In [1]:
import sympy as sy
import numpy as np
import control.matlab as cm

In [4]:
s = sy.symbols('s')
num = sy.expand(-0.47124*(s-2)*(s+1.273)**2)
den = sy.expand(s**2*(s+2))

sy.simplify(sy.div(num,den,s))


Out[4]:
(-0.47124, 0.68518296*s**2 + 1.63589599404*s + 1.52731617192)

In [ ]: