updated the Math.sin() method doc #23584
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| page-type: javascript-static-method | ||
| browser-compat: javascript.builtins.Math.sin |
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| page-type: javascript-static-method | |
| browser-compat: javascript.builtins.Math.sin |
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Preview URLs (comment last updated: 2024-09-18 03:17:40) |
jasonren0403
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Sep 16, 2024
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| ## 概述 | ||
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| ## 概述 |
| @@ -7,11 +7,13 @@ slug: Web/JavaScript/Reference/Global_Objects/Math/sin | |||
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| ## 概述 | |||
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| **`Math.sin()`** 函数返回一个数值的正弦值。 | |||
| **`Math.sin()`** 静态方法返回一个弧度的正弦值。 | |||
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| **`Math.sin()`** 静态方法返回一个弧度的正弦值。 | |
| **`Math.sin()`** 静态方法以弧度为单位返回一个数字的正弦值。 |
| @@ -22,19 +24,21 @@ Math.sin(x) | |||
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| ## 描述 | |||
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| ## 描述 | |
| ### 返回值 |
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| 由于 `sin` 是 `Math` 的静态方法，所以应该像这样使用：`Math.sin()`，而不是作为你创建的 `Math` 实例的方法。 | ||
| 由于 `sin` 是 `Math` 的静态方法，所以应该像这样使用：`Math.sin()`，而不是作为你创建的 `Math` 实例的方法（`Math` 不是构造函数）。 |
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| 由于 `sin` 是 `Math` 的静态方法，所以应该像这样使用：`Math.sin()`，而不是作为你创建的 `Math` 实例的方法（`Math` 不是构造函数）。 | |
| 由于 `sin()` 是 `Math` 的静态方法，应该总是以 `Math.sin()` 的形式，而不是作为 `Math` 对象的方法来使用它（`Math` 不是构造函数）。 |
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| 由于 `sin` 是 `Math` 的静态方法，所以应该像这样使用：`Math.sin()`，而不是作为你创建的 `Math` 实例的方法。 | ||
| 由于 `sin` 是 `Math` 的静态方法，所以应该像这样使用：`Math.sin()`，而不是作为你创建的 `Math` 实例的方法（`Math` 不是构造函数）。 | ||
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| ## 示例 | ||
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| ### 示例：使用 `Math.sin` |
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| ### 示例：使用 `Math.sin` | |
| ### 使用 Math.sin() |
| ## 描述 | ||
| ## 返回值 | ||
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| `x` 的正弦值，介于 -1 到 1 之间（包含 -1 和 1）。如果 `x` 为 {{jsxref("Infinity")}}、`-Infinity` 或 {{jsxref("NaN")}},则返回 {{jsxref("NaN")}}。 |
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| `x` 的正弦值，介于 -1 到 1 之间（包含 -1 和 1）。如果 `x` 为 {{jsxref("Infinity")}}、`-Infinity` 或 {{jsxref("NaN")}},则返回 {{jsxref("NaN")}}。 | |
| `x` 的正弦值，介于 -1 到 1 之间（包含 -1 和 1）。如果 `x` 为 {{jsxref("Infinity")}}、`-Infinity` 或 {{jsxref("NaN")}}，则返回 {{jsxref("NaN")}}。 |
sora32127
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Oct 6, 2024
Co-authored-by: Jason Ren <[email protected]>
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Description
updated the Math.sin() method doc.
Motivation
to update the doc and keep the doc up-to-date.
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