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
-  end
 
   def calculate_verbose(stack, operation) do
-    try do
     {:ok, operation.(stack)}
   rescue
     e -> {:error, e.message}
   end
-  end
 end