, portanto além de ver um processo bem legal de criptografia, você vai entender matrizes, matriz inversa, determinante, regra de "Sarrus", Multiplicação de matriz e aritmética modular, e na sugunda parte desse artigo entenderá matriz adjunta (transposta) menor complementar e co-fator e é claro um bom método de criptografia simétrica.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=danieldonda.wordpress.com&amp;blog=4581703&amp;post=475&amp;subd=danieldonda&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Uma das perguntas quando a gente aprende matriz é:<br />
- Para que eu preciso disso?</p>
<p>Matrizes são uteis em diversos campos como em economia, engenharia, física, tecnologia (grafos) e também pode ser aplicada em criptografia.<br />
A área da criptografia é bem abrangente e usa diversos métodos para transformar dados normal (texto puro) e texto cifrado.<br />
Podemos empregar álgebra linear, mais especificamente matriz a fim de criarmos um sistema de criptografia. O método envolve duas matizes, uma para criptografar e uma descriptografar.</p>
<p>Para entender o artigo é bom lembrar ou aprender o básico de matrizes, portanto além de ver um processo bem legal de criptografia, você vai entender matrizes, matriz inversa, determinante, regra de &#8220;Sarrus&#8221;, Multiplicação de matriz e aritmética modular, e na sugunda parte desse artigo entenderá matriz adjunta (transposta) menor complementar e co-fator e é claro um bom método de criptografia simétrica.<br />
<span id="more-475"></span></p>
<h2>Matriz</h2>
<p>Matriz = Uma tabela de números dispostos em linhas e colunas colocados entre parênteses ou colchetes:</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002" src="http://danieldonda.files.wordpress.com/2011/04/clip_image002_thumb.png?w=53&#038;h=32" border="0" alt="clip_image002" width="53" height="32" /></a><br />
Tabelas com m linhas e n colunas são denominadas matrizes  <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0027.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[7]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0027_thumb.png?w=36&#038;h=20" border="0" alt="clip_image002[7]" width="36" height="20" /></a> sendo <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0025.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[5]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0025_thumb.png?w=61&#038;h=20" border="0" alt="clip_image002[5]" width="61" height="20" /></a>.</p>
<p>Uma matriz é representada por letras maiúsculas e seus elementos por letras minúsculas, acompanhadas de dois índices que indicam a linha e a coluna.</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00213.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[13]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00213_thumb.png?w=9&#038;h=20" border="0" alt="clip_image002[13]" width="9" height="20" /></a> = <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0044.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image004[4]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0044_thumb.png?w=104&#038;h=49" border="0" alt="clip_image004[4]" width="104" height="49" /></a> </p>
<p>Abreviando a matriz A podemos escrever<br />
<a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00211.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[11]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00211_thumb.png?w=84&#038;h=25" border="0" alt="clip_image002[11]" width="84" height="25" /></a> <br />
O i representa a linha e o j representa a coluna que o elemento ocupa.</p>
<p>Fácil veja a matriz 3&#215;3:</p>
<p>A= <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00215.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[15]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00215_thumb.png?w=98&#038;h=49" border="0" alt="clip_image002[15]" width="98" height="49" /></a></p>
<p>Onde :<br />
