homework_2018_1_08_1038414799.ipynb

Kernel: Python 3

%pylab inline 
import sympy
sympy.init_printing()

Populating the interactive namespace from numpy and matplotlib

M=np.matrix([[5.,-4.,0],[-4.,7.,-3.],[0,-3.,5.]])#Matrix
Ma=np.column_stack((M,[1.,0,-2]))#Augmented matrix
sympy.Matrix(Ma)#Print matrix with sympy 

$$\left[\begin{matrix}5.0 & -4.0 & 0.0 & 1.0\\-4.0 & 7.0 & -3.0 & 0.0\\0.0 & -3.0 & 5.0 & -2.0\end{matrix}\right]$$