# Program to compute the roots of a quadratic equation
# (user enters coefficients)
# Matt Bishop, May  1, 2009
# for ECS 10 Spring 2009
import math             # load up the math functions

# compute the discriminant
# parameters: a, b, c: coefficients
# returns: b^2 -4acv
def discrim(a, b, c):
	return b * b - 4 * a * c;

def main():
	try:
		# read in the coefficients
		a, b, c = input("Enter coefficents (a,b,c) separated by commas: ");

		# get the discriminant
		d = discrim(a, b, c);
		if (d < 0):
			print "The roots are complex numbers";
		else:
			# get the first root
			r1 = (-b + math.sqrt(d)) / (2*a);
	
			# get the second root
			r2 = (-b - math.sqrt(d)) / (2*a);
			
			# print them out
			print "The roots are", r1, "and", r2;
        # handle errors
	except ValueError:
		print "You didn't give me the right number of inputs";
	except TypeError:
		print "You didn't give me the right number of inputs";
	except SyntaxError:
		print "Missing commas";



main()