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author | Florian Dold <florian.dold@gmail.com> | 2017-08-14 05:01:11 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2017-08-14 05:02:09 +0200 |
commit | 363723fc84f7b8477592e0105aeb331ec9a017af (patch) | |
tree | 29f92724f34131bac64d6a318dd7e30612e631c7 /node_modules/es5-ext/math/asinh/shim.js | |
parent | 5634e77ad96bfe1818f6b6ee70b7379652e5487f (diff) |
node_modules
Diffstat (limited to 'node_modules/es5-ext/math/asinh/shim.js')
-rw-r--r-- | node_modules/es5-ext/math/asinh/shim.js | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/node_modules/es5-ext/math/asinh/shim.js b/node_modules/es5-ext/math/asinh/shim.js new file mode 100644 index 000000000..30ce2e4d6 --- /dev/null +++ b/node_modules/es5-ext/math/asinh/shim.js @@ -0,0 +1,15 @@ +"use strict"; + +var log = Math.log, sqrt = Math.sqrt; + +module.exports = function (value) { + if (isNaN(value)) return NaN; + value = Number(value); + if (value === 0) return value; + if (!isFinite(value)) return value; + if (value < 0) { + value = -value; + return -log(value + sqrt(value * value + 1)); + } + return log(value + sqrt(value * value + 1)); +}; |