"Like parsley in Greek food: Elementary set theory and the case for DM1" by Siddharth Bhaskar (https://dblp.org/pid/170/0077.html) got accepted at SIGCSE TS 2026.

https://sigcse2026.sigcse.org/details/sigcse-ts-2026-Papers/164/Like-parsley-in-Greek-food-Elementary-set-theory-and-the-case-for-DM1

#SIGCSE #setTheory #CSEducation #math #discreteMath #computerScience

So my research area in math is combinatorics, and my name is Drake...so how on earth did I not discover "Discrete Mathematics With Ducks" by sarah-marie belcastro until just now??! 🤔🦆

http://www.toroidalsnark.net/dmwd.html

I need that book.

#math #books #discretemath #combinatorics #ducks

Amikoj who like maths: I'm trying to find the name of a math operation. Please help if interested!

It's similar to "choose"
4 choose 2 = 6
because there are six ways to choose 2 things from four. Similarly,
5 choose 2 = 10
There are ten ways.

But what if the five things are in a circle and we don't (re)count as new instances the ones that look the same when rotated?
5 ___ 2 = 2 (I'm pretty sure)
The 2 items can be either 1 and 4 apart or 2 and 3 apart.
I'm looking for the underlined operation.

5 ___ 3 = 2
If the items are ABCDE, where E is connected to A, the two configurations are 1. ABC (three together), 2. ABD (two, skip one, one). In the case of 5 items ACD is equivalent to 2 because CDA is two, skip one, one.For my purposes they must be equivalent by rotation only, not by flipping.

6 ___ 3 = 4
ABCDEF has ABC, ABD, ABE, and ACE. All others should be equivalent if I counted correctly.

What is this operation called? 🙏

#maths #math #discretemath #permutation

searching for any structures / theory that involve a particular operation on non-empty lists of postitive integers like "the length of the list multiplied by the least common multiple of all the items in the list"

any ideas? references to any literature would be very appreciated if you know of any.

#askfedi #math #maths #mathematics #combinatorics #GroupTheory #DiscreteMath

I'm having a first glance at @BartoszMilewski 's #CategoryTheory for #Programmers

I teach a #DiscreteMath course which is for #CompSci students and also our Intro to Proofs. Assuming there is no room for adding non-elective courses or breaking that one in two, should I be introducing elements of Category Theory in this class?

In how many undergraduate curriculums in the US does it appear?

#Math #MathEducation

it is a bit "old school" but for news in the #orms, #optimization, and #discretemath world, there are mailing lists to follow:

OPTNET https://listserv.zib.de/mailman/listinfo/opt-net

DMANET https://www.zaik.uni-koeln.de/AFS/publications/dmanet/

ORNET https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=ornet

contains job announcements, conferences, etc.

Hello!

After a few days figuring out Mastodon with the help of the folks at QOTO, I will formally introduce myself in order to pin this in my profile :)

My name is Abde and I am a computer scientist. My main domain is #NumericalCalculus and #ParallelComputing. I am currently a PhD student at the Université Libre de Bruxelles (#belgium) and working on porting numerical solvers for simulations on the GPU using #CUDA. You may find my first paper here: https://etna.math.kent.edu/vol.55.2022/pp687-705.dir/pp687-705.pdf

Other research interests are #complexity #computability #graphtheory #geometry #discretemath

I also work as a #VirtualReality developer. My current professional interests are #simulations #numericalcalculus #geometry. We also contribute in several #opensource projects. Most of my work is done in #Unity3D, so feel free to ask any questions!

As a hobby I do some #gamedev and also #musicproduction. I will share some snippets of what I do here, but for now I am focusing in crafting my art by producing #housemusic in #bitwig.

Please enjoy! I am not the most active but I am looking to build my Mastodon network, so feel free to follow and I will follow back :)

#introduction #mastodon #newcomer #developer #music #programming