qq_MissChen_2
2016-08-17 15:59
import math
def quadratic_equation(a, b, c):
d = b*b-4*a*c
if d>=0:
x1 = (-b)/(2*a) + math.squrt(d)/(2*a)
x2 = (-b)/(2*a) - math.squrt(d)/(2*a)
return x1,x2
else:
return None
print quadratic_equation(2,3,0)
print quadratic_equation(1,-6,5)
应该是sqrt吧?
函数拼错了,我醉了看半天,是math.sqrt()
。。。。squrt() 是什么鬼,,,
初识Python
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