My understanding is ZX calculus is more like a “calculus” or a nice toolkit. So you probably still cannot bypass regular QC formalism (being able to manipulate things fast doesn’t mean you necessarily understand it well)

Hi there, we would like to understand how you use Stack Exchange as an undergraduate/graduate. Would be appreciated if you could fill out this short form.

I personally believe the main distinction could be on the content side. CourseHero and Studocu serve great resources and provide almost unlimited choices but you have to take trials to find the best for you (if it exists).

What we wish to achieve is to have a selected set of high-quality and consistent-in-style contents aligned with specific courses at some universities. We believe that could benefit most of the students particularly at those universities.

Finally, I don’t think we “complete” cause we are a group of students sharing the same vision and not a corporation. You can find us open-sourced at https://github.com/flibrary

The idea is wonderful but GitHub is not a good file hosting solution. Eventually you will receive a DMCA or C&D. Consider incorporating and putting the file hosting in another jurisdiction using a self hosted git server like Gogs or Onedev.

Thanks. We are gradually phasing out past practice of “abusing” GitHub to host images by making use of CDNs.

Thanks for your feedback. And yes, we are aware of the underlying copyright issues of notes or study guides as derivations of textbooks or courses. We wish we could find a satisfying middle ground.

As for the contents, actually one (Linear Algebra in Diagrams) is in English, and indeed most of the upcoming guides are designed to be either purely English or bilingual. But yes, we do have some in other language as well.

The "Linear Algebra in Diagrams"[1] seems interesting, but I didn't understand how I can download. Do I need to register and "purchase" even though it's $0 cost?

[1] https://flibrary.info/store/prod_info?prod_id=e9fdcce3-937e-...

Yes. It’s practically free but you do need to sign up to purchase it.

After purchase, you can always find and download it at your personal portal under “Digital Contents Owned”.

Cool thx. I signed up and got the PDF. I'll have to print and read the proofs... In my books I go for more applied (not using general thm-proof style for each detail), so it will be very interesting to see formal proofs presented succinctly.

Minireference is awesome! I love the style and purpose of the textbooks by minireference incorporates!

Thank you for feedback. I try very hard to make compact explanations, but it's not always easy since some ideas are inherently complex, and once you include prerequisite topics (like `apt-get install x` pulls in dependency packages y,z,...) it ends up being hundreds of pages.

Sometimes it's amazing though, you can condense a lot of material in just a few pages of notes, see for exmaple the linear algebra tutorial https://minireference.com/static/tutorials/linear_algebra_in...

You might want to consider implementing metadata sanitization and cleaning uploaded files to prevent institutions from persecuting uploaders.

This sounds more like a last resort as we don’t pirate notes and guides. We might try to constructively solve the issue by obtaining permit from copyright holder of the original work or even register copyright for our derivative works like those notes and guides.