<a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00217.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[17]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00217_thumb.png?w=21&#038;h=20" border="0" alt="clip_image002[17]" width="21" height="20" /></a>=-3  <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image0046.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image004[6]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image0046_thumb.png?w=21&#038;h=20" border="0" alt="clip_image004[6]" width="21" height="20" /></a>=-3  <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image006.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image006" src="http://danieldonda.files.wordpress.com/2011/04/clip_image006_thumb.png?w=21&#038;h=20" border="0" alt="clip_image006" width="21" height="20" /></a>=-4<br />
<a href="http://danieldonda.files.wordpress.com/2011/04/clip_image008.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image008" src="http://danieldonda.files.wordpress.com/2011/04/clip_image008_thumb.png?w=21&#038;h=20" border="0" alt="clip_image008" width="21" height="20" /></a>=0   <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image010.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image010" src="http://danieldonda.files.wordpress.com/2011/04/clip_image010_thumb.png?w=21&#038;h=20" border="0" alt="clip_image010" width="21" height="20" /></a>=1   <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image012.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image012" src="http://danieldonda.files.wordpress.com/2011/04/clip_image012_thumb.png?w=21&#038;h=20" border="0" alt="clip_image012" width="21" height="20" /></a>=1<br />
<a href="http://danieldonda.files.wordpress.com/2011/04/clip_image014.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image014" src="http://danieldonda.files.wordpress.com/2011/04/clip_image014_thumb.png?w=21&#038;h=20" border="0" alt="clip_image014" width="21" height="20" /></a>=4   <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image016.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image016" src="http://danieldonda.files.wordpress.com/2011/04/clip_image016_thumb.png?w=21&#038;h=20" border="0" alt="clip_image016" width="21" height="20" /></a>=3   <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image018.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image018" src="http://danieldonda.files.wordpress.com/2011/04/clip_image018_thumb.png?w=21&#038;h=20" border="0" alt="clip_image018" width="21" height="20" /></a>=4</p>
<p>Essa matriz poderá ser utilizada em nossa criptografia. (Se quiser fazer diferente do exemplo escolha números aleatórios e crie uma matriz 3&#215;3).<br />
Desde que ela possua uma inversa.<br />
A inversa de <strong>A</strong> somente irá existir se e somente se a determinante de<strong> A</strong> for diferente de zero.</p>
<p>Se esta matriz possuir a inversa ela será a nossa <strong>Chave de Criptografia</strong>.</p>
<h2>Matriz Inversa parte 1</h2>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00223.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[23]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00223_thumb.png?w=125&#038;h=20" border="0" alt="clip_image002[23]" width="125" height="20" /></a><br />
Ela é inversível se existir uma matriz <strong>B</strong> tal que:</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00221.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[21]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00221_thumb.png?w=117&#038;h=20" border="0" alt="clip_image002[21]" width="117" height="20" /></a> <br />
Neste caso <strong>B</strong> é dita como inversa de A e pode ser escrita como <strong>A<sup>-1</sup></strong>.</p>
<h2>Determinante</h2>
<p>Determinante é um número real associado a uma matriz usado no calculo da matriz inversa, resolução de alguns sistemas lineares e em calculo de área de triângulos quando se conhece as coordenadas do vértice.<br />
Vamos verificar se a matriz A possui uma inversa e para isso temos que descobrir o determinante.</p>
<p>Por se tratar de uma matriz 3&#215;3 a determinante é de 3ª ordem, assim temos que usar um dispositivo conhecido como regra de Sarrus (“lê-se Sarrí”).<br />
