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Staff Picks

An application for portfolio optimization, risk sensitivity and efficient frontier visualization

CONTRIBUTED BY: Charalampos - Marios Pelekoudas | 2 hours ago BY: EDITORIAL BOARD
1
REPLIES
19
VIEWS

[WWS25] Exploring ruliological engineering of well-defined geometries from hypergraph rewriting

CONTRIBUTED BY: Jacopo Uggeri | 5 hours ago BY: Ellynne DEC
2
REPLIES
1.3K
VIEWS

[WSS23] The Ruliology of Network Mobile Automata

CONTRIBUTED BY: Joel Choi | 5 hours ago BY: Ellynne DEC
2
REPLIES
4K
VIEWS
All Discussions

COVID-19 policy simulator: can you find the perfect policy?

CONTRIBUTED BY: Jan Brugard | 5 years ago BY: Syd Geraghty
Staff Picks , Biological Sciences , Data Science , ...
8
REPLIES
21.3K
VIEWS

Why Wolfram|Alpha gives the right result?

QUESTION FROM: Luis Felipe Massena Misiec | 5 years ago BY: Luis Felipe Massena Misiec
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
8
REPLIES
7.5K
VIEWS

[WSC17] Image Rotation Correction through a Neural Network

CONTRIBUTED BY: Pierce Forte | 5 years ago BY: shi zhigao
Staff Picks , Artificial Intelligence , Computer Science , ...
8
REPLIES
19.4K
VIEWS

Help!! I can't find the error in this program? (InverseFunction)

QUESTION FROM: Lina Lili | 5 years ago BY: Rohit Namjoshi
Control Systems , Equation Solving , Wavelets and Fourier Series , ...
8
REPLIES
8K
VIEWS

I need to plot this function please!!

QUESTION FROM: Lina Lili | 5 years ago BY: Henrik Schachner
Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
8.4K
VIEWS

Mathematica taking forever to solve a system of 3 non-linear equations.

QUESTION FROM: Neerav Kaushal | 5 years ago BY: Neerav Kaushal
Equation Solving , Mathematica , Symbolic Computations
8
REPLIES
7.7K
VIEWS

'SystemModelSimulate' as part of Wolfram Desktop Version-12 gives error!

QUESTION FROM: Vijay Sharma | 5 years ago BY: Otto Tronarp
External Programs and Systems , Modeling , ...
8
REPLIES
13.8K
VIEWS

A doubt about SubsetCases

QUESTION FROM: Francisco Gutierrez | 5 years ago BY: Pasquale Caterino
Mathematics , Wolfram Language
8
REPLIES
7.2K
VIEWS

Manipulate an array calculated outside Manipulate?

QUESTION FROM: Werner Geiger | 5 years ago BY: Mike Besso
Dynamic Interactivity , Graphics and Visualization , ...
8
REPLIES
8.6K
VIEWS

Calculate Shapley Values using TuGames package?

QUESTION FROM: rodrigo montes | 5 years ago BY: Holger Ingmar Meinhardt
Economics , Mathematica , Operating System and Network Access , ...
8
REPLIES
16.5K
VIEWS

Wierd output when working with Module function

QUESTION FROM: Ehud Behar | 5 years ago BY: Yehuda Ben-Shimol
Graphics and Visualization , Mathematica
8
REPLIES
11.6K
VIEWS

Define a function to plot a geodesic arc between 2 points on a unit sphere

QUESTION FROM: Les Wigdor | 5 years ago BY: Hans Milton
Geographic Information System , Geometry , Mathematics , ...
8
REPLIES
6.8K
VIEWS

PDF of a Transformed discrete distribution

QUESTION FROM: Naouar El Khadiri | 5 years ago BY: Jim Baldwin
Mathematics , Statistics and Probability , Wolfram Language
8
REPLIES
8.1K
VIEWS

Simplify expression to minimize number of multiplications

QUESTION FROM: Zak Frentz | 5 years ago BY: Daniel Lichtblau
Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
6.1K
VIEWS

[?] Solve the Kronig Penney model determinant?

