You, a tech startup with millions in angel finance: made an app to turn handwritten maths into TeX.

Me, just the worst kind of smart alec: convinced a pen #plotter to turn TeX into handwritten maths

A history of mathematical notations

Book by Florian Cajori

In collections: History, Notation and conventions, Lists and catalogues

URL: http://www.maths.ed.ac.uk/~aar/papers/cajorinot.pdf

Entry: https://read.somethingorotherwhatever.com/entry/CajoriNotations

The term "non-technical" (as applied to people-in-the-software-business-other-than-programmers) is pretty obviously pejorative and biased; I think most people get that.

But some days it hits me just how delusional it is that the software business refers to itself as "the tech industry", as if other things are _not_ technology. Like, go build a microscope, genius; then you can get back to spouting off about how the world revolves around NodeJS....

A system of mathematical notation for string figures: https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.738.2977&rep=rep1&type=pdf

Cited in a recent paper on string figures among the Awiakay people of New Guinea: https://www.academia.edu/44377116/Talking_about_strings_The_language_of_string_figure_making_in_a_Sepik_society_in_Papua_New_Guinea

A system of mathematical notation for string figures: https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.738.2977&rep=rep1&type=pdf

Cited in a recent paper on string figures among the Awiakay people of New Guinea: https://www.academia.edu/44377116/Talking_about_strings_The_language_of_string_figure_making_in_a_Sepik_society_in_Papua_New_Guinea

Tom Lehrer has released his songs and lyrics into the public domain.

What a nice thing to do.

A universal differential equation

Article by Lee A. Rubel

In collections: Fun maths facts, Unusual computers

There exists a non trivial fourth-order algebraic differential equation \[P(y',y'',y''',y'''') = 0,\] where \(P\) is a polynomial in four variables, with integer coefficients, such that for any continuous function \(\phi\) on \((-\infty,\infty)\) and for any positive continuous function \(\varepsilon(t)\) on...

URL: https://projecteuclid.org/euclid.bams/1183548125

Entry: https://read.somethingorotherwhatever.com/entry/Auniversaldifferentialequation

monospace font recommendation

for the record, some new "coding ligatures" fonts that have decent international support:

Iosevka

https://typeof.net/Iosevka/

agave

https://github.com/agarick/agave

Hasklig

https://github.com/i-tu/Hasklig

(from parent Source Code Pro)

Mensch

https://robey.lag.net/2010/06/21/mensch-font.html

(from parent Menlo)

Victor Mono

https://rubjo.github.io/victor-mono/

found via https://www.programmingfonts.org/

I like the _idea_ of Victor Mono but I think Iosevka looks better…none of them are as cute as Fira :(

Information on creating marbled paper with LaTeX! https://people.csail.mit.edu/jaffer/Marbling/.

You can find the package documentation here: https://ctan.org/pkg/pst-marble .

Sir Thomas Urquhart was a 17th-century Scottish eccentric who tried to systematize a new language for trigonometry; the law of sines was abbreviated as “eproso”, which (if you know the system) encapsulates its meaning.

OMFG A FEDERATED SCHOLARLY COMMUNICATIONS PLATFORM!

I literally cannot wait to dig into this!! It's what I've been wanting!

#Accessibility

A color contrast checker that offers alternatives if your color combination has not enough contrast. It would be cool to chose if you want to change background or foreground though but it's still very nice to get suggestions

- Favourite Unicode math font
- Libertinus

- Currently studying
- Category theory; group theory

Joined Jul 2018