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Staff Picks

Gravity train dynamics in a tunnel through the Earth

CONTRIBUTED BY: Akram Masoud | 18 hours ago BY: Ed Pegg
3
REPLIES
106
VIEWS

Temperature determination from concentration data for series reactions in a batch reactor

CONTRIBUTED BY: Housam Binous | 1 day ago BY: EDITORIAL BOARD
1
REPLIES
49
VIEWS

Neural net classifier for polynomial graph recognition and audio sine/triangle wave

CONTRIBUTED BY: Carlo Réan | 1 day ago BY: EDITORIAL BOARD
1
REPLIES
96
VIEWS
All Discussions

Inversing my function doesn't work and maybe simplification oddity

QUESTION FROM: Jérémy Bézairie | 3 years ago BY: Mariusz Iwaniuk
Algebra , Mathematics , Wolfram|Alpha , Wolfram Language
4
REPLIES
4.8K
VIEWS

How can I save a notebook and reload with same line numbers?

QUESTION FROM: Thomas Fowler | 3 years ago BY: Eric Rimbey
User Interface , Wolfram Language
3
REPLIES
3.7K
VIEWS

Creating a cloud menu of web links through an API

QUESTION FROM: Kay Herbert | 3 years ago
Operating System and Network Access , Wolfram Cloud , Wolfram Language
0
REPLIES
2.7K
VIEWS

Working through exercises in Donald Knuth's Art of Computer Programming

CONTRIBUTED BY: Peter Burbery | 3 years ago BY: Alan White
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
2
REPLIES
6.2K
VIEWS

How to connect from C++ app to Wolfram Engine using WSTP

QUESTION FROM: V F | 2 years ago BY: Alec Graves
External Programs and Systems , Software Development , ...
1
REPLIES
4.7K
VIEWS

Prolog in Plot3D should use 3D-coordinates

CONTRIBUTED BY: Werner Geiger | 3 years ago BY: Werner Geiger
Geometry , Graphics and Visualization , Wolfram Language
4
REPLIES
3.6K
VIEWS

Does Anyone Have Code to do Latin Hypercube Sampling?

QUESTION FROM: Frank Kampas | 3 years ago BY: Frank Kampas
Mathematics , Statistics and Probability , Wolfram Language
2
REPLIES
5.1K
VIEWS

How to evaluate a computation that requires a big amount of precision?

QUESTION FROM: Peter Burbery | 3 years ago BY: Peter Burbery
Discrete Mathematics , Mathematica , Mathematics , ...
4
REPLIES
3.1K
VIEWS

Course models: Disease Ecology & Evolution, Evolutionary Medicine

CONTRIBUTED BY: Gareth Russell | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Biological Sciences , Dynamic Interactivity , ...
5
REPLIES
8.5K
VIEWS

How to replace placeholder frame for picture in Textbook template?

QUESTION FROM: irek7 | 3 years ago BY: Larry Adelston
Graphics and Visualization , Mathematica , ...
3
REPLIES
6K
VIEWS

Convert the irrational expression of GAP to Wolfram language

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hongyi Zhao
External Programs and Systems , Wolfram Language
6
REPLIES
3K
VIEWS

Mathematica startup error: Cannot open shared object file

QUESTION FROM: Robert Enenkel | 3 years ago BY: Robert Enenkel
Mathematica , Operating System and Network Access
1
REPLIES
3.5K
VIEWS

How superimpose text on bitmap?

QUESTION FROM: Gary Palmer | 3 years ago BY: Gary Palmer
Graphics and Visualization , Image Processing , Wolfram Language
9
REPLIES
5.6K
VIEWS

Mapping an exponential function to a Polynomial

QUESTION FROM: Ian Billington | 3 years ago BY: Hans Milton
Algebra , Mathematics , Wolfram Language
7
REPLIES
3.9K
VIEWS

Initial conditions of PDE is being ignored?

QUESTION FROM: Bryan Foo | 3 years ago BY: xzczd 　
Calculus , Equation Solving , Graphics and Visualization , ...
9
REPLIES
6K
VIEWS

Multibrot sets visualization and area estimation

CONTRIBUTED BY: Shuheng Li | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Computer-Based Maths , ...
1
REPLIES
4.3K
VIEWS

Creating Conway's circle fails?

