title: How can I output a matrix in Octave?
body: <p>I got 2 files, the first one is the master, that calls the second one. 
  So, I want to output a matrix created in the second file, while runs the first file, I guess via printf in the master file maybe?? </p>
  
  <p>I've tried this way and didn't work, besides the fact that shows the rows in the place of columns: </p>
  
  <pre><code>    printf("[%f; %f; %f]\n",r)
  </code></pre>