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

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Self-generating Oldenburger-Kolakoski sequence

QUESTION FROM: Ed Pegg | 6 years ago BY: Vitaliy Kaurov
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
5
REPLIES
19.2K
VIEWS

Visualization of happy and sad numbers

QUESTION FROM: Anonymous User | 10 years ago BY: Anonymous User
Discrete Mathematics , Graphics and Visualization , ...
11
REPLIES
10.7K
VIEWS

How lack of iterators limits the usefulness of combinatorial enumeration

QUESTION FROM: Szabolcs Horvát | 7 years ago BY: Sander Huisman
Discrete Mathematics , Mathematics , Wolfram Language
2
REPLIES
11.2K
VIEWS

Sort pairs that add up to a perfect square?

QUESTION FROM: Ashley Louk | 10 years ago BY: Sander Huisman
Discrete Mathematics , Mathematics , Symbolic Computations , ...
17
REPLIES
13.7K
VIEWS

[?] Ratios in expanded Fibonacci series?

QUESTION FROM: Mark Good | 9 years ago BY: Mark Good
Discrete Mathematics , Mathematics , Wolfram Language
9
REPLIES
8.8K
VIEWS

Find the "nth" of a large PrimeNumber?

QUESTION FROM: Nural I. | 8 years ago BY: Ilian Gachevski
Discrete Mathematics , Mathematica , Mathematics , Wolfram|Alpha , ...
14
REPLIES
16.1K
VIEWS

Smoothing an irregular TimeSeries and calculate it's Derivative

QUESTION FROM: Gianluigi Salvi | 6 years ago BY: Jim Baldwin
Discrete Mathematics , Finance , Signal Processing , Wolfram Language
10
REPLIES
11.9K
VIEWS

Generate sound from plot curves?

QUESTION FROM: Greg Keogh | 7 years ago BY: Jos Klaps
Audio, Sound and Music , Discrete Mathematics , Education , ...
7
REPLIES
17.8K
VIEWS

Estimate/predict a discrete value in a dependent variables list?

QUESTION FROM: M.A. Ghorbani | 8 years ago BY: Mariusz Iwaniuk
Discrete Mathematics , Mathematics , Wolfram Language
10
REPLIES
7K
VIEWS

Self-referential recurrence

QUESTION FROM: Paul Abbott | 11 months ago BY: Daniel Lichtblau
Discrete Mathematics , Mathematics
8
REPLIES
2.8K
VIEWS

How create function for Fibonacci series?

QUESTION FROM: Camilo Pacheco | 11 years ago BY: Henrik Schachner
Calculus , Discrete Mathematics , Mathematica , Wolfram Language
4
REPLIES
15.9K
VIEWS

How to build a regular grammar for a regular language?

QUESTION FROM: Alex D | 12 years ago BY: Alex D
Computer Science , Discrete Mathematics
4
REPLIES
12.6K
VIEWS

The inverse of moving from a map to a network topology

QUESTION FROM: Seth Chandler | 8 years ago BY: Szabolcs Horvát
Discrete Mathematics , Geographic Information System , ...
6
REPLIES
9.2K
VIEWS

Find numbers with the same cross sum (sum of digits)?

QUESTION FROM: Nural I. | 8 years ago BY: Nural I.
Discrete Mathematics , Mathematics , Wolfram|Alpha , Wolfram Language
7
REPLIES
9.4K
VIEWS

Code & exploration of Minimal Superpermutation problem

QUESTION FROM: Vitaliy Kaurov | 11 years ago BY: Vitaliy Kaurov
Discrete Mathematics , Graphs and Networks , Mathematics , ...
2
REPLIES
6.8K
VIEWS

Unable to Find Sequence Continuation or Formula

QUESTION FROM: H K | 12 years ago BY: Marco Thiel
Discrete Mathematics , Mathematics
4
REPLIES
6.9K
VIEWS

Fastest way to generate prime numbers

QUESTION FROM: Szabolcs Horvát | 12 years ago BY: Daniel Lichtblau
Discrete Mathematics , Mathematica
5
REPLIES
7.4K
VIEWS

A replacement for IntegerDigits: computing Sloane OEIS A229024 sequence

QUESTION FROM: Hans Havermann | 13 years ago BY: Hans Havermann
Discrete Mathematics , Mathematica , Mathematics , Recreation , ...
8
REPLIES
20K
VIEWS

Solve for best teams?

