Sage

Sage is an open-source software platform designed for mathematics and computational research. It provides tools for performing complex calculations, algebra, calculus, and data analysis, similar to high-end math software. Sage integrates many existing mathematical libraries into a single, user-friendly interface, often through a web browser. This makes advanced mathematics accessible to students, educators, and researchers without expensive licenses. Overall, Sage aims to promote open collaboration in mathematics by making powerful computational tools freely available and easy to use.