title: Application for solving linear system of equations
body: <p>I needed an application for solving linear systems of equations (N up to 10), so I got different codes, and compile them, and they seem to work, but I get lots of problems with precision. I mean, the solvers are really very sensitive to small changes of the system.</p>
  
  <p>So, could somebody recommend to me a reliable commandl ine application for this purpose? Or some useful open source code (and easy to compile)</p>
  
  <p>Thanks</p>