title: Delete a column containing 0 from a matrix in Scilab
body: <p>I have a matrix looks like</p>
  
  <p>1 2 3 4 5 6 </p>
  0 1 0 1 0 1</p>
  
  <p>Now I would like to delete all the rows which containing 0, so that the result should be </p>
  
  <p>2 4 6 </p>
  1 1 1</p>
  
  <p>I have search other similar topics but cannot work it out. Could you help me plesase?</p>