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1 files changed, 14 insertions, 0 deletions

diff --git a/node_modules/es5-ext/math/log2/shim.js b/node_modules/es5-ext/math/log2/shim.js
new file mode 100644
index 00000000..51fcdae9
--- /dev/null
+++ b/node_modules/es5-ext/math/log2/shim.js
@@ -0,0 +1,14 @@
+"use strict";
+
+var log = Math.log, LOG2E = Math.LOG2E;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value < 0) return NaN;
+	if (value === 0) return -Infinity;
+	if (value === 1) return 0;
+	if (value === Infinity) return Infinity;
+
+	return log(value) * LOG2E;
+};