{"id":2141,"date":"2026-10-14T22:52:49","date_gmt":"2026-10-14T21:52:49","guid":{"rendered":"https:\/\/wpcalc.com\/pt\/matematica\/calculadora-de-logaritmo\/"},"modified":"2026-10-14T22:52:49","modified_gmt":"2026-10-14T21:52:49","slug":"calculadora-de-logaritmo","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/pt\/matematica\/calculadora-de-logaritmo\/","title":{"rendered":"Calculadora de logaritmo"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Calcule o logaritmo em qualquer base<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"2141\" data-favorite-title=\"Logaritmo\" data-favorite-url=\"https:\/\/wpcalc.com\/pt\/matematica\/calculadora-de-logaritmo\/\" data-favorite-excerpt=\"Calcule o logaritmo de qualquer n\u00famero positivo em qualquer base \u2014 2, 10, e (logaritmo natural) ou uma base personalizada. Digite o n\u00famero, escolha a base e veja o resultado, a verifica\u00e7\u00e3o e os logaritmos comum, natural e bin\u00e1rio para compara\u00e7\u00e3o.\" aria-label=\"Adicionar aos favoritos\" data-favorite-icon=\"icon icon-algebra\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/pt\/matematica\/calculadora-de-logaritmo\/\" method=\"POST\" class=\"calculator\" id=\"calculator-2141\" data-post=\"2141\"><fieldset class=\"fieldset-input is-1\"><legend class=\"sr-only\">Campos de entrada<\/legend><div class=\"is-single field\" id=\"input-1\"><span class=\"font-semibold\">N\u00famero e base<\/span><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-2\">N\u00famero (x)<\/label><div class=\"term\">x<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"nmero_x\" id=\"field-2\" aria-describedby=\"calc-info-2\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 1000\" min=\"0\" value=\"1000\"\/><small id=\"calc-info-2\">O n\u00famero cujo logaritmo voc\u00ea quer calcular. Deve ser positivo.<\/small><\/div><div class=\"field\" id=\"input-3\"><label for=\"field-3\">Base (b)<\/label><div class=\"grid grid-cols-1\"><select id=\"field-3\" name=\"base_b\"><option value=\"2\" selected>2 \u2014 logaritmo bin\u00e1rio (log\u2082)<\/option><option value=\"10\">10 \u2014 logaritmo comum (log\u2081\u2080)<\/option><option value=\"e\">e \u2248 2,71828 \u2014 logaritmo natural (ln)<\/option><option value=\"custom\">Base personalizada\u2026<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field is-single\" id=\"input-4\" hidden><label for=\"field-4\">Base personalizada<\/label><input type=\"text\" name=\"base_personalizada\" id=\"field-4\" aria-describedby=\"calc-info-4\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 5\" min=\"0\" value=\"5\"\/><small id=\"calc-info-4\">Um n\u00famero positivo diferente de 1 (por exemplo, 3, 5 ou 2,5).<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Recalcular\" id=\"calculate-button\" data-post=\"2141\">Calcular<\/button><button type=\"reset\">Redefinir<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calcular automaticamente<\/label><small>Se ativado, o resultado \u00e9 atualizado automaticamente quando voc\u00ea altera qualquer valor.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Resultados do logaritmo<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Logaritmo log\u2091(x)<\/span><span class=\"result-term\">log\u2091(x)<\/span><\/span><span class=\"field-value\" id=\"result-1\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Verifica\u00e7\u00e3o: b elevado ao resultado<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>Logaritmo comum log\u2081\u2080(x)<\/span><span class=\"result-term\">log\u2081\u2080<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-4\"><span class=\"field-title\"><span>Logaritmo natural ln(x)<\/span><span class=\"result-term\">ln<\/span><\/span><span class=\"field-value\" id=\"result-4\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-5\"><span class=\"field-title\"><span>Logaritmo bin\u00e1rio log\u2082(x)<\/span><span class=\"result-term\">log\u2082<\/span><\/span><span class=\"field-value\" id=\"result-5\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-6\"><span class=\"field-title\"><span>Como o c\u00e1lculo foi feito<\/span><\/span><span class=\"field-value\" id=\"result-6\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copiar link para este c\u00e1lculo<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Deixar um coment\u00e1rio<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"2141\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">O que voc\u00ea achou deste resultado?