#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import math
def quadratic(a, b, c):
x = (-b + math.sqrt(b*b - 4*a*c))/(2*a)
y = (-b - math.sqrt(b*b - 4*a*c))/(2*a)
return x, y
print('quadratic(2, 3, 1) =', quadratic(2, 3, 1))
print('quadratic(1, 3, -4) =', quadratic(1, 3, -4))
if quadratic(2, 3, 1) != (-0.5, -1.0):
print('测试失败')
elif quadratic(1, 3, -4) != (1.0, -4.0):
else:
print('测试成功')
看了大家的代码,觉得自己做的太烂,没有验证,不通用,直接复制结果进行验证,没考虑无实根的情况,再接再厉学习不能急功近利。
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祥子920
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import math
def quadratic(a, b, c):
x = (-b + math.sqrt(b*b - 4*a*c))/(2*a)
y = (-b - math.sqrt(b*b - 4*a*c))/(2*a)
return x, y
print('quadratic(2, 3, 1) =', quadratic(2, 3, 1))
print('quadratic(1, 3, -4) =', quadratic(1, 3, -4))
if quadratic(2, 3, 1) != (-0.5, -1.0):
print('测试失败')
elif quadratic(1, 3, -4) != (1.0, -4.0):
print('测试失败')
else:
print('测试成功')
看了大家的代码,觉得自己做的太烂,没有验证,不通用,直接复制结果进行验证,没考虑无实根的情况,再接再厉学习不能急功近利。