QUESTION FROM: serene H | 3 years ago BY: Rohit Namjoshi
Equation Solving , Geometry , Graphics and Visualization , ...
1
REPLIES
2.2K
VIEWS

Importing data from OpenOffice

QUESTION FROM: Carl Mesaros | 3 years ago BY: Carl Mesaros
Import and Export , Packages , Wolfram Language
2
REPLIES
2.9K
VIEWS

Finding the Derivative of an Interpolated Function

QUESTION FROM: Sinval Santos | 3 years ago BY: Sinval Santos
Calculus , Graphics and Visualization , Mathematics , Modeling , ...
5
REPLIES
4K
VIEWS

Unexpected behavior of CoefficientArrays

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hongyi Zhao
Algebra , Mathematics , Wolfram Language
4
REPLIES
3.4K
VIEWS

How to set the unit system to the SI by default

QUESTION FROM: Peter Burbery | 2 years ago BY: Juan Falgueras Cano
Presentation and Notebooks , Units , Wolfram Language
8
REPLIES
4.8K
VIEWS

Ring of ten rhombohedra

CONTRIBUTED BY: Sandor Kabai | 3 years ago
Computational Humanities , Geometry , Graphics and Visualization , ...
0
REPLIES
1.1K
VIEWS

Animating Wolfram surfaces with Blender: Hyperbolic & Mountain

CONTRIBUTED BY: Guenther Gsaller | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Curated Data , Dynamic Interactivity , ...
1
REPLIES
7.2K
VIEWS

Equity analysis: Entity Store

CONTRIBUTED BY: Jonathan Kinlay | 3 years ago BY: Jonathan Kinlay
Staff Picks , Curated Data , Dynamic Interactivity , Finance , ...
5
REPLIES
8.4K
VIEWS

About the results returned by SortBy and ReverseSortBy

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hongyi Zhao
Mathematica , Wolfram Language
2
REPLIES
2.9K
VIEWS

How to analyze obtained formulas for Heegner numbers?

QUESTION FROM: Alexander Povolotsky | 3 years ago BY: Jim Baldwin
Mathematics , Wolfram Language
1
REPLIES
4.7K
VIEWS

Specifying Pattern for Dataset argument

QUESTION FROM: Henrick Jeanty | 3 years ago BY: Henrick Jeanty
Data Science , Wolfram Language
2
REPLIES
3.6K
VIEWS

Wolfram Language Paclet Repository minimum version?

QUESTION FROM: Christopher Klausmeier | 3 years ago BY: Bob Sandheinrich
Authoring and Publishing , Mathematica , Packages , Wolfram Language
3
REPLIES
5K
VIEWS

Rubik's cube scramble generator

CONTRIBUTED BY: Sheldon Rego | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Graphics and Visualization , ...
1
REPLIES
8.1K
VIEWS

Suziki-Trotter decomposition: simulating Hamiltonian dynamics

CONTRIBUTED BY: Mohammad Bahrami | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Graphics and Visualization , Mathematica Add-Ons , ...
1
REPLIES
7.2K
VIEWS

Image distance between noisy and clean images

QUESTION FROM: Psi Meson | 2 years ago BY: Roland Franzius
Image Processing , Statistics and Probability , Wolfram Language
1
REPLIES
3.1K
VIEWS

ListPlot of Farey Sequence

QUESTION FROM: serene H | 3 years ago BY: serene H
Graphics and Visualization , Mathematics , Wolfram Language
5
REPLIES
3K
VIEWS

Compare NMinimze Options

CONTRIBUTED BY: Frank Kampas | 3 years ago
Graphics and Visualization , Optimization , Numerical Computation , ...
0
REPLIES
1.6K
VIEWS

A geometric exploration of music

CONTRIBUTED BY: Cael Harris | 3 years ago BY: Richard Frost
Staff Picks , Audio, Sound and Music , Graphics and Visualization , ...
4
REPLIES
6.5K
VIEWS

InstallR error: R.DLL version does not match

QUESTION FROM: Asad Kazmi | 3 years ago BY: Jim Baldwin
External Programs and Systems , Wolfram Language
1
REPLIES
4.1K
VIEWS

Does this sum converge?

QUESTION FROM: Alexander Povolotsky | 3 years ago BY: Daniel Lichtblau
Mathematics , Wolfram|Alpha , Wolfram|Alpha Apps
3
REPLIES
5K
VIEWS

The Evolute of a Parabola

CONTRIBUTED BY: Paul Abbott | 3 years ago
Algebra , Dynamic Interactivity , Education , Geometry , ...
0
REPLIES
1.9K
VIEWS

Three interwoven rings

CONTRIBUTED BY: Sandor Kabai | 3 years ago
Dynamic Interactivity , Geometry , Graphics and Visualization , ...
0
REPLIES
1.1K
VIEWS

Area of the Mandelbrot set

CONTRIBUTED BY: Paul Abbott | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Computer-Based Maths , ...
1
REPLIES
6.2K
VIEWS

Cannot enlarge vertices of graph

QUESTION FROM: Ziggy Stardust | 3 years ago BY: Ziggy Stardust
Data Science , Graphics and Visualization , Graphs and Networks , ...
13
REPLIES
6.2K
VIEWS

Classify & Predict: How to extract imputed data?

