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Editing: es.math.tanh.js
var $ = require('../internals/export'); var expm1 = require('../internals/math-expm1'); var exp = Math.exp; // `Math.tanh` method // https://tc39.es/ecma262/#sec-math.tanh $({ target: 'Math', stat: true }, { tanh: function tanh(x) { var n = +x; var a = expm1(n); var b = expm1(-n); return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(n) + exp(-n)); } });
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