Siva Kalyan @skalyan@mathstodon.xyz

Celebrate all types of love, online friends!

Exciting unintended typography! Using the League of Moveable Type's Junction font, the word "office" looks like "offfice", I guess because it applies an ff ligature and then an fi ligature.

The existence of "markdown" implies the existence of

- matthewup
- lukeleft
- johnright

I made the Dune movie poster letters with math symbols

⊃∪∩∈

Warning: film may contain spoilers for content of film

One of my dogs likes tennis balls and the other likes sticks. I am getting them this educational toy so that they will learn about topology.

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

Tired: Camps to teach "non technical" people to become software developers.

Wired: Camps to teach programmers how to write, design, participate in a community, and all the other things.

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

https://tomlehrersongs.com/

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