Linda Ogbevoen

Temperature Conversion

This ruby program will prompt the user for a temperature in degrees Celsius and let the user know what the corresponding temperature is in Fahrenheit.

 
def celsius_to_fahrenheit(celsius)
    return 1.8 * celsius + 32
end

puts "How many degrees in Celsius is it today?"

celsius = gets.to_i

puts "Did you know #{celsius} celsius is #{celsius_to_fahrenheit(celsius)} fahrenheit?"

puts "enter a number"

number = gets.to_i

def last_digit(number)
  number % 10
end

def last_two_digits(number)
  number % 100
end

def suffix(number)
  if last_two_digits(number) >= 11 && last_two_digits(number) <= 13
    return "th"

  elsif last_digit(number) == 1
    return "st"

  elsif last_digit(number) == 2
    return "nd"

  elsif last_digit(number) == 3
    return "rd"

  else
    return "th"
  end
end     

Ordinal Challenge

This ruby program will convert a plain number to the ordinal of the number. So for example, if the user enters 2, it will display 2nd, if the user enters 3, it will display 3rd, etc.

Foobar

This ruby program is an adaptation of a classic technical interview problem which displays sequences of the Foobar pattern.

def foobar(n)
  if n % 3 == 0 && n % 5 != 0
    puts "foo"
    
  elsif n % 5 ==0 && n % 3 != 0
    puts "bar"
  
  elsif n % 3 == 0 && n % 5 == 0
    puts "foobar"
  else
    puts n
  end
end

print "How many digits do you want to see in the pattern?"

digits = gets.to_i 

pattern = (1..digits)

pattern.each do |n|
  foobar(n)
end