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e<sub>x<sub> to e<sup>x<sup>

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Kaipeng Lu
2016-02-01 14:33:52 +08:00
parent 5d673d9b98
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docs/number.md
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@@ -512,7 +512,7 @@ ES6新增了4个对数相关方法。
**（1） Math.expm1()**
`Math.expm1(x)`返回e<sub>x</sub> - 1，即`Math.exp(x) - 1`。
`Math.expm1(x)`返回e<sup>x</sup> - 1，即`Math.exp(x) - 1`。
```javascript
Math.expm1(-1); // -0.6321205588285577