def quadratic(a, b, c):
delta = pow(b, 2) - 4 a c
if delta < 0 :
print('方程无解')
else :
sqrtDelta = math.sqrt(delta)
x1 = (-b + sqrtDelta) / 2 a
x2 = (b + sqrtDelta) / 2 a
return (x1, x2)
print('欢迎使用一元二次方程ax^2+bx+c=0求根函数')
a = float(input('a = '))
b = float(input('b = '))
c = float(input('c = '))
result = quadratic(a,b,c)
if result is not None :
print('解为x1 = %f, x2 = %f' %(result))
xinyujaychou
#练习 ax2 + bx + c = 0 的解
def quadratic(a, b, c): delta = pow(b, 2) - 4 a c if delta < 0 : print('方程无解') else : sqrtDelta = math.sqrt(delta) x1 = (-b + sqrtDelta) / 2 a x2 = (b + sqrtDelta) / 2 a return (x1, x2)
print('欢迎使用一元二次方程ax^2+bx+c=0求根函数') a = float(input('a = ')) b = float(input('b = ')) c = float(input('c = ')) result = quadratic(a,b,c) if result is not None : print('解为x1 = %f, x2 = %f' %(result))