On Fri, Dec 19, 2008 at 12:48 PM, Collin D <collin.da...@gmail.com> wrote: > UPDATE: > > #import > from math import sqrt > > # collect data > a = float(raw_input('Type a value: ')) > b = float(raw_input('Type b value: ')) > c = float(raw_input('Type c value: ')) > > # create solver > def solver(a,b,c): > disc = b**2 - 4*a*c > if disc < 0: > return 'No real solution.' > else: > sol1 = (-b + (sqrt(disc))) / (2*a) > sol2 = (-b - (sqrt(disc))) / (2*a) > return (sol1, sol2)
You do not need the else here. return will always return control to the calee. Try this: class Unsolveable(Exception): pass # create solver def solver(a, b, c): disc = b**2 - 4*a*c if disc < 0: raise Unsolveable() return -b + (sqrt(disc) / (2*a)), -b - (sqrt(disc) / (2*a)) -- http://mail.python.org/mailman/listinfo/python-list