title: Symbolic integration in Octave? (Need to Install extantion? How? - Using Ubuntu 12.04)
body: <p>I would like to calculate the following symbolic expression in GNU Octave: </p>
  
  <p>int(exp(ikx-|k|^n),k,-infinity,infinity) , (- it would a function of 'x' of-course, where 'x' is an array of data.) </p>
  
  <ul>
  <li><p>I don't succeed. </p></li>
  <li><p>I understood, searching a bit in the internet, that Octave does not come initially with a built-in 'Symbolic math' suite.  </p></li>
  </ul>
  
  <p>Is this true? 
  How do I download and install it (using Ubuntu 12.04, from the 'Terminal'?)? </p>
  
  <p>Thanking u on advance! </p>