Add bin and edit workflow

bin/gems/facets-3.1.0/test/standard/math/test_exp2.rb

@@ -0,0 +1,14 @@
+require 'facets/math/exp2'
+require 'facets/numeric/range'  # used to test within a precision
+
+test_case Math do
+
+  class_method :exp2 do
+    test do
+      Math.exp2(0.0).range(1.0e-6).assert === 1.0
+      Math.exp2(0.5).range(1.0e-6).assert === Math.sqrt(2.0)
+      Math.exp2(1.0).range(1.0e-6).assert === 2.0
+    end
+  end
+
+end