# quadratic4.py
#    A program that computes the real roots of a quadratic equation.
#    Illustrates use of a multi-way decision

import math 

def main():
    print "This program finds the real solutions to a quadratic\n"

    a, b, c = input("Please enter the coefficients (a, b, c): ")

    discrim = b * b - 4 * a * c
    if discrim < 0:
        print "\nThe equation has no real roots!"
    elif discrim == 0:
        root = -b / (2 * a)
        print "\nThere is a double root at", root
    else:
        discRoot = math.sqrt(b * b - 4 * a * c)
        root1 = (-b + discRoot) / (2 * a)
        root2 = (-b - discRoot) / (2 * a)
        print "\nThe solutions are:", root1, root2 

main()