rpn_calculator v2

elixir/rpn-calculator/lib/rpn_calculator.ex

@@ -4,18 +4,14 @@ defmodule RPNCalculator do
   end
 
   def calculate(stack, operation) do
-    try do
-      {:ok, operation.(stack)}
-    rescue
-      _e -> :error
-    end
+    {:ok, operation.(stack)}
+  rescue
+    _e -> :error
   end
 
   def calculate_verbose(stack, operation) do
-    try do
-      {:ok, operation.(stack)}
-    rescue
-      e -> {:error, e.message}
-    end
+    {:ok, operation.(stack)}
+  rescue
+    e -> {:error, e.message}
   end
 end