old_contents: import numpy as np
  
  Matrix_A = np.array( [[1,1],[0,1]] )
  Matrix_B = np.array( [[2,0],[3,4]] )
  
  print Matrix_A*Matrix_B
  
  print Matrix_A.dot(Matrix_B) 
  
  print np.dot(Matrix_A, Matrix_B)    
  
new_contents: import numpy as np
  
  Matrix_A = np.array( [[1,1],[0,1]] )
  Matrix_B = np.array( [[2,0],[3,4]] )
  
  print Matrix_A*Matrix_B
  
  print Matrix_A.dot(Matrix_B) 
  
  print np.dot(Matrix_A, Matrix_B)    
  
  Matrix_C = np.ones((2,3), dtype=int)
  Matrix_C *= 3
  
  print Matrix_C
  
  Matrix_D = np.ones((2,3), dtype=int)
  
  print Matrix_C+Matrix_D
  
  
subject: Add matrix operator