Scipy adds a great deal of functionality to Numpy. It is suited for more complex computing. This package is not necessary to use Numpy, but if you are interested the online documentation can be found at http://docs.scipy.org/doc/scipy/reference/.
Go to http://sourceforge.net/projects/scipy/files/scipy/0.9.0/
Mac users download and run scipy-0.9.0-py2.7-python.org-macosx10.3.dmg
Windows users download and run scipy-0.9.0-win32-superpack-python2.7.exe
- You can also choose to install from source