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 [5]:

    
class Line(object):
    
    def __init__(self,coor1,coor2):
        self.coor1 = coor1
        self.coor2 = coor2
    
    def distance(self):
        return ((self.coor1[0] - self.coor2[0])**2 + (self.coor1[1] - self.coor2[1])**2)**(0.5)
    
    def slope(self):
        return float(self.coor1[1] - self.coor2[1])/(self.coor1[0] - self.coor2[0])



In [6]:

    
# EXAMPLE OUTPUT

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

li = Line(coordinate1,coordinate2)



In [7]:

    
li.distance()









    Out[7]:





9.433981132056603



In [8]:

    
li.slope()









    Out[8]:





1.6

Problem 2

Fill in the class



In [20]:

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



In [22]:

    
# EXAMPLE OUTPUT
c = Cylinder(2,3)



In [23]:

    
c.volume()









    Out[23]:





56.52



In [24]:

    
c.surface_area()









    Out[24]:





94.2



In [ ]: