Encapsulation (2)

And:

import math

def degreesToRadians(degrees):
  radians=(degrees/360)*2*math.pi
  return radians

print 'degrees\tfraction (m/m)'
slopeDegrees = 0.0
while slopeDegrees < 30.0:
  slopeRadians=degreesToRadians(slopeDegrees)
  slopeFraction=math.tan(slopeRadians)
  print slopeDegrees, '\t', slopeFraction
  slopeDegrees=slopeDegrees+5.0

can be rewritten as:

import math

def degreesToRadians(degrees):
  radians=(degrees/360)*2*math.pi
  return radians

def degreesToFraction(degrees):
  radians=degreesToRadians(degrees)
  fraction=math.tan(radians)
  return fraction

print 'degrees\tfraction (m/m)'
slopeDegrees = 0.0
while slopeDegrees < 30.0:
  slopeFraction=degreesToFraction(slopeDegrees)
  print slopeDegrees, '\t', slopeFraction
  slopeDegrees=slopeDegrees+5.0