Scilab

Scilab is a free, open‑source environment for numerical computation that runs on Windows, Linux and macOS. It provides a high‑level programming language with access to a large collection of mathematical functions and advanced data structures, enabling users to perform a wide range of scientific and engineering calculations. The platform also includes 2‑D and 3‑D graphics capabilities for visualizing results.

In addition to the core language, Scilab offers Xcos, a graphical editor for building and simulating hybrid dynamical systems models. This visual tool allows users to design complex system diagrams without writing code, complementing the textual programming environment. A variety of tutorials and references are available, covering topics such as signal processing, data import from Excel, and epidemiological modeling.

The software is targeted at students, academics, engineers, and scientists who need a flexible, extensible framework for numerical analysis and modeling. Its open‑source nature and community support through forums, GitLab, and social platforms provide resources for learning, extending functionality, and collaborating on projects.