binary_decimal.rb

binary_to_decimal.rb

-Original file line number
+Diff line change
@@ -0,0 +1,17 @@
+    def binary_to_decimal(binary_array)
+      decimal_array = []
+      power_of_2 = 7
+      binary_array.each do |bit|
+        decimal_of_bit = bit * (2 ** power_of_2)
+        decimal_array << decimal_of_bit
+        power_of_2 = power_of_2 - 1
+      end
+      sum = 0
+      decimal_array.each do |decimal|
+        sum += decimal
+      end
+      return sum
+    end

lib/binary_to_decimal.rb

-Original file line number
+Diff line change
@@ -1,9 +1,17 @@
-    # A method named `binary_to_decimal` that receives as input an array of size 8.
-    # The array is randomly filled with 0’s and 1’s.
-    # The most significant bit is at index 0.
-    # The least significant bit is at index 7.
-    # Calculate  and return the decimal value for this binary number using
-    # the algorithm you devised in class.
     def binary_to_decimal(binary_array)
-      raise NotImplementedError
+      decimal_array = []
+      power_of_2 = 7
+      binary_array.each do |bit|
+        decimal_of_bit = bit * (2 ** power_of_2)
+        decimal_array << decimal_of_bit
+        power_of_2 = power_of_2 - 1
+      end
+      sum = 0
+      decimal_array.each do |decimal|
+        sum += decimal
+      end
+      return sum
     end

Karis - Edges - BinaryAndDecimal #39

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kimj42 wants to merge 3 commits into Ada-C10:master from kimj42:master

-Original file line number
+Diff line change
@@ -0,0 +1,17 @@
+    def binary_to_decimal(binary_array)
+      decimal_array = []
+      power_of_2 = 7
+      binary_array.each do |bit|
+        decimal_of_bit = bit * (2 ** power_of_2)
+        decimal_array << decimal_of_bit
+        power_of_2 = power_of_2 - 1
+      end
+      sum = 0
+      decimal_array.each do |decimal|
+        sum += decimal
+      end
+      return sum
+    end

-Original file line number
+Diff line change
@@ -1,9 +1,17 @@
-    # A method named `binary_to_decimal` that receives as input an array of size 8.
-    # The array is randomly filled with 0’s and 1’s.
-    # The most significant bit is at index 0.
-    # The least significant bit is at index 7.
-    # Calculate  and return the decimal value for this binary number using
-    # the algorithm you devised in class.
     def binary_to_decimal(binary_array)
-      raise NotImplementedError
+      decimal_array = []
+      power_of_2 = 7
+      binary_array.each do |bit|
+        decimal_of_bit = bit * (2 ** power_of_2)
+        decimal_array << decimal_of_bit
+        power_of_2 = power_of_2 - 1
+      end
+      sum = 0
+      decimal_array.each do |decimal|
+        sum += decimal
+      end
+      return sum
     end

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