title: Numpy and Scipy installation on windows
body: <p>I have installed Numpy successfully. <a href="http://www.scipy.org/Installing_SciPy/Windows" rel="noreferrer">But on the site</a> , there is lot of things that I have to do such as building Numpy, Scipy, downloading ATLAS, LAPACK etc. I am really confused and even I have checked some of the other queries also. Still not able to understand.</p>
  
  <p>Can anyone please explain me what exactly should I do? I have cygwin installed on my pc. </p>
  
  <ol>
  <li>How to buid Numpy? whats the use of building numpy?</li>
  <li>How to install Scipy? </li>
  <li>Whats ATLAS, LAPACK etc etc ?</li>
  </ol>
  
  <p>Thank you so much(in advance).</p>