human
I am working on the file "05-classes-oop.ipynb".
The first task is:
The final special function we'll look at (although there are many more, many of which may be useful) is __mul__. This allows Python to multiply two variables together. With this we can take the product of two polynomials:
Can you write Python code for it?
 ... Can you provide a the Python code you requested?
assistant
#Here is the Python code you requested.

class Polynomial(object):
    """Representing a polynomial."""
    explanation = "I am a polynomial"
    
    def __init__(self, roots, leading_term):
        self.roots = roots
        self.leading_term = leading_term
        self.order = len(roots)
        
    def __repr__(self):
        string = str(self.leading_term)
        for root in self.roots:
            if root == 0:
                string = string + "x"
            elif root > 0:
                string = string + "(x - {})".format(root)
            else:
                string = string + "(x + {})".format(-root)
        return string
    
    def __mul__(self, other):
        roots = self.roots + other.roots
        leading_term = self.leading_term * other.leading_term
        return Polynomial(roots, leading_term)
    
    def explain_to(self, caller):
        print("Hello, {}. {}.".format(caller,self.explanation))
        print("My roots are {}.".format(self.roots))

p = Polynomial(p_roots, p_leading_term)
q = Polynomial((1,1,0,-2), -1)
r = p*q
print(r)