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graphe-matrice.py

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  • racines.py 501 B
    from math import sqrt;
    # résolution équation quadratique 
    def trinome(a, b, c):
        delta = b**2 - 4*a*c
        if delta > 0.0:
            assert(a != 0)      
            racine_delta = sqrt(delta)
            return (2, (-b-racine_delta)/(2*a), (-b+racine_delta)/(2*a))
        elif delta < 0.0: return (0,)
        else: 
            assert(a != 0)     
            return (1, (-b/(2*a)))
        
    if __name__ == "__main__":
        print(trinome(1.0, -3.0, 2.0))
        print(trinome(1.0, -2.0, 1.0))
        print(trinome(1.0, 1.0, 1.0))