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Use Python to write a function that finds the solution to a quadratic equation in real numbers
- 高洛峰Original
- 2017-03-27 15:09:322106browse
def quar(a,b,c):
if not isinstance(a,(int,float))|isinstance(b,(int,float))|isinstance(c,(int,float)):
raise TypeError('Wrong Type inputing!')
else:
from math import sqrt
tmp1=b**2-4*a*c
if tmp1>0:
return '%.04f'%float((-b+sqrt(tmp1))/(2*a)),'%.04f'%((-b-sqrt(tmp1))/(2*a))
elif tmp1==0:
return -b/(2*a)
else:
return 'No rational answer!'
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