Calculator: Mary Lamkin Amp

calc.rb

@@ -0,0 +1,74 @@
+class Object
+  def is_number?
+    self.to_f.to_s == self.to_s || self.to_i.to_s == self.to_s
+  end
+end
+
+puts "Welcome to the okayest calculator ever!"
+
+puts "Are we using floats or integers today?"
+num_class = gets.chomp.downcase
+
+num_options = ["integer", "integers", "float", "floats"]
+
+until num_options.include?(num_class)
+  print "Was that a float or integer? "
+  num_class = gets.chomp.downcase
+end
+
+print "Please enter an operation: "
+user_operation = gets.chomp.downcase
+
+operations = ["add", "+", "subtract", "-", "multiply", "*", "divide", "/",
+"^", "exponent", "**", "%", "modulo"]
+
+until operations.include?(user_operation)
+  print "Please enter valid operation, remember-this calculator is only okay: "
+  user_operator = gets.chomp.downcase
+end
+
+print "Please enter the first number of your problem: "
+num1 = gets.chomp
+  until num1.is_number?
+    print "Please enter a number, remember-this calculator is only okay: "
+    num1 = gets.chomp
+  end
+
+  if num1.include?(".")
+    num1 = num1.to_f
+  else
+    num1 = num1.to_i
+  end
+
+print "Please enter the second number of your problem: "
+num2 = gets.chomp
+  until num2.is_number?
+    print "Please enter a number, remember-this calculator is only okay: "
+    num2 = gets.chomp
+  end
+
+  if num2.include?(".")
+    num2 = num2.to_f
+  else
+    num2 = num2.to_i
+  end
+
+
+case user_operation
+  when "add" , "+"
+    puts "#{num1} + #{num2} = #{num1 + num2}"
+  when  "subtract" , "-"
+    puts "#{num1} - #{num2} = #{num1 - num2}"
+  when "multiply" , "*"
+    puts "#{num1} * #{num2} = #{num1 * num2}"
+  when "divide" , "/"
+    if num2 == 0
+      puts "Cannot divide by 0"
+    else
+      puts "#{num1} / #{num2} = #{num1 / num2}"
+    end
+  when "^" , "exponent" , "**"
+    puts "#{num1} ^ #{num2} = #{num1 ** num2}"
+  when "%" , "modulo"
+    puts "#{num1} % #{num2} = #{num1 % num2}"
+end