blob: 202558fd5968d636593869b374aaf3edbe8bc113 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
---
title: Math.LN2
slug: Web/JavaScript/Reference/Global_Objects/Math/LN2
tags:
- JavaScript
- Math
- Property
- Reference
translation_of: Web/JavaScript/Reference/Global_Objects/Math/LN2
---
<div>{{JSRef}}</div>
<p>The <strong><code>Math.LN2</code></strong> property represents the natural logarithm of 2, approximately 0.693:</p>
<p><strong><code>Math.LN2</code></strong> 속성은 2의 자연로그 값, 약 0.693의 값을 가집니다.</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>{{EmbedInteractiveExample("pages/js/math-ln2.html")}}</div>
<div>{{js_property_attributes(0, 0, 0)}}</div>
<h2 id="설명">설명</h2>
<p><code>LN2</code>는 <code>Math</code>의 정적 속성이므로, 사용자가 생성한 <code>Math</code> 객체의 속성으로 접근할 수 없고 항상 <code>Math.LN2</code>를 사용해야 합니다. (<code>Math</code>는 생성자가 아닙니다)</p>
<h2 id="Examples">Examples</h2>
<h3 id="Math.LN2_사용하기"><code>Math.LN2</code> 사용하기</h3>
<p>다음 함수는 2의 자연 로그 값을 반환합니다.</p>
<pre class="brush:js">function getNatLog2() {
return Math.LN2;
}
getNatLog2(); // 0.6931471805599453
</pre>
<h2 id="명세">명세</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td>{{SpecName('ES1')}}</td>
<td>{{Spec2('ES1')}}</td>
<td>Initial definition. Implemented in 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>
<tr>
<td>{{SpecName('ESDraft', '#sec-math.ln2', 'Math.LN2')}}</td>
<td>{{Spec2('ESDraft')}}</td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="브라우저_호환성">브라우저 호환성</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.LN2")}}</p>
<h2 id="같이_보기">같이 보기</h2>
<ul>
<li>{{jsxref("Math.exp()")}}</li>
<li>{{jsxref("Math.log()")}}</li>
<li>{{jsxref("Math.log2()")}}</li>
</ul>
|