QUESTION FROM: Peter Parker | 9 years ago BY: EDITORIAL BOARD
Calculus , Computational Systems , Discrete Mathematics , ...
14
REPLIES
15.4K
VIEWS

Is there a way to implement

QUESTION FROM: König Lufu Der Zehnte | 12 years ago BY: König Lufu Der Zehnte
Discrete Mathematics , Mathematica
4
REPLIES
4.7K
VIEWS

How to specify incremental constraint in LongestOrderedSequence?

QUESTION FROM: Richard Frost | 2 years ago BY: Michael Rogers
Discrete Mathematics , Mathematics , Signal Processing , ...
10
REPLIES
3.2K
VIEWS

Get symbolic expressions for summing sequences?

QUESTION FROM: Thanos Papas | 7 years ago BY: Hans Dolhaine
Discrete Mathematics , Equation Solving , Mathematics , ...
12
REPLIES
10.1K
VIEWS

Compute 2D Discrete Hilbert Transform?

QUESTION FROM: Max Sakharov | 9 years ago BY: Max Sakharov
Calculus , Discrete Mathematics , Image Processing , Mathematics , ...
2
REPLIES
12.2K
VIEWS

Strong Graph product between two C_5 graphs?

QUESTION FROM: Alessio Lapolla | 10 years ago BY: Greg Hurst
Discrete Mathematics , Graphs and Networks , Mathematics , Packages , ...
4
REPLIES
9K
VIEWS

Find natural numbers>0 divisible by 37 using FindInstance?

QUESTION FROM: Werner Geiger | 10 years ago BY: Werner Geiger
Discrete Mathematics , Mathematics , Wolfram Language , ...
13
REPLIES
9.5K
VIEWS

Elementary CA models from a different method ?

QUESTION FROM: Tylor Firestone | 11 years ago BY: Tylor Firestone
Algebra , Computational Systems , Computer Science , ...
3
REPLIES
14.3K
VIEWS

Can we select from a list by position and value?

QUESTION FROM: Paul Cleary | 11 years ago BY: Paul Cleary
Data Science , Discrete Mathematics , Mathematica , Optimization , ...
3
REPLIES
8.2K
VIEWS

List-threading operations with logicals

QUESTION FROM: Jim Simons | 12 years ago BY: Marco Thiel
Discrete Mathematics , Mathematica , Wolfram Language
6
REPLIES
4.5K
VIEWS

Graphs with weight in 2D and 3D

QUESTION FROM: Luc Barthelet | 14 years ago BY: Luc Barthelet
Discrete Mathematics , Graphs and Networks , Mathematica
3
REPLIES
8.7K
VIEWS

Compiled function uses too much memory

QUESTION FROM: Ulrich Utiger | 2 years ago BY: Victor Kryukov
Compilation , Discrete Mathematics , High-Performance Computing , ...
12
REPLIES
13.2K
VIEWS

Does a Multisets[] function exist?

QUESTION FROM: Raspi Rascal | 6 years ago BY: Richard Frost
Algebra , Discrete Mathematics , Statistics and Probability , ...
6
REPLIES
9.6K
VIEWS

Revisit IMO 2009 Short List N2

QUESTION FROM: Shenghui Yang | 6 years ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Mathematics , Wolfram Cloud , ...
1
REPLIES
10K
VIEWS

[WSC19] Visualizing Fourier Synthesis

QUESTION FROM: Mukilan Karthikeyan | 7 years ago BY: Mukilan Karthikeyan
Calculus , Discrete Mathematics , Graphics and Visualization , ...
7
REPLIES
26.8K
VIEWS

[?] Generate all sequences of n integer that range from 1 to n?

