[luishenrique]

Famosa fórmula de Bháskara:

# -*- coding: cp1252 -*-
# Formula de Bhaskara by tchandy < tchandy@gmail.com >
from math import sqrt
import sys
def getvalor():
	return float(numb) ** 2 - 4 * float(numa) * float(numc)
print
print
print "Formula de Bhaskara"
print
print 
while 1:
	try:
		numa = float(raw_input("Insira o valor de A: "))
		print
		numb = float(raw_input("Insira o valor de B: "))
		print
		numc = float(raw_input("Insira o valor de C: "))
		print
		break
	except:
		print
		print "Insira um Numero Valido"
		print 
while 1: 
	try:
		res1 = (- float(numb) + sqrt(getvalor()))
		res2 = (- float(numb) - sqrt(getvalor()))
		x1 = res1 / (2.0 * float(numa))
		x2 = res2 / (2.0 * float(numa))
		print "O Resultado eh"
		print "X1 = %s." % x1
		print "X2 = %s." % x2
		break
	except:
		print
		print "Nao existem raizes para esses numeros"
		print
		sys.exit()

Fonte: http://www.vivaolinu...haskarafinal.py