1defmodule Math do
2 def sum(a, b) do
3 a + b
4 end
5
6 defp multi(a, b) do
7 a * b
8 end
9
10 def zero?(0) do
11 true
12 end
13
14 def zero?(x) when is_integer(x) do
15 false
16 end
17end
18
19IO.puts(Math.sum(1, 2))
20
21IO.puts(Math.zero?(0))
22IO.puts(Math.zero?(1))
23IO.puts(Math.zero?(0.0))
besaid.zone