title: Adding 2 matrix and Multiplying 2 matrix in python by using scipy/numpy
body: <p>I am trying to use scipy and numpy to perform matrix addition and multiplication.</p>
  
  <p>I have 2 matrix "a" and "b". my goal is to add "a" and "b" together and store the result into a matrix "c"</p>
  
  <p>Also I want to multiply "a" and "b" and store into a matrix "d". </p>
  
  <p>Are there any function perform like that in Scipy/Numpy? </p>
  
  <p>Thanks a lot.</p>