QUESTION FROM: John Tiessen | 5 years ago BY: Dan Lawrence
Equation Solving , Mathematics , Physics , Symbolic Computations , ...
8
REPLIES
14.8K
VIEWS

WSTP: Handling lists

QUESTION FROM: jerome ibanes | 5 years ago BY: Szabolcs Horvát
External Programs and Systems , Mathematica , Software Development , ...
8
REPLIES
8.4K
VIEWS

How to get the result of a multiplication between a matrix and a vector?

QUESTION FROM: Alberto de la Torre | 5 years ago BY: Christopher Young
Algebra , Control Systems , Engineering , Mathematica , Mathematics , ...
8
REPLIES
85.6K
VIEWS

Setting derivative boundary conditions in NDSolve

QUESTION FROM: Peter Bischet | 5 years ago BY: Wang JhONG
Mathematics , Mechanical Engineering
8
REPLIES
37K
VIEWS

Chaos bifurcation of double pendulums calculation with OOP

CONTRIBUTED BY: Hirokazu Kobayashi | 5 years ago BY: EDITORIAL BOARD
Staff Picks , Computer Science , Dynamic Interactivity , ...
8
REPLIES
19.4K
VIEWS

Harmonize Plot and Units in a simple way?

QUESTION FROM: Anderson Coser Gaudio | 5 years ago BY: Anderson Coser Gaudio
Graphics and Visualization , Units , Wolfram Language
8
REPLIES
9.8K
VIEWS

[?] Generate a random connected graph?

QUESTION FROM: Licheng Zhang | 5 years ago BY: Szabolcs Horvát
Graphs and Networks , Mathematics , Wolfram Language
8
REPLIES
15.3K
VIEWS

Understanding function evaluation ...

QUESTION FROM: Henrik Schachner | 5 years ago BY: Henrik Schachner
Mathematica , Wolfram Language
8
REPLIES
9.8K
VIEWS

Phase unwrapping

CONTRIBUTED BY: Sander Huisman | 5 years ago BY: Nicolas Molano
Staff Picks , Control Systems , Data Science , ...
8
REPLIES
26.9K
VIEWS

Plot with filling and how to get the tooltip on the filling?

QUESTION FROM: Luc Barthelet | 5 years ago BY: Henrik Schachner
Graphics and Visualization , Wolfram Language
8
REPLIES
5.9K
VIEWS

Replace the "arrows" (rules) for equal signs "="?

QUESTION FROM: jasvesta | 5 years ago BY: jasvesta
Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
6K
VIEWS

[?] Fit a cubic spline to the centerline data points?

QUESTION FROM: Natash A | 5 years ago BY: Henrik Schachner
Data Science , Image Processing , Import and Export , Wolfram Language
8
REPLIES
8K
VIEWS

Simplify sum expression containing Kronecker delta?

QUESTION FROM: Michael Helmle | 6 years ago BY: Michael Helmle
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
6.5K
VIEWS

Get the inverse Laplace transform of an equation?

QUESTION FROM: Lucas G | 6 years ago BY: Lucas G
Calculus , Equation Solving , Graphics and Visualization , ...
8
REPLIES
8K
VIEWS

Import the current date and time into a CDF?

QUESTION FROM: Gregory Lypny | 6 years ago BY: Gregory Lypny
Computable Document Format , Curated Data , Data Science , ...
8
REPLIES
10.9K
VIEWS

How do you plot a phase diagram for {y',z'} = {{z},{y*(1-y^2)}}?

QUESTION FROM: aaron curley | 6 years ago BY: Arnoud Buzing
Mathematics
8
REPLIES
9.2K
VIEWS

Get real names and locations of weather stations?

