方程求解为什么不能这么写？
为什么不可以这么写？
import math
def quadratic_equation(a, b, c):
x = []
a * x * x + b * x + c = 0
return x
print quadratic_equation(2, 3, 0)
print quadratic_equation(1, -6, 5)
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为什么不可以这么写？
import math
def quadratic_equation(a, b, c):
x = []
a * x * x + b * x + c = 0
return x
print quadratic_equation(2, 3, 0)
print quadratic_equation(1, -6, 5)
2017-09-07
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