SciPy

SciPy (pronounced “Sigh Pie”) is a Python-based ecosystem of open-source software for mathematics, science, and engineering. In particular, these are some of the core packages: NumPy, SciPy library, M...
Language(s): Python, Fortran, C, C++
Operating system(s): Cross-platform
License: BSD-new license

Scilab

Scilab is free and open source software for numerical computation providing a powerful computing environment for engineering and scientific applications. Scilab is released as open source under the Ce...
Language(s): Scilab, C, C++, Java, Fortran
Operating system(s): BSD, FreeBSD, Linux, Mac OS, Windows
License: GPLv2