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-rw-r--r--files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html14
1 files changed, 7 insertions, 7 deletions
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html
index 64064017c7..b4ded024ac 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html
@@ -5,22 +5,22 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/atan2
---
<div>{{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
<p><code><strong>Math.atan2(</strong></code><code><strong>)</strong></code> 返回从原点(0,0)到(x,y)点的线段与x轴正方向之间的平面角度(弧度值),也就是Math.atan2(y,x)</p>
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
<pre class="syntaxbox">Math.atan2(<em>y</em>, <em>x</em>) </pre>
-<h2 id="Parameters" name="Parameters">参数</h2>
+<h2 id="Parameters">参数</h2>
<dl>
<dt><code>y, x</code></dt>
<dd>数值</dd>
</dl>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
<p><code>atan2</code> 方法返回一个 -pi 到 pi 之间的数值,表示点 (x, y) 对应的偏移角度。这是一个逆时针角度,以弧度为单位,正X轴和点 (x, y) 与原点连线 之间。注意此函数接受的参数:先传递 y 坐标,然后是 x 坐标。</p>
@@ -28,9 +28,9 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/atan2
<p>由于 <code>atan2</code> 是 <code>Math</code> 的静态方法,所以应该像这样使用:<code>Math.atan2()</code>,而不是作为你创建的 <code>Math</code> 实例的方法。</p>
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
-<h3 id="Example_Using_Math.atan2" name="Example:_Using_Math.atan2">例子:使用 <code>Math.atan2</code></h3>
+<h3 id="Example_Using_Math.atan2">例子:使用 <code>Math.atan2</code></h3>
<pre class="brush:js">Math.atan2(90, 15) // 1.4056476493802699
Math.atan2(15, 90) // 0.16514867741462683
@@ -127,7 +127,7 @@ Math.atan2(15, 90) // 0.16514867741462683
</table>
</div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
<ul>
<li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>