diff options
Diffstat (limited to 'node_modules/es5-ext/math/sinh/shim.js')
-rw-r--r-- | node_modules/es5-ext/math/sinh/shim.js | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/node_modules/es5-ext/math/sinh/shim.js b/node_modules/es5-ext/math/sinh/shim.js new file mode 100644 index 000000000..fc6a04776 --- /dev/null +++ b/node_modules/es5-ext/math/sinh/shim.js @@ -0,0 +1,18 @@ +// Parts of implementation taken from es6-shim project +// See: https://github.com/paulmillr/es6-shim/blob/master/es6-shim.js + +"use strict"; + +var expm1 = require("../expm1") + , abs = Math.abs + , exp = Math.exp + , e = Math.E; + +module.exports = function (value) { + if (isNaN(value)) return NaN; + value = Number(value); + if (value === 0) return value; + if (!isFinite(value)) return value; + if (abs(value) < 1) return (expm1(value) - expm1(-value)) / 2; + return (exp(value - 1) - exp(-value - 1)) * e / 2; +}; |