QUESTION FROM: Jürgen Kanz | 3 years ago BY: Jürgen Kanz
Data Science , Machine Learning , Wolfram Language
2
REPLIES
4.6K
VIEWS

How to use NMaximize With FindRoot

QUESTION FROM: K F | 3 years ago BY: Bill Nelson
Equation Solving , Optimization , Mathematics , ...
1
REPLIES
2.9K
VIEWS

How do I change a value in an association?

QUESTION FROM: Roger M Kolaks | 3 years ago BY: Roger M Kolaks
Data Science , Wolfram Language
2
REPLIES
2.6K
VIEWS

Great rhombicosidodecahedron demos

CONTRIBUTED BY: Sandor Kabai | 3 years ago BY: Sandor Kabai
Staff Picks , Geometry , Graphics and Visualization , Mathematica
2
REPLIES
4.1K
VIEWS

Plot legend data in ListStreamPlot

QUESTION FROM: Parvin Bayati | 3 years ago BY: Parvin Bayati
Data Science , Graphics and Visualization , Physics , Wolfram Language
2
REPLIES
2.2K
VIEWS

Simulating state-vectors and density matrices with QuESTlink

CONTRIBUTED BY: Tyson Jones | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Graphics and Visualization , ...
1
REPLIES
4.6K
VIEWS

Bass diffusion model

CONTRIBUTED BY: Sangdon Lee | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Calculus , Economics , Equation Solving , ...
1
REPLIES
5.9K
VIEWS

Enumeration in ONE text cell?

QUESTION FROM: Joachim Janezic | 3 years ago BY: Eric Rimbey
Presentation and Notebooks , User Interface , Wolfram Language
1
REPLIES
4K
VIEWS

How to solve a vector field ODE?

QUESTION FROM: Ser Man | 3 years ago BY: Peter Fleck
Equation Solving , Graphics and Visualization , Mathematica , ...
1
REPLIES
5.1K
VIEWS

Let ^ correctly call MatrixPower and Power

QUESTION FROM: Hongyi Zhao | 3 years ago
Algebra , Mathematics , Wolfram Language
0
REPLIES
1.5K
VIEWS

Diophantine equation with undetermined terms

CONTRIBUTED BY: Shenghui Yang | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Computer-Based Maths , Discrete Mathematics , ...
1
REPLIES
5.3K
VIEWS

Additional clutches increase build time exponentially

QUESTION FROM: Bogdan Udrea | 2 years ago BY: Bogdan Udrea
Modeling , SystemModeler , Tuning and Debugging
4
REPLIES
5K
VIEWS

How to connect with the WSMRealTimeSimulate?

QUESTION FROM: J Jesus Rico-Melgoza | 3 years ago BY: J Jesus Rico-Melgoza
Engineering , Graphics and Visualization , SystemModeler , ...
4
REPLIES
5.2K
VIEWS

Common faces of icosahedron and truncated cube

CONTRIBUTED BY: Sandor Kabai | 3 years ago
Dynamic Interactivity , Geometry , Graphics and Visualization , ...
0
REPLIES
1K
VIEWS

WebSocketJLink: connecting and working with web sockets

CONTRIBUTED BY: Kirill Belov | 3 years ago BY: Pedro Cabral
Staff Picks , Finance , Graphics and Visualization , ...
5
REPLIES
8.9K
VIEWS

Why leads a W|A Querry in notebooks to LinkObject error under Win 10?

QUESTION FROM: Werner Geiger | 3 years ago BY: Ahmed Elbanna
Mathematica , Wolfram|Alpha , Wolfram|Alpha Integration
2
REPLIES
5.4K
VIEWS

How to calculate and store values off each row of an array?

QUESTION FROM: Oliver Blombery | 3 years ago BY: Rohit Namjoshi
Wolfram Language
4
REPLIES
3.4K
VIEWS

Numerical solution by NDSolve has discontinuity

QUESTION FROM: A Afi | 2 years ago BY: Michael Rogers
Equation Solving , Graphics and Visualization , Mathematics , ...
2
REPLIES
2.8K
VIEWS

Game controller button to trigger action

QUESTION FROM: Mark Greenberg | 3 years ago BY: Eleazar Johannian
Connected Devices , Dynamic Interactivity , Game Development , ...
2
REPLIES
5.2K
VIEWS

No result from solving 9*9 matrix?