<strong>1º passo –</strong> Repetir as duas primeiras colunas al lado da terceira</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00225.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[25]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00225_thumb.png?w=163&#038;h=49" border="0" alt="clip_image002[25]" width="163" height="49" /></a></p>
<p><strong>2º passo &#8211; </strong>Multiplicar os elemento da diagonal principal de A conservando os sinais.</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/image.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="image" src="http://danieldonda.files.wordpress.com/2011/04/image_thumb.png?w=319&#038;h=129" border="0" alt="image" width="319" height="129" /></a></p>
<p>(-3*1*4)+( -3*1*4)+( -4*0*3)=-24<br />
<strong>3º passo &#8211; </strong>Multiplicar os elementos da diagonal secundaria trocando o sinal</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/image1.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="image" src="http://danieldonda.files.wordpress.com/2011/04/image_thumb1.png?w=294&#038;h=117" border="0" alt="image" width="294" height="117" /></a></p>
<p>(4*1*-4)+(3*1*-3)+(4*0*-3) = –25 (inverte o sinal)</p>
<p><strong>4º passo &#8211; </strong>Somar os produtos obtidos:<br />
25+(-24)=1</p>
<p>1 é o determinante da matriz A<br />
det(A)=1 <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00228.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;margin:0;" title="clip_image002[28]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00228_thumb.png?w=8&#038;h=20" border="0" alt="clip_image002[28]" width="8" height="20" /></a> Existe a inversa de A</p>
<h2>Criptografando</h2>
<p><strong></strong><br />
Continuando o processo de criptografia o próximo passo é pensar em nosso alfabeto e para fins de simplificação, vamos transformar as letras do alfabeto em números sequencias, poderíamos fazer a utilização da tabela ASCII.</p>
<p><img src="http://danieldonda.files.wordpress.com/2011/04/tabela.jpg?w=300" border="0" alt="[tabela.JPG]" /><br />
Que tal incluir o espaço e adicionar o valor 26;<br />
Vamos imaginar agora uma mensagem a ser criptografada.<br />
<strong>”Muito loco”<br />
</strong></p>
<table border="1" cellspacing="1" cellpadding="1" width="309">
<tbody>
<tr>
<td width="59" valign="top"><strong>Frase</strong></td>
<td width="127" valign="top"><strong>Valor na Tabela</strong></td>
<td width="117" valign="top"><strong>Valor na Matriz</strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>M</strong></td>
<td width="127" valign="top"><strong>12</strong></td>
<td width="117" valign="top"><strong>a<sub>11</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>U</strong></td>
<td width="127" valign="top"><strong>20</strong></td>
<td width="117" valign="top"><strong>a<sub>21</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>I</strong></td>
<td width="127" valign="top"><strong>8</strong></td>
<td width="117" valign="top"><strong>a<sub>31</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>T</strong></td>
<td width="127" valign="top"><strong>19</strong></td>
<td width="117" valign="top"><strong>a<sub>12</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>O</strong></td>
<td width="127" valign="top"><strong>14</strong></td>
<td width="117" valign="top"><strong>a<sub>22</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"> </td>
<td width="127" valign="top"><strong>26</strong></td>
<td width="117" valign="top"><strong>a<sub>23</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>L</strong></td>
<td width="127" valign="top"><strong>11</strong></td>
<td width="117" valign="top"><strong>a<sub>13</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>O</strong></td>
<td width="127" valign="top"><strong>14</strong></td>
<td width="117" valign="top"><strong>a<sub>23</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>C</strong></td>
<td width="127" valign="top"><strong>3</strong></td>
<td width="117" valign="top"><strong>a<sub>33</sub></strong></td>
</tr>
<tr>
<td width="59" valign="top"><strong>O</strong></td>
