title: What is the fastest way to write a matrix to a text file in Octave?
body: <p>I have a large matrix (2e6 x 3) which I have to write to a text file. </p>
  
  <p>dlmwrite takes about 230s to achieve this task.</p>
  
  <p>From your experience what is the fastest way to write a large matrix to a text file?</p>