---
title: Math.sinh()
slug: Web/JavaScript/Reference/Global_Objects/Math/sinh
translation_of: Web/JavaScript/Reference/Global_Objects/Math/sinh
---
<div>{{JSRef}}</div>

<p><strong><code>Math.sinh()</code></strong> 함수(쌍곡선 함수)는 사인값을 반환합니다 이 값은 아래와같은 식을통해서 표현할 수 있습니다.{{jsxref("Math.E", "constant e", "", 1)}}:</p>

<p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mo lspace="0em" rspace="thinmathspace">Math.sinh(x)</mo></mstyle><mo>=</mo><mfrac><mrow><msup><mi>e</mi><mi>x</mi></msup><mo>-</mo><msup><mi>e</mi><mrow><mo>-</mo><mi>x</mi></mrow></msup></mrow><mn>2</mn></mfrac></mrow><annotation encoding="TeX">\mathtt{\operatorname{Math.sinh(x)}} = \frac{e^x - e^{-x}}{2}</annotation></semantics></math></p>

<div>{{EmbedInteractiveExample("pages/js/math-sinh.html")}}</div>

<h2 id="Syntax">Syntax</h2>

<pre class="syntaxbox"><code>Math.sinh(<var>x</var>)</code></pre>

<h3 id="Parameters">Parameters</h3>

<dl>
 <dt><code>x</code></dt>
 <dd>숫자.</dd>
</dl>

<h3 id="Return_value">Return value</h3>

<p>사인값.</p>

<h2 id="Description">Description</h2>

<p><code>sinh()</code> 는 <code>Math</code> 의 정적 함수이기 때문에, 자바스크립트 어디든 <code>Math.sinh()</code> 를 사용할 수 있습니다, 따라서  <code>Math</code> 오브젝트를 생성해서는 안됩니다. (<code>Math</code> 는 constructor(생성자) 가 아닙니다.).</p>

<h2 id="Examples">Examples</h2>

<h3 id="Math.sinh_사용하기"><code>Math.sinh()</code> 사용하기</h3>

<pre class="brush: js">Math.sinh(0); // 0
Math.sinh(1); // 1.1752011936438014
</pre>

<h2 id="Polyfill">Polyfill</h2>

<p>This can be emulated with the help of the {{jsxref("Math.exp()")}} function:</p>

<pre class="brush: js">Math.sinh = Math.sinh || function(x) {
  return (Math.exp(x) - Math.exp(-x)) / 2;
}
</pre>

<p>or using only one call to the {{jsxref("Math.exp()")}} function:</p>

<pre class="brush: js">Math.sinh = Math.sinh || function(x) {
  var y = Math.exp(x);
  return (y - 1 / y) / 2;
}
</pre>

<h2 id="Specifications">Specifications</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('ES2015', '#sec-math.sinh', 'Math.sinh')}}</td>
   <td>{{Spec2('ES2015')}}</td>
   <td>Initial definition.</td>
  </tr>
  <tr>
   <td>{{SpecName('ESDraft', '#sec-math.sinh', 'Math.sinh')}}</td>
   <td>{{Spec2('ESDraft')}}</td>
   <td></td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<p>{{Compat("javascript.builtins.Math.sinh")}}</p>

<h2 id="See_also">See also</h2>

<ul>
 <li>{{jsxref("Math.acosh()")}}</li>
 <li>{{jsxref("Math.asinh()")}}</li>
 <li>{{jsxref("Math.atanh()")}}</li>
 <li>{{jsxref("Math.cosh()")}}</li>
 <li>{{jsxref("Math.tanh()")}}</li>
</ul>