{"id":10870,"date":"2025-07-15T13:34:50","date_gmt":"2025-07-15T13:34:50","guid":{"rendered":"https:\/\/functiontranslator.com\/funcerrocompl\/"},"modified":"2021-02-25T17:18:40","modified_gmt":"2021-02-25T17:18:40","slug":"erfc","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/pt-pt\/erfc\/","title":{"rendered":"FUNCERROCOMPL"},"content":{"rendered":"<h2>Introdu\u00e7\u00e3o \u00e0 fun\u00e7\u00e3o ERFC no Excel e Google Planilhas<\/h2>\n<p>A fun\u00e7\u00e3o ERFC \u00e9 utilizada tanto no Microsoft Excel quanto no Google Planilhas para calcular a fun\u00e7\u00e3o erro complementar de um n\u00famero. Essa fun\u00e7\u00e3o \u00e9 amplamente empregada em campos como estat\u00edstica e probabilidade, especialmente na an\u00e1lise de normalidade e estudos probabil\u00edsticos.<\/p>\n<h2>Sintaxe e Exemplos de Uso<\/h2>\n<p>A sintaxe para a fun\u00e7\u00e3o ERFC \u00e9 bastante direta:<\/p>\n<pre><code>=ERFC(x)<\/code><\/pre>\n<p>Onde <code>x<\/code> representa o valor num\u00e9rico para o qual a fun\u00e7\u00e3o erro complementar \u00e9 calculada.<\/p>\n<p><strong>Exemplo 1:<\/strong> Para calcular a fun\u00e7\u00e3o erro complementar de 1,0, a f\u00f3rmula seria:<\/p>\n<pre><code>=ERFC(1.0)<\/code><\/pre>\n<p>Esse c\u00e1lculo retorna aproximadamente 0,1573, indicando o complemento da \u00e1rea sob a curva da distribui\u00e7\u00e3o normal padr\u00e3o \u00e0 direita de z = 1,0.<\/p>\n<p><strong>Exemplo 2:<\/strong> Para calcular a fun\u00e7\u00e3o erro complementar para 2,0, utilize a f\u00f3rmula:<\/p>\n<pre><code>=ERFC(2.0)<\/code><\/pre>\n<p>O resultado \u00e9 aproximadamente 0,0047, o que representa uma \u00e1rea muito pequena sob a curva normal padr\u00e3o \u00e0 direita de z = 2,0.<\/p>\n<h2>Aplica\u00e7\u00f5es Pr\u00e1ticas<\/h2>\n<p>A fun\u00e7\u00e3o ERFC tem diversas aplica\u00e7\u00f5es pr\u00e1ticas em an\u00e1lises estat\u00edsticas e de probabilidade. Vamos explorar duas dessas aplica\u00e7\u00f5es mais a fundo.<\/p>\n<h2>Aplica\u00e7\u00e3o em An\u00e1lise de Qualidade<\/h2>\n<p>Considere uma empresa que deseja avaliar a qualidade de um processo de fabrica\u00e7\u00e3o ao medir a quantidade de pe\u00e7as que ficam fora das especifica\u00e7\u00f5es de medidas em rela\u00e7\u00e3o \u00e0 m\u00e9dia. Se as pe\u00e7as seguirem uma distribui\u00e7\u00e3o normal com m\u00e9dia = 0 e desvio padr\u00e3o = 1, e a especifica\u00e7\u00e3o for que as pe\u00e7as devem estar dentro de +\/- 2 desvios padr\u00e3o, a fun\u00e7\u00e3o ERFC pode ser usada para calcular a propor\u00e7\u00e3o esperada de pe\u00e7as fora das especifica\u00e7\u00f5es.<\/p>\n<pre><code>=ERFC(2) + ERFC(-2)<\/code><\/pre>\n<p>A fun\u00e7\u00e3o ERFC para -2 \u00e9 interpretada como <code>ERFC(2)<\/code> porque a fun\u00e7\u00e3o erro complementar \u00e9 sim\u00e9trica em rela\u00e7\u00e3o ao zero. A soma destas \u00e1reas indica a propor\u00e7\u00e3o de pe\u00e7as que n\u00e3o atendem \u00e0s especifica\u00e7\u00f5es.<\/p>\n<h2>An\u00e1lise de Risco Financeiro<\/h2>\n<p>Em finan\u00e7as, o modelo de valor em risco (VaR) \u00e9 frequentemente usado para estimar o risco de perda em um portf\u00f3lio. Suponha que os retornos de um portf\u00f3lio sigam uma distribui\u00e7\u00e3o normal e \u00e9 necess\u00e1rio calcular o corte de 5% mais inferior, conhecido como VaR de 95%. Esse valor pode ser estimado utilizando a fun\u00e7\u00e3o ERFC:<\/p>\n<pre><code>=NORMINV(ERFC(0.05), m\u00e9dia_retornos, desvio_pad_retornos)<\/code><\/pre>\n<p>Onde <code>m\u00e9dia_retornos<\/code> e <code>desvio_pad_retornos<\/code> s\u00e3o, respectivamente, a m\u00e9dia e o desvio padr\u00e3o dos retornos do portf\u00f3lio. Esta formula\u00e7\u00e3o estima o ponto em que 5% dos retornos est\u00e3o abaixo desse valor.<\/p>\n<p>As aplica\u00e7\u00f5es apresentadas s\u00e3o apenas um exemplo das muitas possibilidades de uso da fun\u00e7\u00e3o ERFC em v\u00e1rias \u00e1reas que requerem an\u00e1lise estat\u00edstica e probabilidade.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Devolve a fun\u00e7\u00e3o de erro complementar<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[443],"tags":[],"class_list":["post-10870","post","type-post","status-publish","format-standard","hentry","category-engenharia"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fun\u00e7\u00e3o ERFC (FUNCERROCOMPL) no Excel \u2013 como funciona, exemplos e sintaxe<\/title>\n<meta name=\"description\" content=\"Breve descri\u00e7\u00e3o da fun\u00e7\u00e3o ERFC (FUNCERROCOMPL) do Excel. 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