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/

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