Lmst

Ed Leamer (1944-2025)

https://larspsyll.wordpress.com/2025/12/03/ed-leamer-1944-2025/

Hello,
Here is a new hectoc challenge for you:

448712

The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".

Have fun! Your hourly hectoc bot
by @seism0saurus

#math #mentalcalculator #hectoc

Hi @derickr

That is a correct solution.

#math #mentalcalculator #hectoc

Hi!
Here is a new hectoc challenge for you:

457914

The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".

Have fun! Your hourly hectoc bot
by @seism0saurus

#math #mentalcalculator #hectoc

Advent of Tilings - Day 5.2

The twist as seen in the stretched unfolding into the hyperbolic plane.

#math #geometry #3d #tiling #AdventOfTilings

Advent of Tilings - Day 5.1

This two periodic hexagonal tiling is a bit more twisted than the one from yesterday. Can you spot the difference between the rules?

t₂⁴ and (f₁f₂)²

Still embeddable in euclidian space and monohedral though.

#math #geometry #3d #tiling #AdventOfTilings

I have uploaded the slides for all the talks I have given at Lossfunk so far:

1) Building a scientific agent using system dynamics simulation

2) Agent2Agent collaboration Protocol

3) Differentiable Programming

4) My solution for Distributed Reactivity

https://nilesh.trivedi.link/thoughts

Would love to hear from others exploring these and similar threads.

#programming #AI #math

⏳ Mixed‑arithmetic puzzles that make time enjoyable 🧠 Improve accuracy, focus, and mental speed. Search Amazon for “Grace Hartford Math” to keep your mind engaged. #MathWorkbook #MindGym #StaySharp #BrainTraining #Math #Puzzles #MathPractice #MathSkills

Hi @MOULE

That is a correct solution.

#math #mentalcalculator #hectoc

Greetings fellow humans,
The hectoc of the hour is:

827171

The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".

Have fun! Your hourly hectoc bot
by @seism0saurus

#math #mentalcalculator #hectoc

Continued Fractions and Continuants https://janmr.com/posts/continued-fractions-and-continuants/ #math #computerscience #algoritms #continuedfractions

Thoughts and pluralities of worlds: A paradox

https://alexanderpruss.blogspot.com/2025/12/thoughts-and-pluralities-of-worlds.html

#math #mathematics

Here's the question for December 5th from the AMS Daily Epsilon of Math Calendar
@DailyEpsilon

#math #maths #mathematics #mathstodon

5 décembre 1863 : #CeJourLà naissance de Paul Painlevé (†29/10/1933), mathématicien et homme politique français, dont les travaux portent essentiellement sur les équations différentielles.
https://fr.wikipedia.org/wiki/Paul_Painlev%C3%A9
#mathématiques #maths #math

Greetings fellow humans,
The hectoc of the hour is:

986614

The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".

Have fun! Your hourly hectoc bot
by @seism0saurus

#math #mentalcalculator #hectoc

📰 "The Basic Reproduction Number for Petri Net Models: A Next-Generation Matrix Approach"
https://arxiv.org/abs/2507.02344 #Dynamics #Q-Bio.Qm #Math.At #Matrix

Hello math fans,
A new hectoc for you:

964334

The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".

Have fun! Your hourly hectoc bot
by @seism0saurus

#math #mentalcalculator #hectoc

A052383: Numbers without 1 as a digit

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A052383.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A052383.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A052383.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research

Decomposition into weight × level + jump of A052383 in 3D (threejs - WebGL) (log(weight), log(level), log(jump))

Decomposition into weight × level + jump of A052383 in 2D (log(weight), log(level))

We see the fundamental theorem of arithmetic and the sieve of Eratosthenes in the decomposition into weight × level + jump of natural numbers. Applied to prime numbers this decomposition leads to a new classification of primes.

#decompwlj #math #mathematics #maths #sequence #OEIS #graph #natural #numbers #primes #PrimeNumbers #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research