Indeed. Sage was written by and for academics in academia doing research in pure mathematics. There's also been a fair amount of work to make it usable for und

Indeed. Sage was written by and for academics in academia doing research in pure mathematics. There's also been a fair amount of work to make it usable for undergrad math courses (started originally by some undergrads I hired actually). The only significant overlap with industry in terms of dev support is probably crypto research... But the Python ecosystem overall is pretty strong in industry, and Sage is part of that ecosystem...