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Permutations, group theory, discrete calculus, integer sequences, combinatorial optimization...

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[WSG23] Daily Study Group: Introduction to Discrete Mathematics

CONTRIBUTED BY: Marc Vicuna | 2 years ago BY: Marc Vicuna
Discrete Mathematics , Education , Events & Media , ...
60
REPLIES
24.1K
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A prime pencil: truncatable primes

CONTRIBUTED BY: Roman Maeder | 6 years ago BY: Diego Ramos
Staff Picks , Computer-Based Maths , Discrete Mathematics , ...
20
REPLIES
34.8K
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Solving Sudoku as an integer programming problem

CONTRIBUTED BY: Frank Kampas | 3 years ago BY: Anton Antonov
Staff Picks , Discrete Mathematics , Game Development , ...
19
REPLIES
32K
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Toward a Foundation of Mathematics based on A New Kind of Science

CONTRIBUTED BY: José Manuel Rodríguez Caballero | 5 years ago BY: Richard Frost
Discrete Mathematics , Graphs and Networks , Mathematics , Physics , ...
15
REPLIES
9.3K
VIEWS

Formula for computing sqrt(2) of binary numbers

CONTRIBUTED BY: Mariusz Iwaniuk | 8 months ago BY: Maximilian Georgiev
Staff Picks , Discrete Mathematics , Equation Solving , Mathematics , ...
14
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41.1K
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See all halomethanes

CONTRIBUTED BY: Claudio Chaib | 7 years ago BY: Claudio Chaib
Staff Picks , Chemistry , Data Science , Discrete Mathematics , ...
13
REPLIES
14.5K
VIEWS

LinearProgramming approach for "best teams" algorithm

CONTRIBUTED BY: Anton Antonov | 9 years ago BY: Peter Parker
Staff Picks , Calculus , Discrete Mathematics , Equation Solving , ...
12
REPLIES
22.4K
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Alternating terms of two lists, as function.

CONTRIBUTED BY: Claudio Chaib | 7 years ago BY: Claudio Chaib
Discrete Mathematics , Mathematics , Operations Research , ...
11
REPLIES
10.4K
VIEWS

Solving Sudoku puzzles with Graph Theory

CONTRIBUTED BY: Alejandra Ortiz Duran | 2 years ago BY: Hongyang Cao
Staff Picks , Challenges , Computer-Based Maths , ...
10
REPLIES
31.7K
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Computational implementation of the German Enigma Machine

CONTRIBUTED BY: Ali Hashmi | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Computational Linguistics , Computer Science , ...
10
REPLIES
17.1K
VIEWS

Schmidt arrangements: Mobius transformation application

CONTRIBUTED BY: Christophe Favergeon | 5 years ago BY: Christophe Favergeon
Staff Picks , Algebra , Discrete Mathematics , ...
10
REPLIES
17.2K
VIEWS

[WSS25] Searching for holes in the proof space

CONTRIBUTED BY: Saúl Bernal González | 9 months ago BY: Saúl Bernal González
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
8
REPLIES
2.6K
VIEWS

Measuring 4x4 Reversi: Canonicalization & Impartiality Functions on Multiway Graphs

CONTRIBUTED BY: Andrea Li | 2 years ago BY: Brad Klee
Staff Picks , Computer Science , Discrete Mathematics , ...
8
REPLIES
8.6K
VIEWS

Numerically 2026 is unremarkable yet happy: semiprime with primitive roots

CONTRIBUTED BY: Anton Antonov | 2 months ago BY: Srinivasa Raghava
Staff Picks , Algebra , Discrete Mathematics , ...
7
REPLIES
4K
VIEWS

Shortest hamiltonian path

CONTRIBUTED BY: David Gathercole | 11 years ago BY: Daniel Lichtblau
Discrete Mathematics , Geometry , Graphs and Networks , ...
7
REPLIES
13.2K
VIEWS

Random Snowflake Generator Based on Cellular Automaton

CONTRIBUTED BY: Silvia Hao | 12 years ago BY: Richard Gaylord
Staff Picks , Discrete Mathematics , Mathematica , Modeling , ...
7
REPLIES
63.8K
VIEWS