QUESTION FROM: M.A. Ghorbani | 6 years ago BY: Rohit Namjoshi
Curated Data , Data Science , Geographic Information System , ...
8
REPLIES
6.9K
VIEWS

Use ExcelLink 3.7.1 with Mathematica 12.0 ?

QUESTION FROM: Massimo Salese | 6 years ago BY: Massimo Salese
External Programs and Systems , Mathematica , Packages
8
REPLIES
15.2K
VIEWS

Calculate this series expansion with Bessel functions?

QUESTION FROM: Leslaw Bieniasz | 6 years ago BY: Leslaw Bieniasz
Calculus , Mathematics , Wolfram Language
8
REPLIES
7K
VIEWS

How to assign all possible binary values to variables of a function

QUESTION FROM: Mladen Pavicic | 6 years ago BY: Hans Dolhaine
Calculus , Discrete Mathematics , Mathematica , Mathematics
8
REPLIES
6.4K
VIEWS

Perform numerical nonlinear global optimization?

QUESTION FROM: Michael Fischer | 6 years ago BY: Shenghui Yang
Optimization , Mathematics , Wolfram Language
8
REPLIES
7.3K
VIEWS

[?] Delete cases that contain a certain string?

QUESTION FROM: Andrew Burnett | 6 years ago BY: Michael Helmle
Natural Language Processing , Wolfram Language
8
REPLIES
10.3K
VIEWS

Crime Rates in US major cities (2014)

CONTRIBUTED BY: Diego Zviovich | 6 years ago BY: Diego Zviovich
Staff Picks , Computational Humanities , Data Science , ...
8
REPLIES
19.9K
VIEWS

Test time series structural break and breakpoints?

QUESTION FROM: Jason Zhao | 6 years ago BY: Jason Zhao
Curated Data , Data Science , Finance , Statistics and Probability , ...
8
REPLIES
13.2K
VIEWS

Solve a linear system of ODEs?

QUESTION FROM: Abed Alnaif | 6 years ago BY: Abed Alnaif
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
8.5K
VIEWS

[WSC19] Fitting the World: Physical Scale from Satellite Images

CONTRIBUTED BY: William Goodall | 6 years ago BY: Jofre Espigule-Pons
Staff Picks , Artificial Intelligence , Data Science , ...
8
REPLIES
24.5K
VIEWS

Avoid problems with Fluid library in System Modeler 5?

QUESTION FROM: Eric Meyers | 6 years ago BY: Ankit Naik
Modeling , Product Set Up , SystemModeler
8
REPLIES
17.6K
VIEWS

Avoid NDSolve problem with system of differential equations?

QUESTION FROM: Roberta Jakab | 6 years ago BY: Roberta Jakab
Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
10.6K
VIEWS

[?] Break outer Do loop by an incident in inner Do loop?

QUESTION FROM: S G | 6 years ago BY: Neil Singer
Logic and Boolean Algebra , Mathematics , Wolfram Language
8
REPLIES
9.4K
VIEWS

[WSC19] Predicting Mountains' Locations

CONTRIBUTED BY: Lena Libon | 6 years ago BY: Lena Libon
Curated Data , Data Science , Earth Science , ...
8
REPLIES
25.4K
VIEWS

[WSC19] Visualizing a Binary Black Hole Merger

CONTRIBUTED BY: Macy Maurer Levin | 6 years ago BY: Macy Maurer Levin
Astronomy , Calculus , Dynamic Interactivity , ...
8
REPLIES
21.2K
VIEWS

"Mathematica not responding message" on Ubuntu

QUESTION FROM: Patrick Scheibe | 6 years ago BY: Paula V.
Mathematica , User Interface
8
REPLIES
16.7K
VIEWS

Solve a system of equations and avoid calculations without response?

