#a few simple programs to illustrate the use
#of the if statement and its relatives
#These will be progressively more complex
#systems for computing income tax.

#In this simple version, the tax is simply 15% of
#the income over $20,000
def tax1():
  tax=0
  income = input("Enter income")
  if income>20000:
    tax=0.15*(income-20000)
  #we print the amount of tax rounded to a whole
  # dollar amount
  print "Your tax is $",int(round( tax))