<td width="127" valign="top"><strong>14</strong></td>
<td width="117" valign="top"><strong>a</strong><sub>14</sub></td>
</tr>
<tr>
<td width="59" valign="top"> </td>
<td width="127" valign="top"><strong>26</strong></td>
<td width="117" valign="top"><strong>a</strong><sub>24</sub></td>
</tr>
<tr>
<td width="59" valign="top"> </td>
<td width="127" valign="top"><strong>26</strong></td>
<td width="117" valign="top"><strong>a</strong><sub>34</sub></td>
</tr>
</tbody>
</table>
<p>Resultando na seguinte matriz.<br />
B= <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00219.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[19]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00219_thumb.png?w=122&#038;h=49" border="0" alt="clip_image002[19]" width="122" height="49" /></a></p>
<p>Com a matriz A que é a nossa chave de criptografia e a matriz B que é nosso texto puro, basta fazer a multiplicação das matrizes para termos um mensagem criptografada.:</p>
<p><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002151.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[15]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00215_thumb1.png?w=98&#038;h=49" border="0" alt="clip_image002[15]" width="98" height="49" /></a> <strong>*</strong><a href="http://danieldonda.files.wordpress.com/2011/04/clip_image002191.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[19]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00219_thumb1.png?w=122&#038;h=49" border="0" alt="clip_image002[19]" width="122" height="49" /></a></p>
<h2>Multiplicação de Matrizes</h2>
<p>Duas matrizes<strong> A</strong>= (a<sub>ij</sub>)<sub>mxn </sub>e <strong>B</strong>(b<sub>ij</sub>)<sub>nxp</sub> o produto de AB é <strong>C</strong>=(c<sub>ij</sub>)<sub>mxp</sub> tal que:</p>
<dl>
<dd><img src="http://upload.wikimedia.org/math/0/3/a/03a587627dac6e73fd867a100c6ca9ee.png" alt=" (AB)_{ij} = \sum_{r=1}^n a_{ir}b_{rj} = a_{i1}b_{1j} + a_{i2}b_{2j} + \cdots + a_{in}b_{nj}. " /></dd>
</dl>
<p>para cada par <em>i</em> e <em>j</em> com 1 ≤ <em>i</em> ≤ <em>m</em> e 1 ≤ <em>j</em> ≤ <em>p</em>.</p>
<p>Somente se A<sub>nxm</sub>*B<sub>mxp</sub>=Nxp Ou seja, desde que o numero de colunas de A sejam iguais ao numero de linhas de B</p>
<p><img class="wlEmoticon wlEmoticon-surprisedsmile" style="border-style:none;" src="http://danieldonda.files.wordpress.com/2011/04/wlemoticon-surprisedsmile.png?w=510" alt="Smiley surpreso" /> Não se assuste é fácil:<br />
É a soma dos produtos das linhas de A por todas as colunas de B.</p>
<blockquote><p>(<span style="color:#0000ff;">-3</span>*12)+(<span style="color:#0000ff;">-3</span>*20)+(<span style="color:#0000ff;">-4</span>*8)    (<span style="color:#0000ff;">-3</span>*19)+(<span style="color:#0000ff;">-3</span>*14)+(<span style="color:#0000ff;">-4</span>*26)    (<span style="color:#0000ff;">-3</span>*11)+(<span style="color:#0000ff;">-3</span>*14)+(<span style="color:#0000ff;">-4</span>*3)     (<span style="color:#0000ff;">-3</span>*14)+(<span style="color:#0000ff;">-3</span>*26)+(<span style="color:#0000ff;">-4</span>*26)<br />
(0*12)+(1*20)+(1*8)        (0*19)+(1*14)+(1*26)        (0*11)+(1*14)+(1*3)        (0*14)+(1*26)+(1*26)<br />
(4*12)+(3*20)+(4*8)        (4*19)+(3*14)+(4*26)        (4*11)+(3*14)+(4-3)        (4*14)+(3*26)+(4*26)</p></blockquote>
<p>C= <a href="http://danieldonda.files.wordpress.com/2011/04/clip_image00237.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border-width:0;" title="clip_image002[37]" src="http://danieldonda.files.wordpress.com/2011/04/clip_image00237_thumb.png?w=189&#038;h=49" border="0" alt="clip_image002[37]" width="189" height="49" /></a></p>
<p>Essa é a mensagem criptografada.</p>
<h2>Aritmética Modular</h2>
<p> </p>
<p>Se você quiser visualizar os caracters gerados você deve usar aritmética modular MOD(26) pois nossa tabela só vai até 26 – Calculo modular não é dificil.<br />
<strong>-128:26 = 5 sobra 2 portanto 128 MOD(26) = 2<br />
</strong>203:26 dá 7 e sobra 21 portanto MOD(26)=21<br />
87 MOD(26)=9<br />
224 MOD(26)=16<br />
