#basic practice
a=10
b=3
c=a/b-a
print(c,type(c))
c=a/b*a
print(c,type(c))
c=0.1*a//b-a
print(c,type(c))
c=a//b+a%b
print(c,type(c))
#additional practic
# a=chicken b=rabit
#a+b=35 2*a +4*b=94
importnumpyasnp
a = np.array([[1,1],[2,4]])
b= np.array([35,94])
x=np.linalg.solve(a,b)
print(x)
