converter.rb

def deg2ra(num)
  if num < 0
    deg = deg + 360
  elsif num > 360
    puts "input should not exceed 360!"
  end
  
  hour = (num/15).to_i()
  min = ((num-15*hour)*4).to_i()
  sec = (4*num-60*hour-min)*60
  
  final = "#{hour}h#{min}m#{sec}s"
end

def deg2dec(num)
  num = num.to_f()
  if num < 0 then
    sign = "-"
    num = num*(-1)
  else
    sign = "+"
  end
  
  if num > 180
    puts "input should not exceed 180!"
  elsif num > 90
    # exceeds 90, so convert to - dec
    num -= 90
    sign = "-"
  end
  
  hour = num.to_i()
  min = (( num - num.to_i() ) * 60).to_i()
  sec = ( (num-num.to_i() ) * 60 - min ) * 60
  
  sign + "#{hour}h#{min}m#{sec}s"
  
end