Solutions to extra exercises

Dear @anton-akhmerov, @t.vandersar
Would it be possible to make the solutions to the extra excercies found in the attic section available?

(In case they don’t see this soon, you can download them from the source gitlab they make available and run in vscode or similar to display. Or just copy-paste the equations into a latex editor to display them, if you prefer.)
(Another fun way is to realise that the pages are still there just not visible. What I like to do is open the exercise page, so in this case “…/extra_exercises/” . You might notice that the solutions page for any exercise is called the same, just with a “…_solutions” at the end. So if we try adding that to our extra exercises “page…/extra_exercises_solutions/” we should get access to the invisible solutions page :))) )
I hope the lecturers are okay with me sharing this here otherwise I can always delete this post (I think?). But it is indeed nice to be able to doublecheck with the answers right after solving an exercise when it’s still fresh in mind :))

That file exists and has some solutions, but we don’t actively maintain those exercises.

About publishing the solutions: we don’t actively prevent them from being accessible, and rather only hide them as suggestion to not look at them before trying yourself.