From 074785cea106179cb3305637055ab0a009ca74f2 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:42:52 -0500
Subject: initial commit

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+---
+title: Math.expm1()
+slug: Web/JavaScript/Reference/Global_Objects/Math/expm1
+translation_of: Web/JavaScript/Reference/Global_Objects/Math/expm1
+---
+<div>{{JSRef}}</div>
+
+<p>The <strong><code>Math.expm1()</code></strong> function returns <code>e<sup>x</sup> - 1</code>, where <code>x</code> is the argument, and {{jsxref("Math.E", "e", "", 1)}} the base of the natural logarithms.</p>
+
+<div>{{EmbedInteractiveExample("pages/js/math-expm1.html")}}</div>
+
+
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="syntaxbox notranslate"><code>Math.expm1(<var>x</var>)</code></pre>
+
+<h3 id="Parameters">Parameters</h3>
+
+<dl>
+ <dt><code>x</code></dt>
+ <dd>Um número.</dd>
+</dl>
+
+<h3 id="Return_value">Return value</h3>
+
+<p>Um número representando <code>e<sup>x</sup> - 1</code>, onde <code>e</code> é {{jsxref("Math.E", "Euler's number", "", 1)}} e <code>x</code> ié o argumento.</p>
+
+<h2 id="Description">Description</h2>
+
+<p>Porque <code>expm1()</code> é um método estático de is <code>Math</code>, você sempre o usurá como <code>Math.expm1()</code>, do que como um método de um objeto <code>Math</code> que você criou (<code>Math</code> não é um contrutor).</p>
+
+<h2 id="Polyfill">Polyfill</h2>
+
+<p>This can be emulated with the help of the {{jsxref("Math.exp()")}} function:</p>
+
+<pre class="brush: js notranslate">Math.expm1 = Math.expm1 || function(x) {
+  return Math.exp(x) - 1;
+};
+</pre>
+
+<h2 id="Examples">Examples</h2>
+
+<h3 id="Using_Math.expm1">Using <code>Math.expm1()</code></h3>
+
+<pre class="brush: js notranslate">Math.expm1(-1); // -0.6321205588285577
+Math.expm1(0);  // 0
+Math.expm1(1);  // 1.718281828459045
+</pre>
+
+<h2 id="Specifications">Specifications</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specification</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-math.expm1', 'Math.expm1')}}</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>
+
+<p>{{Compat("javascript.builtins.Math.expm1")}}</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li>{{jsxref("Math.E")}}</li>
+ <li>{{jsxref("Math.exp()")}}</li>
+ <li>{{jsxref("Math.log()")}}</li>
+ <li>{{jsxref("Math.log10()")}}</li>
+ <li>{{jsxref("Math.log1p()")}}</li>
+ <li>{{jsxref("Math.log2()")}}</li>
+ <li>{{jsxref("Math.pow()")}}</li>
+</ul>
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