if a==0: if b==0: return '常函数无解' else: x=-c/b return x elif bb-4ac<0: return '无解' else: x1=(-b+math.sqrt(bb-4ac))/(2a) x2=(-b-math.sqrt(bb-4ac))/(2*a) return (x1,x2)
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if a==0: if b==0: return '常函数无解'
else: x=-c/b return x elif bb-4ac<0: return '无解' else: x1=(-b+math.sqrt(bb-4ac))/(2a) x2=(-b-math.sqrt(bb-4ac))/(2*a) return (x1,x2)