import math
def quadratic(a, b, c):
if a==0:
if b==0:
print ('It cannot both be zero !')
else:
return -c/b
elif b**2-4*a*c<0:
return 'No answer'
q1=math.sqrt(b**2-4*a*c)
x1=( -b+q1)/(2*a)
x2=( -b-q1)/(2*a)
return x1,x2
quadratic(0, 0, 1)
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用户7424820678
import math
def quadratic(a, b, c):
if a==0:
if b==0:
print ('It cannot both be zero !')
else:
return -c/b
elif b**2-4*a*c<0:
return 'No answer'
else:
q1=math.sqrt(b**2-4*a*c)
x1=( -b+q1)/(2*a)
x2=( -b-q1)/(2*a)
return x1,x2
quadratic(0, 0, 1)