from macslib import *
from math import *

# Remember to rename this function for the 2D version
def distance1D(x1, x2):
  # add a variable for the y coordinate for the first point above
  # add a variable for the y coordinate for the second point above

  # change the distance calculation to use the 2D distance formula we derived
  # to square something you need to write (x-y)**2
  distance = sqrt( (x2 - x1)**2 )

  print "Distance: " + str(distance)

  # uncomment this line to see a plot of 2D distance!
  # drawPoints([x1,x2], [y1,y2], title="Distance: " + str(distance), xaxis=["X",-10,10], yaxis=["Y",-10,10])

# Test to see how it works
distance1D(2, 4)