SciPy (pronounced "Sigh Pie") is open-source software for mathematics, science,
and engineering. It is also the name of a very popular conference on scientific
programming with Python. The core library is NumPy which provides convenient
and fast N-dimensional array manipulation. The SciPy library is built to work
with NumPy arrays, and provides many user-friendly and efficient numerical
routines such as routines for numerical integration and optimization.
Together, they run on all popular operating systems, are quick to install, and
are free of charge. NumPy and SciPy are easy to use, but powerful enough to be
depended upon by some of the world's leading scientists and engineers. If you
need to manipulate numbers on a computer and display or publish the results,
give SciPy a try!