title: Toeplitz matrix using numpy/scipy
body: <p>In Octave or Matlab there is a neat, compact way to create large Toeplitz matrices, for example:</p>
  
  <pre><code>T = toeplitz([1,-0.25,zeros(1,20)])
  </code></pre>
  
  <p>That saves a lot of time that would otherwise be spent to fill the matrix with dozens or hundreds of zeros by using extra lines of code.</p>
  
  <p>Yet I don't seem to be able to do the same with neither scipy or numpy, although those two libraries have both toeplitz() and zeros() functions.
  Is there a similar way to do that or do I have to put together a routine of my own to do that (not a huge problem, but still a nuisance)?</p>
  
  <p>Thanks,</p>
  
  <p>F.</p>