Pipes-KimberleyZell-Calculator

calculatorbasic.rb

@@ -0,0 +1,52 @@
+operators_array = %w[+ add - subtract * multiply / divide]
+num1 = nil
+num2 = nil
+answer = nil
+
+puts "Welcome to the Calculator program!\n"
+puts "What would you like to do (add (+), subtract (-), multiply (*) or divide (/))?"
+operator = gets.chomp.to_s.downcase
+
+# def correct_operator
+#   if operators_array.include?(operator) == false
+#   puts "That is not a valid option, please try again."
+#   end
+# end
+
+until operators_array.include? (operator)
+  puts "That is not a valid option, please try again."
+  operator = gets.chomp.to_s
+end
+
+
+until num1 != nil && num2 != nil
+  puts "What is the first number?"
+  num1 = gets.chomp.to_f
+  puts "What is the second number?"
+  num2 = gets.chomp.to_f
+  if num1 == nil || num2 == nil
+    puts "Whoops, you entered something that isn't a number! Please try again."
+  end
+end
+
+def math(operator, num1, num2)
+  if operator == "+" || operator == "add"
+    return num1 + num2
+  elsif operator == "-" || operator == "subtract"
+    return num1 - num2
+  elsif operator == "*" || operator == "multiply"
+    return num1 * num2
+  else operator == "/" || operator == "divide"
+    if num2 == 0
+      puts "I'm sorry, I can't divide by 0. Please start over."
+      exit
+    else
+      return num1 / num2
+    end
+  end
+end
+
+
+
+
+puts "The answer is #{math(operator, num1, num2)}."

calculatorwithoptionals.rb

@@ -0,0 +1,71 @@
+
+operators_array = ["+", "add", "-", "subtract", "*", "multiply", "/", "divide", "^", "to the power of", "%", "modulo" ]
+num1 = nil
+num2 = nil
+answer = nil
+total_operators = operators_array.length - 1
+
+puts "Welcome to the Calculator program!\n"
+puts "What would you like to do:"
+
+i = 0
+total_operators.times do
+  print "#{operators_array[i]}, "
+  i+=1
+end
+print "or #{operators_array.last}\n"
+operator = gets.chomp.to_s.downcase
+
+until operators_array.include? (operator)
+  puts "#{operator} is not a valid option, please try again."
+  operator = gets.chomp.to_s
+end
+
+
+until num1 == "0" || num1.class == Integer
+  puts "What is the first number?"
+  num1 = gets.chomp
+  if num1 != "0" && num1.to_i == 0
+    puts "Whoops, #{num1} isn't a number! Please try again."
+    num1 = nil
+  else num1 = num1.to_i
+  end
+end
+
+until num2 == "0" || num2.class == Integer
+  puts "What is the second number?"
+  num2 = gets.chomp
+  if num2 != "0" && num2.to_i == 0
+    puts "Whoops, #{num1} isn't a number! Please try again."
+    num2 = nil
+  else num2 = num2.to_i
+  end
+end
+
+
+def math(operator, num1, num2)
+  if operator == "+" || operator == "add"
+    return num1 + num2
+  elsif operator == "-" || operator == "subtract"
+    return num1 - num2
+  elsif operator == "*" || operator == "multiply"
+    return num1 * num2
+  elsif operator == "/" || operator == "divide"
+    if num2 == 0
+      puts "I'm sorry, I can't divide by 0. Please start over."
+      exit
+    else
+      return (num1.to_f / num2.to_f).round(2)
+    end
+  elsif operator == "^" || operator == "the the power of"
+    return (num1.to_f / num2.to_f).round(2)
+  elsif operator == "%" || operator == "modulo"
+    return num1 % num2
+  end
+end
+
+answer = "#{math(operator, num1, num2)}"
+equation = "#{num1} #{operator} #{num2} = #{answer}"
+
+
+puts "The answer is #{equation}."