Can I use it one-handed in my workshop? :-) There is no single perfect tool.

Maxima isn't a GNU package, is it?

It's forked from MacSyma and released under a GNU General Public License (GPL).

https://en.wikipedia.org/wiki/Maxima_(software)

Cayley (1975–1993), now Magma, predates it somewhat and has recently been used to crack post Quantum cryptography candidates.

https://dl.acm.org/doi/10.1145/1089355.1089359

https://en.wikipedia.org/wiki/Magma_(computer_algebra_system...

It's not a GNU project though.

(Maybe ggp is thinking of the Matlab clone Octave, which is?)

Running in WASM!