Narayana Cow Triangle Fractal

CONTRIBUTED BY: Ed Pegg | 6 years ago BY: Yasmin Hussain
Staff Picks , Algebra , Discrete Mathematics , Geometry , ...
6
REPLIES
33.7K
VIEWS

Powers of 71, an explicit exercise in number theory

CONTRIBUTED BY: Luis Antonio Vasquez Reina | 7 years ago BY: William Isaacs
Staff Picks , Algebra , Discrete Mathematics , Mathematics , ...
6
REPLIES
14.9K
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Visualizing Euler's Number

CONTRIBUTED BY: Jesse Dohmann | 8 years ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
6
REPLIES
20.1K
VIEWS

Make e at home with rolling dice

CONTRIBUTED BY: Shenghui Yang | 2 years ago BY: Frederick Wu
Staff Picks , Calculus , Computer-Based Maths , ...
5
REPLIES
5.4K
VIEWS

4D polyhedra and their 3D cross-cections

CONTRIBUTED BY: Dugan Hammock | 3 years ago BY: Dugan Hammock
Staff Picks , Discrete Mathematics , Geometry , ...
5
REPLIES
9.3K
VIEWS

Rational bracings of regular polygons

CONTRIBUTED BY: Jeremy Tan | 5 years ago BY: Jeremy Tan
Staff Picks , Algebra , Computer-Based Maths , Discrete Mathematics , ...
5
REPLIES
8.8K
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The intriguing number 1/998001: exploration and visualization

CONTRIBUTED BY: Daniel Carvalho | 5 years ago BY: Daniel Carvalho
Staff Picks , Data Science , Discrete Mathematics , ...
5
REPLIES
12.6K
VIEWS

“Lucky fool” 2x2 matrix multiplication: finding all possible pairs with WL

CONTRIBUTED BY: Rauan Kaldybaev | 5 years ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Computer-Based Maths , Discrete Mathematics , ...
5
REPLIES
14.5K
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Understanding a CRUX problem: visualizing using LogLinearPlot

CONTRIBUTED BY: Shenghui Yang | 5 years ago BY: EDITORIAL BOARD
Staff Picks , Calculus , Computer-Based Maths , ...
5
REPLIES
10.8K
VIEWS

Advances in Squared Squares

CONTRIBUTED BY: Ed Pegg | 6 years ago BY: EDITORIAL BOARD
Staff Picks , Demonstrations , Discrete Mathematics , Geometry , ...
5
REPLIES
17.5K
VIEWS

[Numberphile] - Amazing Graphs III

CONTRIBUTED BY: Sander Huisman | 7 years ago BY: EDITORIAL BOARD
Staff Picks , Computer-Based Maths , Discrete Mathematics , ...
5
REPLIES
13.9K
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[Numberphile] - Amazing Graphs II

CONTRIBUTED BY: Sander Huisman | 7 years ago BY: Sander Huisman
Staff Picks , Compilation , Computer-Based Maths , ...
5
REPLIES
14.4K
VIEWS

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

CONTRIBUTED BY: Greg Hurst | 5 months ago BY: thunkii thunkies
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
4
REPLIES
4.5K
VIEWS

[WSS25] Investigating rule space geometry on multi-state cellular automata

CONTRIBUTED BY: Davi Vieira da Silva | 9 months ago BY: Daniel Carvalho
Staff Picks , Computational Systems , Computer Science , ...
4
REPLIES
2.1K
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[WSRP24] Adaptive evolution of 1D cellular automata to maximize blocks of the same color

CONTRIBUTED BY: Ahana Dalmia | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Biological Sciences , Computational Systems , ...
4
REPLIES
8.5K
VIEWS

Wolfram Language analysis of Reddit's sixty-second-button

CONTRIBUTED BY: David Gathercole | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Data Science , Discrete Mathematics , ...
4
REPLIES
31.1K
VIEWS

