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16 lines
474 B
16 lines
474 B
var $ = require('../internals/export'); |
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var expm1 = require('../internals/math-expm1'); |
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// eslint-disable-next-line es/no-math-cosh -- required for testing |
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var $cosh = Math.cosh; |
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var abs = Math.abs; |
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var E = Math.E; |
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// `Math.cosh` method |
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// https://tc39.es/ecma262/#sec-math.cosh |
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$({ target: 'Math', stat: true, forced: !$cosh || $cosh(710) === Infinity }, { |
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cosh: function cosh(x) { |
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var t = expm1(abs(x) - 1) + 1; |
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return (t + 1 / (t * E * E)) * (E / 2); |
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} |
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});
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