QUESTION FROM: Shivank Kumar | 3 years ago BY: Bill Nelson
Calculus , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
2.6K
VIEWS

Apply TranslationTransform on a matrix

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hongyi Zhao
Geometry , Mathematics , Wolfram Language
7
REPLIES
3.2K
VIEWS

The Wolfram Quantum Framework: a fast introduction

CONTRIBUTED BY: Mohammad Bahrami | 3 years ago BY: Dean Gladish
Staff Picks , Graphics and Visualization , Mathematica Add-Ons , ...
5
REPLIES
12.7K
VIEWS

Comparing the distributions of the lengths of adjectives and nouns

CONTRIBUTED BY: Peter Burbery | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Computational Linguistics , ...
1
REPLIES
4.6K
VIEWS

[BOOK] Control Theory for Physicists

CONTRIBUTED BY: John Bechhoefer | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Control Systems , Dynamic Interactivity , Education , ...
1
REPLIES
6.3K
VIEWS

Should the indexes also be defined as local variables in a custom function?

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hans Milton
Wolfram Language
8
REPLIES
2.8K
VIEWS

Failure trying to implement a basic function

QUESTION FROM: Jonathan Wooldridge | 3 years ago BY: Rohit Namjoshi
Wolfram Language
2
REPLIES
2.9K
VIEWS

Interwoven torus loops over polyhedra

CONTRIBUTED BY: Sandor Kabai | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Computational Humanities , Geometry , ...
1
REPLIES
3.8K
VIEWS

Currencies from January 1st to October 30th against USD

CONTRIBUTED BY: Ricardo MARTINEZ-LAGUNES | 3 years ago
Curated Data , Finance , Graphics and Visualization , Wolfram Language
0
REPLIES
2.2K
VIEWS

Group Theory Package (GTPack) and Symmetry Principles in Condensed Matter

CONTRIBUTED BY: Matthias Geilhufe | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Events & Media , Graphics and Visualization , ...
1
REPLIES
5.8K
VIEWS

Minimise error: Variable domain should be Reals or Integers?

QUESTION FROM: Oliver Blombery | 3 years ago BY: Oliver Blombery
Optimization , Mathematics , Wolfram Language
4
REPLIES
5.3K
VIEWS

NSolve gives nothing when solving an equation including erfc function?

QUESTION FROM: Daniel Niu | 3 years ago BY: Daniel Niu
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
3.4K
VIEWS

Play Two Files in a Sequence?

QUESTION FROM: Eleazar Johannian | 3 years ago BY: Eleazar Johannian
Audio, Sound and Music , Wolfram Language
2
REPLIES
4.2K
VIEWS

Mathematica update and local storage question

QUESTION FROM: Jay Gourley | 3 years ago BY: Jay Gourley
Mathematica , Product Set Up
2
REPLIES
5.1K
VIEWS

[GiF] Details in Rorschach mask animations making

CONTRIBUTED BY: Anton Antonov | 3 years ago BY: Anton Antonov
Staff Picks , Computational Humanities , Data Science , ...
3
REPLIES
8.3K
VIEWS

How to import csv from local computer on cloud basic plan?

QUESTION FROM: joro Amadoi | 3 years ago
Graphics and Visualization , Import and Export , Wolfram Cloud , ...
0
REPLIES
1.6K
VIEWS

Any experience with Mathematica under MacOS Ventura?

QUESTION FROM: John Shonder | 3 years ago BY: Anton Antonov
Mathematica , Operating System and Network Access , Product Set Up , ...
2
REPLIES
6.3K
VIEWS

Why ContourPlot3D does not work when solving the transient 3D heat equation

QUESTION FROM: agilicz | 3 years ago BY: agilicz
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
2.9K
VIEWS

How to formulate minimization problems with vector solution variables?

QUESTION FROM: Lars Ulke-Winter | 3 years ago BY: Henrik Schachner
Optimization , Mathematics , Wolfram Language
3
REPLIES
4.3K
VIEWS

Tooltips for toolbar palettes

QUESTION FROM: Joachim Janezic | 3 years ago
Mathematica , User Interface , Wolfram Language
0
REPLIES
2.4K
VIEWS

Is Wolfram considering implementing AMD's AOCL?

