23 lines
686 B
Markdown
23 lines
686 B
Markdown
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---
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title: Math
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localeTitle: 数学
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---
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## 数学
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`Math`是JavaScript的标准内置对象,包含数学常量和函数作为属性和方法。最值得注意的是它包含常量π和Euler常量以及诸如`floor()` , `round()` , `ceil()`等函数。
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### 例
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以下示例显示如何使用`Math`对象编写计算圆的面积的函数:
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```javascript
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function calculateCircleArea(radius) {
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return Math.PI * Math.pow(radius, 2);
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}
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calculateCircleArea(1); // 3.141592653589793
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```
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### 其他资源
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* [MDN网络文档](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math)
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* [W3Schools的](https://www.w3schools.com/js/js_math.asp)
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