second_degre.py

Created on October 06, 2020

440 Bytes

second_deg() retourne les solution d’une équation du type ax²+bx+c=0

def second_deg():
  a=float(input("a?"))
  b=float(input("b?"))
  c=float(input("c?"))
  delta=b**2-4*a*c
  print("Delta =",delta)
  if delta<0:
    print("Delta<0")
    print("Pas de solution")
    return False
  elif delta==0:
    print("solution conjuguée")
    s=-b/(2*a)
    print("s :",s)
  else:
    s1=(-b-delta**.5)/(2*a)
    s2=(-b+delta**.5)/(2*a)
    print("s1 :",s1)
    print("s2 :",s2)
    return (s1,s2)