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+---
+title: Math.LN2
+slug: Web/JavaScript/Referencia/Objectes_globals/Math/LN2
+translation_of: Web/JavaScript/Reference/Global_Objects/Math/LN2
+---
+<div>{{JSRef("Global_Objects", "Math")}}</div>
+
+<h2 id="Summary" name="Summary">Resum</h2>
+
+<p>La propietat <strong><code>Math.LN2</code></strong> representa el logaritme natural de 2, aproximadament 0.693:</p>
+
+<p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mi>Math.LN2</mi></mstyle><mo>=</mo><mo lspace="0em" rspace="0em">ln</mo><mo stretchy="false">(</mo><mn>2</mn><mo stretchy="false">)</mo><mo>≈</mo><mn>0.693</mn></mrow><annotation encoding="TeX">\mathtt{\mi{Math.LN2}} = \ln(2) \approx 0.693</annotation></semantics></math></p>
+
+<div>{{js_property_attributes(0, 0, 0)}}</div>
+
+<h2 id="Description" name="Description">Descripció</h2>
+
+<p>Degut a que <code>LN2</code> és una propietat estàtica de <code>Math</code>, sempre s'accedeix a aquesta mitjançant el codi <code>Math.LN2</code> en comptes d'accedir a la propietat d'un objecte de <code>Math</code> ja creat (<code>Math</code> no és un constructor).</p>
+
+<h2 id="Examples" name="Examples">Exemples</h2>
+
+<h3 id="Example:_Using_Math.LN2" name="Example:_Using_Math.LN2">Exemple: Utilitzar <code>Math.LN2</code></h3>
+
+<p>La següent funció retorna el logaritme natural de 2:</p>
+
+<pre class="brush:js">function getNatLog2() {
+ return Math.LN2;
+}
+
+getNatLog2(); // 0.6931471805599453
+</pre>
+
+<h2 id="Specifications" name="Specifications">Especificacions</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Especificació</th>
+ <th scope="col">Estat</th>
+ <th scope="col">Comentaris</th>
+ </tr>
+ <tr>
+ <td>ECMAScript 1a Edició.</td>
+ <td>Standard</td>
+ <td>Definició inicial. Implementat a JavaScript 1.0.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES5.1', '#sec-15.8.1.3', 'Math.LN2')}}</td>
+ <td>{{Spec2('ES5.1')}}</td>
+ <td> </td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES6', '#sec-math.ln2', 'Math.LN2')}}</td>
+ <td>{{Spec2('ES6')}}</td>
+ <td> </td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility" name="Browser_compatibility">Compatibilitat amb navegadors</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Característica</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>Suport bàsic</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Característica</th>
+ <th>Android</th>
+ <th>Chrome for Android</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Suport bàsic</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="See_also" name="See_also">Vegeu també</h2>
+
+<ul>
+ <li>{{jsxref("Math.exp()")}}</li>
+ <li>{{jsxref("Math.log()")}}</li>
+ <li>{{jsxref("Math.log2()")}} {{experimental_inline}}</li>
+</ul>