temperature converter

c2f

# Temperature converter
# Made by Stian
#
puts "Convert from Celsius to Fahrenheit or Fahreinheit to Celsius"
puts "Please select 1 for Celsius or 2 for Fahrenheit"
selection = gets.to_i

# Conversion formulas
# °F = (°C · 9/5) + 32
# °C = (°F − 32) · 5/9
#
if selection == "1"
  puts "Enter Celsius value: "
  celsius = gets.to_f
  fahrenheit = (celsius * 9 / 5) + 32 
  puts "Your Fahrenheit value is: #{fahrenheit}."
elsif selection == "2"
  puts "Enter Fahrenheit value: "
  fahrenheit = gets.to_f
  celsius = (fahrenheit - 32) * 5 / 9
  puts "Your Celsius value is: #{celsius}."
end