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 [18]:

    
class Line(object):
    
    def __init__(self,coor1,coor2):
        self.coor1 = coor1
        self.coor2 = coor2
    
    def distance(self):
        x1,y1 = self.coor1
        x2,y2 = self.coor2
        return ( (x2-x1)**2 + (y2-y1)**2 )**0.5
    
    def slope(self):
        x1,y1 = self.coor1
        x2,y2 = self.coor2
        return float((y2-y1))/(x2-x1)



In [19]:

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

li = Line(coordinate1,coordinate2)



In [20]:

    
li.distance()









    Out[20]:





9.433981132056603



In [21]:

    
li.slope()









    Out[21]:





1.6

Problem 2

Fill in the class



In [31]:

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



In [32]:

    
c = Cylinder(2,3)



In [34]:

    
c.volume()









    Out[34]:





56.52



In [35]:

    
c.surface_area()









    Out[35]:





94.2



In [ ]: