Python and Sage

SAGE is a free open-source mathematical software system that uses Python as its primary programming language. It aims to promote open-source software in mathematics. SAGE includes interfaces to many existing mathematical software packages and provides its own functionality for areas like algebra, calculus, and linear algebra. Using SAGE allows mathematical researchers to access powerful tools for computation while having the flexibility of an open-source system programmed in Python. However, SAGE currently has limited funding, which restricts its development and ability to match capabilities of closed-source alternatives.