Array chapter

[condekind]

This PR introduces a new chapter about arrays.

[MarcoGorelli]

thanks @condekind, this looks on the right track ! i know this is still in draft, but just leaving an early comment in case it's helpful

[MarcoGorelli]

Nice one @condekind ! 🙌

Just a comment - could you add a test which involves midpoint_2d please? just to ensure it keeps working the same way in the future

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I've reworded the "2d arrays" a bit to just "arrays" - I get that the array represents a 2d point, but I think technically if each row has say (2, 4) (x-coord, y-coord) then [2, 4] is a 1-d array of length 2?

[condekind]

Nice one @condekind ! 🙌

Just a comment - could you add a test which involves midpoint_2d please? just to ensure it keeps working the same way in the future

I've reworded the "2d arrays" a bit to just "arrays" - I get that the array represents a 2d point, but I think technically if each row has say (2, 4) (x-coord, y-coord) then [2, 4] is a 1-d array of length 2?

Thanks for catching that, you're right!

I added a simple test now, see if that's enough (it uses some of the same points as the ones in run.py, I hope that's fine)

[MarcoGorelli]

awesome, thanks so much @condekind !