QUESTION FROM: Mujtaba Alam | 3 years ago
External Programs and Systems , High-Performance Computing , ...
0
REPLIES
1.6K
VIEWS

The error description in the document of NullSpace

QUESTION FROM: Hongyi Zhao | 3 years ago
Algebra , Mathematics , Wolfram Language
0
REPLIES
1.8K
VIEWS

Possible worlds and laws in Wolfram's theory?

QUESTION FROM: Nodu Agga | 3 years ago
Physics , Wolfram Fundamental Physics Project , Wolfram Science
0
REPLIES
3.6K
VIEWS

Changing the order of a list of matrices

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hongyi Zhao
Wolfram Language
1
REPLIES
1.6K
VIEWS

Probability that two correlated Normal random variables have the same sign?

QUESTION FROM: Greg Sternberg | 1 year ago BY: Gianluca Gorni
Mathematics , Statistics and Probability , Wolfram Language
6
REPLIES
6.2K
VIEWS

The Winning Move for Cutting Corners

CONTRIBUTED BY: Jindřich Michalik | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Game Development , Graphics and Visualization , ...
1
REPLIES
3.6K
VIEWS

How to Solve two equations simultaneously?

QUESTION FROM: jason nguyen | 3 years ago BY: Rohit Namjoshi
Algebra , Equation Solving , Mathematics , Wolfram Language
10
REPLIES
3.2K
VIEWS

Mass-spring-damper, Romeo-Juliet, & Marital interaction models

CONTRIBUTED BY: Sangdon Lee | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Biological Sciences , Calculus , ...
1
REPLIES
5.7K
VIEWS

Unexpected result from Limit of real and imaginary valued function

QUESTION FROM: Leslaw Bieniasz | 3 years ago
Calculus , Mathematics , Wolfram Language
0
REPLIES
2K
VIEWS

Engine + Docker + Debian + OMV : no write permission to bind mount?

QUESTION FROM: Christopher Arthur | 3 years ago BY: Christopher Arthur
Tuning and Debugging , Wolfram Engine , Wolfram Language
2
REPLIES
4.3K
VIEWS

Pentagonal art template and cluster of 12 rhombic triacontahedra

CONTRIBUTED BY: Sandor Kabai | 2 years ago BY: Sandor Kabai
Staff Picks , Computational Humanities , Geometry , ...
3
REPLIES
4.4K
VIEWS

Study on the average speed of particles from a particle swarm

CONTRIBUTED BY: Tao Guo | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Graphics and Visualization , Mathematics , ...
1
REPLIES
5.4K
VIEWS

Results of the contest "Best Private Investor" from MOEX

CONTRIBUTED BY: Kirill Belov | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Challenges , Data Science , Events & Media , Finance , ...
1
REPLIES
5.5K
VIEWS

Convert Strings to Subscript?

QUESTION FROM: Sinval Santos | 3 years ago BY: Sinval Santos
Mathematics , Wolfram Language
2
REPLIES
2.3K
VIEWS

How do I use the difference root in Wolfram|Alpha?

QUESTION FROM: Oluwamide Agunloye | 3 years ago BY: Updating Name
Equation Solving , Mathematics , Symbolic Computations , ...
2
REPLIES
3.7K
VIEWS

The angular speed distribution of randomly moving-particle group

CONTRIBUTED BY: Tao Guo | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Calculus , Graphics and Visualization , Mathematics , ...
1
REPLIES
4.7K
VIEWS

What's the difference between Wolfram Mathematica and Wolfram One?

QUESTION FROM: Paul Zolotarevskiy | 3 years ago BY: Murray Eisenberg
Mathematica , webMathematica , Wolfram Language
2
REPLIES
10.5K
VIEWS

Distance of lines in image: works but slow

QUESTION FROM: Maximilian Ulbrich | 3 years ago BY: Maximilian Ulbrich
Graphics and Visualization , Image Processing , ...
3
REPLIES
4K
VIEWS

Custom percentile LossFunction?

QUESTION FROM: Gijsbert Wiesenekker | 3 years ago
Data Science , Neural Networks , Wolfram Language
0
REPLIES
2.4K
VIEWS

System dynamics and Hooke’s law

CONTRIBUTED BY: Ricardo MARTINEZ-LAGUNES | 3 years ago BY: EDITORIAL BOARD
Staff Picks , Dynamic Interactivity , Finance , ...
1
REPLIES
4.9K
VIEWS

Extracting a list from each nxn matrix from a set of matrices

QUESTION FROM: Nomsa Ledwaba | 3 years ago BY: Eric Rimbey
Algebra , Mathematics , Wolfram Language
5
REPLIES
3.7K
VIEWS
49
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51
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