es.math.asinh.js 445 B

12345678910111213141516
  1. var $ = require('../internals/export');
  2. var nativeAsinh = Math.asinh;
  3. var log = Math.log;
  4. var sqrt = Math.sqrt;
  5. function asinh(x) {
  6. return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : log(x + sqrt(x * x + 1));
  7. }
  8. // `Math.asinh` method
  9. // https://tc39.github.io/ecma262/#sec-math.asinh
  10. // Tor Browser bug: Math.asinh(0) -> -0
  11. $({ target: 'Math', stat: true, forced: !(nativeAsinh && 1 / nativeAsinh(0) > 0) }, {
  12. asinh: asinh
  13. });