SciPy (pronounced "Sigh Pie") is open-source software for mathematics, science, and engineering. 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. matplotlib and ipython are nice to have in connection with scipy, but scipy does not depend on them. Since ver. 0.14.0 scipy uses SuperLU instead of UMFPACK for solving unsymmetric sparse linear systems. If you want to use UMFPACK you must install it in advance of numpy and build numpy accordingly (see the README to numpy's SlackBuild). Moreover, after installing scipy, you have to install scikit-umfpack. If you need to build scipy for debugging, set DEBUG=y. NOTE: this is for Python 3. If you need Python 2 support, install python2-scipy. This script installs scipy ver. 1.9.1, the last possible version for Slackware 15.0. Newer versions require a newer Cython (as a build dependency).