Mathics – A free, light-weight alternative to Mathematica
I would like to take this amazing opportunity to tell anyone who doesn't know about WolframAlpha to go give it a shot.<p>Shortest, simplest description I can give is that it is the best AI-less science-heavy digital brain out there. Or as Wikipedia puts it "a computational knowledge engine".<p><a href="https://wolframalpha.com" rel="nofollow">https://wolframalpha.com</a><p>Edit: apparently Siri and Alexa sometimes query WolframAlpha.