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Rule 30 exact binomial-Lucas lifting: boolean logic to integer coefficients, Stirling & support sets

CONTRIBUTED BY: Tigran Nersissian | 4 hours ago BY: Tigran Nersissian
Staff Picks , Algebra , Computational Systems , ...
3
REPLIES
357
VIEWS

First ever position index formula

CONTRIBUTED BY: Luis Felipe Massena Misiec | 8 hours ago BY: Luis Felipe Massena Misiec
Discrete Mathematics , Graphics and Visualization , Mathematics , ...
2
REPLIES
192
VIEWS

Hidden symmetry in permutation space

CONTRIBUTED BY: David Vasholz | 1 month ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , ...
3
REPLIES
381
VIEWS

From integers to art: fractal geometry of digit-sum parities

CONTRIBUTED BY: Sergio Quiroga | 1 month ago BY: Sergio Quiroga
Staff Picks , Discrete Mathematics , Geometry , ...
2
REPLIES
423
VIEWS

Numerically 2026 is unremarkable yet happy: semiprime with primitive roots

CONTRIBUTED BY: Anton Antonov | 1 month ago BY: Srinivasa Raghava
Staff Picks , Algebra , Discrete Mathematics , ...
7
REPLIES
3.8K
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Extended Rule-110 family via ANF over GF(2): prior art and validation of a factor onto Rule 110

QUESTION FROM: Tigran Nersissian | 1 month ago
Algebra , Computational Systems , Discrete Mathematics , ...
0
REPLIES
221
VIEWS

MGroups package: teaching finite group theory

CONTRIBUTED BY: Naman T. | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , Education , ...
1
REPLIES
474
VIEWS

How to solve tectonic puzzles using graph theory

CONTRIBUTED BY: Alejandra Ortiz Duran | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Computer Science , Discrete Mathematics , ...
2
REPLIES
979
VIEWS

Patchwork with coexisting cellular automata

CONTRIBUTED BY: Phileas Dazeley-Gaist | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Computational Systems , Discrete Mathematics , ...
1
REPLIES
513
VIEWS

Companion to "Base Fibonacci - Numberphile"

CONTRIBUTED BY: Shenghui Yang | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , ...
1
REPLIES
580
VIEWS

Visual explanation of the problem Putnam 2025 A3

CONTRIBUTED BY: Shenghui Yang | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Game Development , ...
1
REPLIES
1.2K
VIEWS

Maze making using graphs based on rectangular and hexagonal grids

CONTRIBUTED BY: Anton Antonov | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Challenges , Computational Humanities , ...
1
REPLIES
967
VIEWS

Introduction to dynamic economic models: the ISLM model with the capital stock and debt

CONTRIBUTED BY: Hee-Young Shin | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , ...
1
REPLIES
663
VIEWS

Introduction to dynamic economic models: The ISLM model

CONTRIBUTED BY: Hee-Young Shin | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Calculus , Discrete Mathematics , Economics , ...
1
REPLIES
910
VIEWS

Introduction to dynamic economic models: Keynes's AD model with the capital stock and the debt

CONTRIBUTED BY: Hee-Young Shin | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Calculus , Discrete Mathematics , Economics , ...
1
REPLIES
613
VIEWS

[Polihacks] The sons of Bill Gates: lognormal simulation cellular model

CONTRIBUTED BY: Adael Reyes | 4 months ago
Computational Systems , Discrete Mathematics , Mathematics , ...
0
REPLIES
558
VIEWS

Extending Matt Parker's List: 4 Primes p where tan(p) > p

CONTRIBUTED BY: Greg Hurst | 4 months ago BY: thunkii thunkies
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
4
REPLIES
4.4K
VIEWS

Random minimum spanning trees and Riemann Zeta function

CONTRIBUTED BY: Shenghui Yang | 4 months ago BY: EDITORIAL BOARD
Staff Picks , Curated Data , Discrete Mathematics , ...
1
REPLIES
1K
VIEWS

Verifying origin/meaning of rule 54 formula on MathWorld

QUESTION FROM: Rudi Bjørnsen Stranden | 5 months ago
Computational Systems , Discrete Mathematics , Wolfram Science
0
REPLIES
553
VIEWS

Recamán's sequence, semi circles and spooky sound

CONTRIBUTED BY: Shenghui Yang | 5 months ago BY: Vitaliy Kaurov
Staff Picks , Audio, Sound and Music , Discrete Mathematics , ...
2
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1.2K
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