QUESTION FROM: Clément Justin | 9 years ago BY: Henrik Schachner
Algebra , Discrete Mathematics , Mathematics , Wolfram Language
8
REPLIES
9.3K
VIEWS

Method to generate k random partitions without Reap/Sow?

QUESTION FROM: David G | 13 years ago BY: William Rummler
Discrete Mathematics , Wolfram Language
2
REPLIES
7.5K
VIEWS

Is a number would be part of a series generated by LinearRecurrence?

QUESTION FROM: Paul Cleary | 5 years ago BY: Paul Cleary
Discrete Mathematics , Mathematics , Wolfram Language
4
REPLIES
7.2K
VIEWS

[WWS21] The Multiway Systems of Dynkin Diagrams

QUESTION FROM: Sam Willis | 5 years ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , Graphs and Networks , ...
2
REPLIES
8.8K
VIEWS

Convert a piecewise integer function into usable form such as a List?

QUESTION FROM: Douglas Kubler | 6 years ago BY: Douglas Kubler
Discrete Mathematics , Mathematics , Numerical Computation , ...
4
REPLIES
6.9K
VIEWS

Chromatic polynomials for custom graphs

QUESTION FROM: Reinaldo Giudici | 9 years ago BY: Allan Zea
Discrete Mathematics , Graphs and Networks , Mathematica , ...
19
REPLIES
25.9K
VIEWS

Illustration of fourier series for prime number counting functions

QUESTION FROM: Steven Clark | 10 years ago BY: Steven Clark
Calculus , Discrete Mathematics , Graphics and Visualization , ...
8
REPLIES
15.3K
VIEWS

Computing 0^0 mod 7 with Mod and PowerMod

QUESTION FROM: RorriNator 7 | 11 years ago BY: Sander Huisman
Discrete Mathematics , Mathematica , Mathematics
3
REPLIES
8.3K
VIEWS

How to compute the triangles of a graph via pattern matching?

QUESTION FROM: Jaime Rangel-Mondragon | 11 years ago BY: Dana DeLouis
Computer-Based Maths , Computer Science , Discrete Mathematics , ...
2
REPLIES
11.8K
VIEWS

How to create this list?

QUESTION FROM: Diogo Duarte | 11 years ago BY: Marco Thiel
Discrete Mathematics , Mathematica , Wolfram Language
5
REPLIES
6.7K
VIEWS

Mortal Fibonacci Rabbits - Odd Answers for High Numbers

QUESTION FROM: Michael Senter | 13 years ago BY: Sander Huisman
Demonstrations , Discrete Mathematics , Mathematica
1
REPLIES
11.8K
VIEWS

Porosity calculation of complex three-dimensional model

QUESTION FROM: 扬 崔 | 0 months ago BY: 扬 崔
3D Printing , Discrete Mathematics , Geometry , ...
4
REPLIES
2.2K
VIEWS

Make code faster and in C-compatible manner?

QUESTION FROM: Ulrich Utiger | 2 years ago BY: Daniel Lichtblau
Compilation , Discrete Mathematics , High-Performance Computing , ...
7
REPLIES
12K
VIEWS

Visualizing diagrams needed to compute $\langle \operatorname{Tr}(A^3 (A^T)^3)\rangle$

QUESTION FROM: Yaroslav Bulatov | 2 years ago BY: Gianluca Gorni
Discrete Mathematics , Graphics and Visualization , ...
3
REPLIES
3.9K
VIEWS

Custom multiplication operation between variables

QUESTION FROM: David L | 5 years ago BY: Updating Name
Algebra , Discrete Mathematics , Mathematics , Wolfram Language
4
REPLIES
5.8K
VIEWS

Printing outputs for Collatz conjecture?

QUESTION FROM: Jonathan Bell | 5 years ago BY: Jonathan Bell
Algebra , Discrete Mathematics , Mathematics , Numerical Computation
6
REPLIES
8.2K
VIEWS

[?] Plot tensor networks diagrams?

QUESTION FROM: Raghav Jha | 7 years ago BY: Raghav Jha
Discrete Mathematics , Graphics and Visualization , ...
2
REPLIES
6.9K
VIEWS
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