28 MOD(26)=2<br />
40 MOD(26) = 14<br />
17 não precisa<br />
52 MOD(26) =0 (não tem resto)<br />
140 MOD(26)=10<br />
222 MOD(26)=14<br />
98 MOD(26)=20<br />
238 MOD(26)=4</p>
<p>Temos então o valor 2, 21, 9, 16 ,2,14,17,0,10,14,20 e 4</p>
<p><img src="http://danieldonda.files.wordpress.com/2011/04/tabela.jpg?w=300" border="0" alt="[tabela.JPG]" /></p>
<p>Formando a <strong>frase criptografada</strong>:</p>
<table border="1" cellspacing="1" cellpadding="1" width="229">
<tbody>
<tr>
<td width="74" valign="top">Valor</td>
<td width="150" valign="top">Frase Criptografada</td>
</tr>
<tr>
<td width="74" valign="top">2</td>
<td width="150" valign="top">C</td>
</tr>
<tr>
<td width="74" valign="top">21</td>
<td width="150" valign="top">V</td>
</tr>
<tr>
<td width="74" valign="top">9</td>
<td width="150" valign="top">J</td>
</tr>
<tr>
<td width="74" valign="top">16</td>
<td width="150" valign="top">Q</td>
</tr>
<tr>
<td width="74" valign="top">2</td>
<td width="150" valign="top">C</td>
</tr>
<tr>
<td width="74" valign="top">14</td>
<td width="150" valign="top">O</td>
</tr>
<tr>
<td width="74" valign="top">17</td>
<td width="150" valign="top">R</td>
</tr>
<tr>
<td width="74" valign="top">0</td>
<td width="150" valign="top">A</td>
</tr>
<tr>
<td width="74" valign="top">10</td>
<td width="150" valign="top">K</td>
</tr>
<tr>
<td width="74" valign="top">14</td>
<td width="150" valign="top">O</td>
</tr>
<tr>
<td width="74" valign="top">20</td>
<td width="150" valign="top">U</td>
</tr>
<tr>
<td width="74" valign="top">4</td>
<td width="150" valign="top">E</td>
</tr>
</tbody>
</table>
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		<media:content url="http://danieldonda.files.wordpress.com/2011/04/tabela.jpg?w=300" medium="image">
			<media:title type="html">[tabela.JPG]</media:title>
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			<media:title type="html"> (AB)_{ij} = \sum_{r=1}^n a_{ir}b_{rj} = a_{i1}b_{1j} + a_{i2}b_{2j} + \cdots + a_{in}b_{nj}. </media:title>
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	</item>
		<item>
		<title>Feriados no calend&#225;rio do Outlook</title>
		<link>http://danieldonda.wordpress.com/2011/02/15/feriados-no-calendrio-do-outlook/</link>
		<comments>http://danieldonda.wordpress.com/2011/02/15/feriados-no-calendrio-do-outlook/#comments</comments>
		<pubDate>Tue, 15 Feb 2011 13:39:37 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Grupo IT Pro Mcsesolution]]></category>

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		<description><![CDATA[Eu precisava saber as datas do carnaval esse ano e pensei. Podia existir alguém que criou um calendário para o outlook com as datas comemorativas né ? Mas já tem. Olha como é fácil. Eu tô usando o Outlook 2010. Abra o outlook e clique em Arquivo –&#62; Opções. Clique em Calendários e em seguida [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=danieldonda.wordpress.com&amp;blog=4581703&amp;post=415&amp;subd=danieldonda&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Eu precisava saber as datas do carnaval esse ano e pensei. Podia existir alguém que criou um calendário para o outlook com as datas comemorativas né ? Mas já tem. Olha como é fácil. Eu tô usando o Outlook 2010.</p>
<p>Abra o outlook e clique em Arquivo –&gt; Opções.<br />
Clique em Calendários e em seguida em Adicionar Feriados… <br />
<a href="http://danieldonda.files.wordpress.com/2011/02/image.png"><img style="background-image:none;padding-left:0;padding-right:0;display:inline;padding-top:0;border:0;margin:0;" title="image" src="http://danieldonda.files.wordpress.com/2011/02/image_thumb.png?w=244&#038;h=177" border="0" alt="image" width="244" height="177" /></a></p>
<p>Selecione o Brasil e pronto. Ele faz o download automático.<br />
Só que são somente os feriados nacionais.</p>
<p>Até mais,<br />
Daniel Donda<br />
<a href="http://www.mcsesolution.com">www.mcsesolution.com</a></p>
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		<slash:comments>1</slash:comments>
	
