Object Oriented Programming

Homework Assignment

Problem 1

Fill in the Line class methods to accept coordinate as a pair of tuples and return the slope and distance of the line.



In [19]:

    
import math
class Line(object):
    
    def __init__(self,coor1,coor2):
        self.coor1 = coor1
        self.coor2 = coor2
        return
    
    def distance(self):
        return math.sqrt((self.coor2[1]-self.coor1[1])**2+(self.coor2[0]-self.coor1[0])**2)
    
    def slope(self):
        return (self.coor2[1]-self.coor1[1])/(self.coor2[0]-self.coor1[0])



In [20]:

    
# EXAMPLE OUTPUT

coordinate1 = (3,2)
coordinate2 = (8,10)

li = Line(coordinate1,coordinate2)



In [21]:

    
li.distance()









    Out[21]:





9.433981132056603



In [22]:

    
li.slope()









    Out[22]:





1.6

Problem 2

Fill in the class



In [26]:

    
class Cylinder(object):
    pi = 3.14
    
    def __init__(self,height=1,radius=1):
        self.height = height
        self.radius = radius
        return
        
    def volume(self):
        return Cylinder.pi*self.radius**2*self.height
    
    def surface_area(self):
        return (Cylinder.pi*self.radius**2*2)+(2*Cylinder.pi*self.radius*self.height)



In [27]:

    
# EXAMPLE OUTPUT
c = Cylinder(2,3)



In [28]:

    
c.volume()









    Out[28]:





56.52



In [29]:

    
c.surface_area()









    Out[29]:





94.2



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