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Curti <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">\u00datil <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confuso <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Decepcionado <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Impreciso <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>F\u00f3rmula do logaritmo<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">F\u00f3rmula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ \\log_b(x) = \\frac{\\ln(x)}{\\ln(b)} \\]\n\\[ \\text{onde } b^{\\,\\log_b(x)} = x \\]<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Onde:<\/strong><\/p>\n<ul>\n<li>\\(x\\) \u2014 o n\u00famero cujo logaritmo voc\u00ea quer calcular; deve ser positivo (\\(x &gt; 0\\))<\/li>\n<li>\\(b\\) \u2014 a base do logaritmo; deve ser positiva e diferente de 1 (\\(b &gt; 0,\\ b \\neq 1\\))<\/li>\n<li>\\(\\ln\\) \u2014 o logaritmo natural (logaritmo na base \\(e \\approx 2.71828\\))<\/li>\n<\/ul>\n<p>O logaritmo \\(\\log_b(x)\\) responde \u00e0 pergunta: a que expoente a base \\(b\\) precisa ser elevada para se obter \\(x\\)? A f\u00f3rmula de mudan\u00e7a de base mostrada acima permite calcular um logaritmo em qualquer base usando logaritmos naturais \u2014 e \u00e9 exatamente assim que esta calculadora funciona para todas as bases, n\u00e3o apenas 10 e \\(e\\).<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Logaritmo \u2013 Exemplo de c\u00e1lculo<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Exemplo:<\/strong> calcular \\(\\log_2(1000)\\) \u2014 ou seja, a que expoente 2 deve ser elevado para dar 1000?<\/p>\n<p>\\[ \\log_2(1000) = \\frac{\\ln(1000)}{\\ln(2)} = \\frac{6.907755}{0.693147} \\]<\/p>\n<p>\\[ \\log_2(1000) \\approx 9.965784 \\]<\/p>\n<p><strong>Resultado:<\/strong> \\(\\log_2(1000) \\approx 9.965784\\). Verifica\u00e7\u00e3o: \\(2^{9.965784} \\approx 1000\\), o que reproduz o n\u00famero original.<\/p>\n<p>\n\r\n<\/section>\n<h2>Como usar a calculadora<\/h2>\n<ol>\n<li>Digite o n\u00famero \\(x\\) no campo <strong>N\u00famero (x)<\/strong> \u2014 por exemplo, 1000. O n\u00famero deve ser positivo.<\/li>\n<li>Escolha uma base no menu <strong>Base (b)<\/strong>: <strong>2<\/strong> para o logaritmo bin\u00e1rio, <strong>10<\/strong> para o logaritmo comum, <strong>e<\/strong> para o logaritmo natural, ou <strong>Base personalizada\u2026<\/strong>.<\/li>\n<li>Se voc\u00ea escolheu uma base personalizada, digite-a no campo <strong>Base personalizada<\/strong> que aparece \u2014 qualquer n\u00famero positivo diferente de 1, como 3, 5 ou 2,5.<\/li>\n<li>Leia o resultado principal em <strong>Logaritmo log_b(x)<\/strong> e confirme-o com <strong>Verifica\u00e7\u00e3o: b elevado ao resultado<\/strong>, que deve reproduzir o n\u00famero original.<\/li>\n<li>Para compara\u00e7\u00e3o, a calculadora tamb\u00e9m mostra o logaritmo comum \\(\\log_{10}(x)\\), o logaritmo natural \\(\\ln(x)\\) e o logaritmo bin\u00e1rio \\(\\log_2(x)\\), al\u00e9m de uma explica\u00e7\u00e3o passo a passo em <strong>Como foi calculado<\/strong>.<\/li>\n<\/ol>\n<h2>O que \u00e9 um logaritmo?<\/h2>\n<p>Um logaritmo \u00e9 a opera\u00e7\u00e3o inversa da potencia\u00e7\u00e3o. Enquanto a express\u00e3o exponencial \\(b^y\\) pergunta \u201co que obtenho ao elevar \\(b\\) \u00e0 pot\u00eancia \\(y\\)?\u201d, o logaritmo \\(\\log_b(x)\\) faz a pergunta inversa: \u201ca que expoente devo elevar \\(b\\) para obter \\(x\\)?\u201d Por exemplo, \\(10^3 = 1000\\), logo \\(\\log_{10}(1000) = 3\\). As duas afirma\u00e7\u00f5es \\(b^y = x\\) e \\(y = \\log_b(x)\\) carregam exatamente a mesma informa\u00e7\u00e3o.<\/p>\n<p>Tr\u00eas bases s\u00e3o usadas com tanta frequ\u00eancia que ganharam nome e nota\u00e7\u00e3o pr\u00f3prios. O <strong>logaritmo comum<\/strong> usa a base 10 e \u00e9 escrito \\(\\log_{10}\\) ou simplesmente log; aparece na qu\u00edmica (pH), na ac\u00fastica (decib\u00e9is) e na escala Richter de terremotos. O <strong>logaritmo natural<\/strong> usa a base \\(e \\approx 2.71828\\) e \u00e9 escrito \\(\\ln\\); domina o c\u00e1lculo e os problemas de crescimento cont\u00ednuo. O <strong>logaritmo bin\u00e1rio<\/strong> usa a base 2 e \u00e9 escrito \\(\\log_2\\); \u00e9 fundamental na ci\u00eancia da computa\u00e7\u00e3o, onde mede o n\u00famero de etapas de divis\u00e3o por dois em algoritmos como a busca bin\u00e1ria e o mergesort, e tamb\u00e9m conta os bits necess\u00e1rios para representar um n\u00famero.