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			<media:title type="html">image</media:title>
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		<item>
		<title>Linux vs Windows</title>
		<link>http://danieldonda.wordpress.com/2011/01/13/linux-vs-windows/</link>
		<comments>http://danieldonda.wordpress.com/2011/01/13/linux-vs-windows/#comments</comments>
		<pubDate>Thu, 13 Jan 2011 12:37:58 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Funny]]></category>

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			<content:encoded><![CDATA[<p align="center"><a href="http://danieldonda.files.wordpress.com/2011/01/linux_windows.jpg"><img style="background-image:none;border-bottom:0;border-left:0;padding-left:0;padding-right:0;display:inline;border-top:0;border-right:0;padding-top:0;" title="linux_windows" border="0" alt="linux_windows" src="http://danieldonda.files.wordpress.com/2011/01/linux_windows_thumb.jpg?w=400&#038;h=1262" width="400" height="1262" /></a></p>
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			<media:title type="html">linux_windows</media:title>
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		<item>
		<title>Via Windows Live Writer</title>
		<link>http://danieldonda.wordpress.com/2010/09/28/via-windows-live-writer/</link>
		<comments>http://danieldonda.wordpress.com/2010/09/28/via-windows-live-writer/#comments</comments>
		<pubDate>Tue, 28 Sep 2010 17:34:00 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">https://danieldonda.wordpress.com/2010/09/28/via-windows-live-writer/</guid>
		<description><![CDATA[Em simples post para testar a funcionalidade. Veja o artigo em www.mcsesolution.com Com imagem e tudo mais…<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=danieldonda.wordpress.com&amp;blog=4581703&amp;post=204&amp;subd=danieldonda&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Em simples post para testar a funcionalidade.</p>
<p>Veja o artigo em <a href="http://www.mcsesolution.com">www.mcsesolution.com</a>    </p>
<p><a href="http://danieldonda.files.wordpress.com/2010/09/coyotemad.jpg"><img style="background-image:none;border-bottom:0;border-left:0;padding-left:0;padding-right:0;display:inline;border-top:0;border-right:0;padding-top:0;" title="CoyoteMad" border="0" alt="CoyoteMad" src="http://danieldonda.files.wordpress.com/2010/09/coyotemad_thumb.jpg?w=137&#038;h=240" width="137" height="240" /></a>    <br />Com imagem e tudo mais…</p>
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		<title>Bill Gates e Steve Jobs (Funny)</title>
		<link>http://danieldonda.wordpress.com/2010/09/07/bill-gates-e-steve-jobs-funny/</link>
		<comments>http://danieldonda.wordpress.com/2010/09/07/bill-gates-e-steve-jobs-funny/#comments</comments>
		<pubDate>Tue, 07 Sep 2010 11:00:28 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Blog]]></category>
		<category><![CDATA[Funny]]></category>

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			<content:encoded><![CDATA[<div id="msgcns!559872F6BC95048C!924" class="bvMsg">
<p><a href="http://danieldonda.files.wordpress.com/2010/09/6ab072f57ac95a400a3e8708f4e4b56b.jpg" rel="WLPP"><img border="0" src="http://danieldonda.files.wordpress.com/2010/09/6ab072f57ac95a400a3e8708f4e4b56b.jpg?w=158" /></a></p>
</p></div>
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		<title>Níveis Técnicos do TechNet</title>
		<link>http://danieldonda.wordpress.com/2010/08/14/niveis-tecnicos-do-technet/</link>
		<comments>http://danieldonda.wordpress.com/2010/08/14/niveis-tecnicos-do-technet/#comments</comments>
		<pubDate>Sat, 14 Aug 2010 14:18:18 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Grupo IT Pro Mcsesolution]]></category>

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		<description><![CDATA[Sempre recebo perguntas sobre os níveis técnicos das palestras e eventos que ocorrem no TechNet. Achei que seria interessante compartilhar essa tabela que define cada um. Nível 100: Material técnico e introdutório. Aborda assuntos desde o início e abrange os conceitos, funções, recursos e benefícios daquele tópico. Nível 200: Material intermediário. Requer o conhecimento de nível [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=danieldonda.wordpress.com&amp;blog=4581703&amp;post=222&amp;subd=danieldonda&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<div id="msgcns!559872F6BC95048C!915" class="bvMsg">