On Graph Products and Matrix Products

CONTRIBUTED BY: J. M. | 3 years ago BY: Nikolay Murzin
Staff Picks , Computer-Based Maths , Discrete Mathematics , ...
4
REPLIES
6.3K
VIEWS

A floor function equation M421 in CRUX

CONTRIBUTED BY: Shenghui Yang | 3 years ago BY: Emerson Alex Villafuerte Jara
Staff Picks , Computer-Based Maths , Discrete Mathematics , ...
4
REPLIES
11.1K
VIEWS

Factorials and how many zeroes are at the end

CONTRIBUTED BY: Peter Burbery | 3 years ago BY: Peter Burbery
Discrete Mathematics , Mathematics , Wolfram Language
4
REPLIES
8.1K
VIEWS

Casting Out 11s

CONTRIBUTED BY: Frank Kampas | 5 years ago BY: Jonathan Venezian
Discrete Mathematics , Mathematics , Symbolic Computations , ...
4
REPLIES
10.3K
VIEWS

A miracle Sudoku discovery - duplicate bridge

CONTRIBUTED BY: Ed Pegg | 5 years ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
4
REPLIES
18.5K
VIEWS

Linear secret-sharing: generalizing Shamir's scheme

CONTRIBUTED BY: José Manuel Rodríguez Caballero | 6 years ago BY: Arnoud Buzing
Staff Picks , Computer Science , Discrete Mathematics , Mathematics , ...
4
REPLIES
9.6K
VIEWS

[WSS19] Systematic Randomness Testing

CONTRIBUTED BY: Emmy Blumenthal | 7 years ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
4
REPLIES
16.1K
VIEWS

An algorithm on divisibility

CONTRIBUTED BY: Eloy Gonzalez | 7 years ago BY: Eloy Gonzalez
Algebra , Discrete Mathematics , Education , Mathematics , ...
4
REPLIES
6K
VIEWS

[GiF] Mandelzoom one-liner

CONTRIBUTED BY: Michael Sollami | 8 years ago BY: K aa
Staff Picks , Discrete Mathematics , Dynamic Interactivity , ...
4
REPLIES
19K
VIEWS

A New Solid of Constant Width

CONTRIBUTED BY: Ed Pegg | 10 years ago BY: Ed Pegg
Staff Picks , 3D Printing , Computer-Based Maths , ...
4
REPLIES
25.8K
VIEWS

Unit Distance Heawood Graph

CONTRIBUTED BY: Ed Pegg | 11 years ago BY: Ion Dodon
Discrete Mathematics , Geometry , Graphics and Visualization , ...
4
REPLIES
12.3K
VIEWS

How can I assign values to individual matrix locations?

CONTRIBUTED BY: Tommy Volk | 12 years ago BY: Daniel Lichtblau
Discrete Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
7.1K
VIEWS

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

CONTRIBUTED BY: Tigran Nersissian | 5 days ago BY: Tigran Nersissian
Staff Picks , Algebra , Computational Systems , ...
3
REPLIES
394
VIEWS

Hidden symmetry in permutation space

CONTRIBUTED BY: David Vasholz | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , ...
3
REPLIES
405
VIEWS

Trapped knight path with wavy color

CONTRIBUTED BY: Shenghui Yang | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Dynamic Interactivity , ...
3
REPLIES
4.3K
VIEWS

The AskConstants application for constant recognition

CONTRIBUTED BY: David Stoutemyer | 2 years ago BY: David Stoutemyer
Staff Picks , Calculus , Discrete Mathematics , ...
3
REPLIES
3.9K
VIEWS

Downgrading for dragon year Pi day

CONTRIBUTED BY: Brad Klee | 2 years ago BY: Brad Klee
Staff Picks , Computer Science , Discrete Mathematics , ...
3
REPLIES
4.9K
VIEWS

A smooth sequence of numbers like 799779977=17*19^6

CONTRIBUTED BY: Ed Pegg | 2 years ago BY: Denis Ivanov
Staff Picks , Discrete Mathematics , Mathematics , Wolfram Language
3
REPLIES
6.9K
VIEWS
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