title: Matlab division, cannot get back the answer
body: <pre><code>    H = [1 2; 3 4; 5 6; 7 8; 9 10; 11 12; 13 14; 15 16];
      X = [7; 9];
      Y = H*X;
      H1 = Y/X;
  </code></pre>
  
  <p>This is my code. As you can see, I was trying to get back the H values. However, it gave me something else. I have tried to use inv() but this is not possible because X is not a square matrix. </p>