json-q
Version:
Retrieves values from JSON objects (and JavaScript objects) by css-selector-like query (includes attribute filters and array flattening).
13 lines (11 loc) • 317 B
JavaScript
// 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));
}
});