A. Dumas  wrote:
> Dennis Lee Bieber  wrote:
>> This release once again includes Mathematic/Wolfram
>
> Yes, that's great. It's also a new version of Mathematica. Strangely,
> matrix multiplication (and solving linear systems which is about the same)
> is ~20% slower with V12 on a Pi4 than with V11.4 on a Pi3. Some
> point-release work to do for them.
>
https://blog.wolfram.com/2019/07/11/mathematica-12-available-on-the-new-raspber
ry-pi-4/

... to be clear: the new Mathematica 12 also works on other Raspberry Pis,
not just the Pi4. I don't know whether it works on Stretch but my guess
would be no.

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