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Showing content from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Math/cosh below:

Math.cosh()

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Math.cosh(x) = ex + e - x 2 \mathtt{\operatorname{Math.cosh(x)}} = \frac{e^x + e^{-x}}{2} è¯æ³ åæ° æè¿°

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js

Math.cosh(0); // 1
Math.cosh(1); // 1.5430806348152437
Math.cosh(-1); // 1.5430806348152437

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