#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
ENGG1811 Lecture Week 4

Solving quadratic equation, use try ... except (Version 1)
    
"""


# Import the math module - Need that for square root
import math 

# Specify the coefficients of the quadratic equation
print("Please input three numbers separated by commas")
a, b, c = eval(input("Numbers please: "))

try:    
    # Compute the square root of the discriminant 
    root_discriminant = math.sqrt(b**2-4*a*c)
    root1 = (-b + root_discriminant)/(2*a)
    root2 = (-b - root_discriminant)/(2*a)
    
    # Display the answers 
    print('The roots are ',root1,' and ', root2)
except: 
    print('Something wrong!')