feat(calc): use rational number for abitrary precision

1 files changed, 1 insertions, 0 deletions

diff --git a/mix.exs b/mix.exs
index 8105791..988b6c5 100644
--- a/mix.exs
+++ b/mix.exs
@@ -23,6 +23,7 @@ defmodule ElixirMathParser.MixProject do
   # Run "mix help deps" to learn about dependencies.
   defp deps do
     [
+      {:ratio, "~> 4.0"}
       # {:dep_from_hexpm, "~> 0.3.0"},
       # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
     ]