From 8bdb48f318464e79ea53563c90ee20b592b4f37d Mon Sep 17 00:00:00 2001
From: Kay N <30675614+kayxn23@users.noreply.github.com>
Date: Tue, 21 Aug 2018 21:37:22 -0700
Subject: [PATCH] Create binary_to_decimal.rb

---
 binary_to_decimal.rb | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 binary_to_decimal.rb

diff --git a/binary_to_decimal.rb b/binary_to_decimal.rb
new file mode 100644
index 0000000..154249b
--- /dev/null
+++ b/binary_to_decimal.rb
@@ -0,0 +1,9 @@
+def binary_to_decimal(binary_array) #[01010100] 2**7 ~ 2**0
+  sum = 0
+  length = 8
+  binary_array.each do |i|
+    length -= 1
+    sum += i.to_i * (2**length)
+  end
+  sum
+end