<div><strong>Sempre recebo perguntas sobre os níveis técnicos das palestras e eventos que ocorrem no TechNet. Achei que seria interessante compartilhar essa tabela que define cada um. <br /></strong></div>
<div><strong><br />Nível 100: </strong>Material técnico e introdutório. Aborda assuntos desde o início e abrange os conceitos, funções, recursos e benefícios daquele tópico.<br /> <br /><strong>Nível 200:</strong> Material intermediário. Requer o conhecimento de nível 100 e fornece detalhes específicos sobre o tópico.<br /> <br /><strong>Nível 300</strong>: Material avançado. Requer o conhecimento de nível 200, a compreensão profunda de recursos de um ambiente real e o conhecimento avançado sobre códigos. Fornece uma visão geral técnica detalhada de um subconjunto de recursos de produto/tecnologia, abordando arquitetura, desempenho, migração, implantação e desenvolvimento.<br /> <br /><strong>Nível 400</strong>: Material de especialista. Requer um nível avançado de conhecimento técnico e experiência, além de uma compreensão detalhada sobre o tópico. Fornece interação entre especialistas e cobertura de tópicos especializados.<br /><strong> <br /></strong>Onde eu achei isso:http://www.microsoft.com/brasil/technet/security/learning/fundamentals/all/default.mspx#EWDAE  </div>
</div>
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		<title>Programando em C no Windows 7</title>
		<link>http://danieldonda.wordpress.com/2010/08/08/programando-em-c-no-windows-7-2/</link>
		<comments>http://danieldonda.wordpress.com/2010/08/08/programando-em-c-no-windows-7-2/#comments</comments>
		<pubDate>Sun, 08 Aug 2010 20:05:59 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
				<category><![CDATA[Computação]]></category>
		<category><![CDATA[Grupo IT Pro Mcsesolution]]></category>
		<category><![CDATA[Programação]]></category>

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		<description><![CDATA[Estou usando o Windows 7 e para compilar meus programinhas em C foi preciso fazer algumas configurações que eu quero compartilhar com vocês. Fazendo o download do compilador C 1 &#8211; Primeiro baixe o compilador Borland C++ Compiler 5.5 2- Descompacte em um diretorio no seu computador e instale o compilador em seu diretorio padrão [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=danieldonda.wordpress.com&amp;blog=4581703&amp;post=221&amp;subd=danieldonda&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<div id="msgcns!559872F6BC95048C!914" class="bvMsg">
<div>
<p>Estou usando o Windows 7 e para compilar meus programinhas em C foi preciso fazer algumas configurações que eu quero compartilhar com vocês.<br />
<span id="more-221"></span></p>
<p><strong>Fazendo o download do compilador C </strong></p>
<p>1 &#8211; Primeiro baixe o compilador <a href="http://www.4shared.com/file/29327303/7c8b364f/Borland_C_Compiler__55.html?s=1"><span style="text-decoration:underline;"><span style="color:#0066cc;">Borland C++ Compiler 5.5</span></span></a><br />
2- Descompacte em um diretorio no seu computador e instale o compilador em seu diretorio padrão (c:\Borland).</p>
<p><strong>Configurando o Borland C++ Compiler</strong></p>
<p>3- Edite o arquivo bcc32.cfg que esta no diretorio c:\Borland\Bcc55\bin<br />
e adicione as seguintes linhas:</p>
<pre>-I"c:\Borland\Bcc55\include"
-L"c:\Borland\Bcc55\lib"</pre>
<p><strong>Configurando o Windows 7</strong><br />
4- Vá no painel de controle e clique em System.<br />
5-Clique em opções avançadas, como na figura:<br />
<a href="http://danieldonda.files.wordpress.com/2009/12/controlpanel.jpg"><img src="http://danieldonda.files.wordpress.com/2009/12/controlpanel.jpg?w=150" alt="" /></a></p>
<p>6- Clique em &#8220;Variaveis de Ambiente&#8221; como na imagem:<br />
