This commit is contained in:
sanfan.hx
2019-05-28 10:32:16 +08:00
parent 9132c00272
commit ec46955a9e
13228 changed files with 624107 additions and 56 deletions

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// 20.2.2.33 Math.tanh(x)
var $export = require('./_export');
var expm1 = require('./_math-expm1');
var exp = Math.exp;
$export($export.S, 'Math', {
tanh: function tanh(x) {
var a = expm1(x = +x);
var b = expm1(-x);
return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x));
}
});