Here's a 10% clone of Mathematica - https://mathics.org/

sn9 · 2025-12-07T00:45:12 1765068312

This reminded me of one of the greatest posts in the history of the internet, and I am devastated to report that it no longer exists: https://news.ycombinator.com/item?id=6516114

babayega2 · 2025-12-06T13:39:34 1765028374

Maxima is the clone. I remember using it 20 years ago. very nice.

zozbot234 · 2025-12-06T15:09:19 1765033759

It's more like both Mathematica and Maxima are clones of the original MACSYMA.

pkaye · 2025-12-07T01:16:14 1765070174

Maxima is based on the DOE (Department of Energy) fork of MACSYMA.

Y_Y · 2025-12-06T15:33:39 1765035219

Maxima is a similar CAS, but it's not a clone of Mathematica like Mathics aims to be.

pfortuny · 2025-12-06T15:01:12 1765033272

Maxima, despite its shortcomings, is a great tool for symbolic computation.