find max feature implementation

maths/find_max.rb

@@ -0,0 +1,66 @@
+# A ruby program to find max from a set of elements
+
+module FindMax
+  # This find_max method will return the max element out of the array
+  def self.find_max(*array)
+    max = array[0]
+    array.each do |a|
+      if a >= max
+        max = a
+      end
+    end
+    puts "The Max of the following elements #{array} is #{max}."
+    rescue
+        puts "Error: Please provide number only!"
+  end
+
+  # The max method will return the maximum element from the set of input elements provided
+  def self.predefined_max(*array)
+    puts "The Max of the following elements #{array} is #{array.max}."
+    rescue
+      puts "Error: Please provide number only!"
+  end
+
+  # The sort method will sort the elements in ascending order. And the last method will return the end element out of the array
+  def self.predefined_sort_last_max(*array)
+    puts "The Max of the following elements #{array} is #{array.sort.last}."
+    rescue
+      puts "Error: Please provide number only!"
+  end
+end
+
+# Using find_max
+# Valid inputs
+FindMax.find_max(11, 29, 33)
+# The Max of the following elements [11, 29, 33] is 33.
+
+FindMax.find_max(-221, -852, -1100, -10)
+# The Max of the following elements [-221, -852, -1100, -10] is -10.
+
+# Invalid inputs
+FindMax.find_max(5, "95", 2)
+# Error: Please provide number only!
+
+# Using predefined_max
+# Valid inputs
+FindMax.predefined_max(51, 82, 39)
+# The Max of the following elements [51, 82, 39] is 82.
+
+FindMax.predefined_max(-11, -51, -10, -10)
+# The Max of the following elements [-11, -51, -10, -10] is -10.
+
+# Invalid inputs
+FindMax.predefined_max("x", 5, 95, 2)
+# Error: Please provide number only!
+
+# Using predefined_sort_last_max
+# Valid inputs
+FindMax.predefined_sort_last_max(1, 2, 3)
+# The Max of the following elements [1, 2, 3] is 3.
+
+FindMax.predefined_sort_last_max(-21, -52, -100, -1)
+# The Max of the following elements [-21, -52, -100, -1] is -1.
+
+# Invalid inputs
+FindMax.predefined_sort_last_max(5, 95, 2, "a")
+# Error: Please provide number only!