<a href="http://danieldonda.files.wordpress.com/2009/12/variables.jpg"><img src="http://danieldonda.files.wordpress.com/2009/12/variables.jpg?w=134" alt="" /></a></p>
<p>7- Adicione o caminho da pasta bin do compilador na variavel &#8220;path&#8221; .<br />
Não esqueça de colocar ; (ponto e virgula) e adicionar apenas no final ok.</p>
<pre> ;C:\Borland\BCC55\Bin</pre>
<p>Veja a imagem:<br />
<a href="http://danieldonda.files.wordpress.com/2009/12/path.jpg"><img src="http://danieldonda.files.wordpress.com/2009/12/path.jpg?w=150" alt="" /></a></p>
<p>8- Clique em OK e feche todas as janelas.<br />
Ok, agora é só abrir uma janela do prompt de comando e utilizar o comando:<br />
bcc32 em qualquer diretorio desejado.</p>
<p><strong>Configurando o teclado para o prompt de comando.</strong><br />
Se você deseja utilizar o edit.com no prompt de comando para criar seus arquivos, é provavel que o teclado esteja desconfigurado.<br />
Você pode editar o arquivo c:\windows\system32\autoexec.nt e adicionar a seguinte linha no fim do arquivo:</p>
<pre>KB16 BR,850,C:\WINDOWS\SYSTEM32\KeyBoard.SYS</pre>
<p>Mas para fazer isso você precisa ser o administrator da maquina, portanto execute o seguinte comando na janela do prompt:</p>
<pre>runas /user:administrator "cmd"</pre>
<p>Digite a senha.<br />
Na nova janela voce pode digitar o comando:</p>
<pre>echo KB16 BR,850,C:\WINDOWS\SYSTEM32\KeyBoard.SYS &gt; %systemroot%\system32\autoexec.nt</pre>
<p>Abra novamente o prompt de comando e teste o seu teclado no edit.</p>
<p>Uma boa opção é o notepad ++ <a href="http://notepad.softonic.com.br/"><span style="text-decoration:underline;"><span style="color:#0066cc;">http://notepad.softonic.com.br/</span></span></a></p>
<p>Bons programas&#8230;</p>
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		<title>Falando sobre 7o Encontro – Programadores de C &amp; C++</title>
		<link>http://danieldonda.wordpress.com/2010/08/08/falando-sobre-7o-encontro-%e2%80%93-programadores-de-c-c/</link>
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		<pubDate>Sun, 08 Aug 2010 20:04:03 +0000</pubDate>
		<dc:creator>danieldonda</dc:creator>
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		<category><![CDATA[Grupo IT Pro Mcsesolution]]></category>

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		<description><![CDATA[  Citação 7o Encontro – Programadores de C &#38; C++ Acontecerá no próximo dia 14 de Agosto, a partir das 9:00, o 7o. encontro de programadores C &#38; C++ da Livraria Tempo Real. O evento será em São Paulo, no Century Flat – Paraíso. Quem estará lá marcando presença novamente, é o MVP de C++ [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=danieldonda.wordpress.com&amp;blog=4581703&amp;post=223&amp;subd=danieldonda&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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<p>  </p>
<p>Citação </p>
<blockquote><p><a href="http://.spaces.live.com/blog/cns!F5F4692D000CDE16!1217.entry">7o Encontro – Programadores de C &amp; C++</a></p>
<p><a href="http://danieldonda.files.wordpress.com/2010/08/12a75c99198fcad773b80bbcfe4ce935.png" rel="WLPP"><img border="0" src="http://danieldonda.files.wordpress.com/2010/08/12a75c99198fcad773b80bbcfe4ce935.png?w=300" /></a> </p>
<p>Acontecerá no próximo dia 14 de Agosto, a partir das 9:00, o <a href="http://www.temporealeventos.com.br/?area=95">7o. encontro de programadores C &amp; C++</a> da Livraria Tempo Real. O evento será em São Paulo, no Century Flat – Paraíso. </p>
<p>Quem estará lá marcando presença novamente, é o MVP de C++ Fabio Galuppo, que falará sobre <strong>Programação GPU com Visual C++ e CUDA Compiler Dirver (nvcc)</strong>. </p>
<p>Se você ainda não conhece o Fabio Galuppo, <a href="http://fabiogaluppo.spaces.live.com/">acesse seu blog</a> e entenda mais do seu trabalho. </p>
<p>Não deixe, claro, de participar do evento. Faça sua <a href="http://www.temporealeventos.com.br/?area=95&amp;tipo=1&amp;id=3023">inscrição pelo site da Livraria Tempo Real</a>. </p>
<p>Programa MVP Brasil.</p>
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