<\/p>\n<p>A interpreta\u00e7\u00e3o do resultado depende da base. Um logaritmo igual a 3 na base 10 significa \u201ctr\u00eas fatores de dez\u201d: \\(10 \\times 10 \\times 10\\). Um resultado que n\u00e3o \u00e9 um n\u00famero inteiro simplesmente indica que o n\u00famero est\u00e1 entre duas pot\u00eancias exatas da base \u2014 por exemplo, \\(\\log_2(1000) \\approx 9.9658\\) mostra que 1000 fica um pouco abaixo de \\(2^{10} = 1024\\), o que tamb\u00e9m explica por que 1000 cabe em 10 bits.<\/p>\n<p>A f\u00f3rmula de mudan\u00e7a de base \\(\\log_b(x) = \\ln(x)\/\\ln(b)\\) \u00e9 a ponte pr\u00e1tica entre todas as bases: sabendo calcular um tipo de logaritmo, voc\u00ea consegue calcular todos. \u00c9 por isso que esta calculadora aceita qualquer base, inclusive bases incomuns como 5 ou 2,5. Se voc\u00ea trabalha com pot\u00eancias e ra\u00edzes, nossa <a href=\"https:\/\/wpcalc.com\/pt\/matematica\/raiz-enesima\/\">calculadora de raiz en\u00e9sima<\/a> cuida do outro lado da potencia\u00e7\u00e3o, e a <a href=\"https:\/\/wpcalc.com\/pt\/matematica\/media-geometrica\/\">calculadora de m\u00e9dia geom\u00e9trica<\/a> mostra uma aplica\u00e7\u00e3o cl\u00e1ssica dos logaritmos a dados multiplicativos.<\/p>\n<h2>Regras, premissas e dicas<\/h2>\n<p><strong>Restri\u00e7\u00f5es de dom\u00ednio.<\/strong> O logaritmo est\u00e1 definido apenas para n\u00fameros positivos e bases v\u00e1lidas: \\(x &gt; 0\\), \\(b &gt; 0\\) e \\(b \\neq 1\\). N\u00e3o existe logaritmo de zero nem de n\u00famero negativo, e a base 1 \u00e9 imposs\u00edvel porque 1 elevado a qualquer expoente \u00e9 sempre 1, ou seja, nunca produz nenhum outro n\u00famero. A calculadora verifica as tr\u00eas condi\u00e7\u00f5es e explica o erro se alguma for violada.<\/p>\n<p><strong>Propriedades \u00fateis<\/strong> que valem a pena memorizar ao trabalhar com logaritmos:<\/p>\n<ul>\n<li>\\(\\log_b(xy) = \\log_b(x) + \\log_b(y)\\) \u2014 o logaritmo de um produto \u00e9 a soma dos logaritmos<\/li>\n<li>\\(\\log_b(x\/y) = \\log_b(x) - \\log_b(y)\\) \u2014 o logaritmo de um quociente \u00e9 a diferen\u00e7a dos logaritmos<\/li>\n<li>\\(\\log_b(x^n) = n \\log_b(x)\\) \u2014 o expoente vem para a frente como multiplicador<\/li>\n<li>\\(\\log_b(b) = 1\\) e \\(\\log_b(1) = 0\\) para toda base v\u00e1lida<\/li>\n<\/ul>\n<p><strong>Arredondamento.<\/strong> Os resultados s\u00e3o exibidos arredondados para 6 casas decimais, e a verifica\u00e7\u00e3o \\(b^{\\log_b(x)}\\) pode diferir de \\(x\\) no \u00faltimo d\u00edgito mostrado por causa desse arredondamento \u2014 isso \u00e9 esperado, n\u00e3o \u00e9 um erro.<\/p>\n<p><strong>Respostas exatas.<\/strong> Muitos exerc\u00edcios de livros did\u00e1ticos t\u00eam respostas inteiras: \\(\\log_2(8) = 3\\), \\(\\log_{10}(100) = 2\\), \\(\\log_5(125) = 3\\). Se o seu resultado sai muito pr\u00f3ximo de um inteiro (como 2,999999), a resposta exata \u00e9 quase certamente esse inteiro.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calcule o logaritmo de qualquer n\u00famero positivo em qualquer base \u2014 2, 10, e (logaritmo natural) ou uma base personalizada. Digite o n\u00famero, escolha a base e veja o resultado, a verifica\u00e7\u00e3o e os logaritmos comum, natural e bin\u00e1rio para compara\u00e7\u00e3o.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[16],"class_list":["post-2141","post","type-post","status-publish","format-standard","hentry","category-matematica","tag-algebra"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/comments?post=2141"}],"version-history":[{"count":1,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2141\/revisions"}],"predecessor-version":[{"id":2346,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2141\/revisions\/2346"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/media?parent=2141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/categories?post=2141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/tags?post=2141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}