<h1 id="relational-algebra-environment">Relational Algebra Environment<a aria-hidden="true" class="anchor-heading icon-link" href="#relational-algebra-environment"></a></h1>
A learning environment/<a href="/inquiry/notes/86Sf5BfBEjs3PqSBrucXe">IDE/Photoshop/DAW for X</a>/reasoning environment for relational algebra (similar to <a href="/inquiry/notes/06ea3d39-0b83-4052-86f2-f1e82499b266">Linear Algebra as Spreadsheet</a>).
Eg what does this look like in a UI? <a href="https://en.wikipedia.org/wiki/Projection_(relational_algebra)">https://en.wikipedia.org/wiki/Projection_(relational_algebra)</a>
Is this just SQL or...?
<a href="https://ltworf.github.io/relational/screnshots.html">https://ltworf.github.io/relational/screnshots.html</a>
Would it look like Natto?
Would it look like UML?
<a href="https://www.ifi.uzh.ch/dam/jcr:ffffffff-96c1-007c-0000-00004eacf242/ReportHartmannFA.pdf">https://www.ifi.uzh.ch/dam/jcr:ffffffff-96c1-007c-0000-00004eacf242/ReportHartmannFA.pdf</a>
<a href="https://www.doc.ic.ac.uk/~pjm/teaching/student_projects/pm105_report.pdf">https://www.doc.ic.ac.uk/~pjm/teaching/student_projects/pm105_report.pdf</a>
<a href="https://www.researchgate.net/publication/328764241_DB-Learn_Studying_Relational_Algebra_Concepts_by_Snapping_Blocks">https://www.researchgate.net/publication/328764241_DB-Learn_Studying_Relational_Algebra_Concepts_by_Snapping_Blocks</a>
How do these slides use representations?
<a href="https://hope.simons-rock.edu/~mbarsky/utor/teaching/CSC343-2016/content/w5/02.01.Relational%20algebra.pdf">https://hope.simons-rock.edu/~mbarsky/utor/teaching/CSC343-2016/content/w5/02.01.Relational%20algebra.pdf</a>
<a href="https://cs.gmu.edu/~jessica/cs450_f15/cs450_Relational_Algebra1.pdf">https://cs.gmu.edu/~jessica/cs450_f15/cs450_Relational_Algebra1.pdf</a>
<a href="https://en.wikipedia.org/wiki/Referential_integrity">https://en.wikipedia.org/wiki/Referential_integrity</a>
<a href="/inquiry/notes/bff6ee82-45d7-4702-bb59-542b05920ae9">How do you create an interaction semantics?</a>

Relational Algebra Environment


This is [Max Krieger](https://a9.io)'s "inquiry" page. I guess it's like a [Digital Garden](https://github.com/MaggieAppleton/digital-gardeners). But I'm not trying to upload my Second Brain to it. Just want to share some half-baked ideas. One source of inspiration for this was Kevin Lynagh's ["Collaboration ideas"](https://kevinlynagh.com/ideas/). See also Sharif Shameem's ["Questions"](https://sharif.io/questions/).

It was made with [Dendron](https://dendron.so).

Take everything I write here (well, everywhere) with a grain of salt. That said I'm always happy to talk about anything on here.

The pages definitely don't adhere to [Andy's Evergreen Notes](https://notes.andymatuschak.org/z4SDCZQeRo4xFEQ8H4qrSqd68ucpgE6LU155C) pattern, I hope one day they do.

Feel free to add [a PR or issue to the repo](https://github.com/maxkrieger/inquiry) to discuss any of these in public!

## Guide

Here are some of my favorite/extensive pages:

- [[Linear algebra as spreadsheet|projects.linear-algebra-spreadsheet]]
- [[Domain learning for computational microworlds|rethinking-media.microworld-languages]]
- [[Linux DE prototyping|projects.linux-desktop]]
- [[System Archaeology|projects.system-archaeology]]

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