QUESTION FROM: Dmitry Chebotarev | 6 years ago BY: Dmitry Chebotarev
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
8
REPLIES
10.1K
VIEWS

Unit Checking in System Modeler and making use of unit attributes

QUESTION FROM: Guido Wolf Reichert | 6 years ago BY: Guido Wolf Reichert
Modeling , SystemModeler , Units
8
REPLIES
11.1K
VIEWS

Connect to a FileMaker .fmp12 database using DatabaseLink?

QUESTION FROM: Murray Eisenberg | 6 years ago BY: Murray Eisenberg
Data Science , External Programs and Systems , Mathematica , Packages
8
REPLIES
10.6K
VIEWS

[?] Delete empty spaces in a list?

QUESTION FROM: M.A. Ghorbani | 6 years ago BY: Martijn Froeling
Wolfram Language
8
REPLIES
10.3K
VIEWS

How to make a Wolfram blog?

QUESTION FROM: Fabian Wenger | 6 years ago BY: Calle E
Authoring and Publishing
8
REPLIES
21.9K
VIEWS

Add contour lines on a map?

QUESTION FROM: M.A. Ghorbani | 6 years ago BY: M.A. Ghorbani
Geographic Information System , Graphics and Visualization , ...
8
REPLIES
4.5K
VIEWS

Get ImageRestyle neural network runtime in Mathematica 12?

QUESTION FROM: l van Veen | 6 years ago BY: Carlos Ylagan
Data Science , Image Processing , Machine Learning , Mathematica , ...
8
REPLIES
11.7K
VIEWS

The Humanities and Wolfram Language: a WTC 2018 follow-up

CONTRIBUTED BY: George Woodrow III | 6 years ago BY: George Woodrow III
Computational Humanities , Computational Linguistics , Education , ...
8
REPLIES
16.9K
VIEWS

Fastest way to find if a number has a 0 in its decimal representation?

QUESTION FROM: Fred Alstair | 6 years ago BY: l van Veen
High-Performance Computing , Mathematics , Wolfram Language
8
REPLIES
8.1K
VIEWS

[Numberphile] - The Square-Sum Problem

CONTRIBUTED BY: Sander Huisman | 6 years ago BY: Fluorine Dog
Staff Picks , Graphics and Visualization , Graphs and Networks , ...
8
REPLIES
41.6K
VIEWS

MapThread conflicting with DynamicModule

QUESTION FROM: Kamila Szklarczyk-Marshall | 6 years ago BY: Kamila Szklarczyk-Marshall
Dynamic Interactivity , Graphics and Visualization , ...
8
REPLIES
6.6K
VIEWS

Limit of a derivative to the imaginary

CONTRIBUTED BY: Luis Felipe Massena Misiec | 6 years ago BY: EDITORIAL BOARD
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
6.4K
VIEWS

Amazing comparison (700+ pages!) of PDE solving. There's a gap to be filled

CONTRIBUTED BY: Camila Garcia | 6 years ago BY: Anonymous User
Equation Solving , Mathematica , Mathematics , Physics
8
REPLIES
11.1K
VIEWS

What's the difference: Wolfram One vs Wolfram Development Platform?

QUESTION FROM: matthias merdes | 6 years ago BY: Guido Wolf Reichert
Wolfram Development Platform
8
REPLIES
31.9K
VIEWS

Plot a Dirac Delta Function?

QUESTION FROM: Luciano Pinheiro | 6 years ago BY: Luciano Pinheiro
Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
17.9K
VIEWS

The Scoville scale of peppers (151st birth anniversary of W.L. Scoville)

CONTRIBUTED BY: Jofre Espigule-Pons | 6 years ago BY: Evelyn Alnwickson
Biological Sciences , Data Science , Graphics and Visualization , ...
8
REPLIES
17.8K
VIEWS

Who understands the malfunction of the attached simulation?

QUESTION FROM: Ulrich Mutze | 6 years ago BY: Ulrich Mutze
Demonstrations , Mathematica , Modeling , Physics
8
REPLIES
11.8K
VIEWS

Animate these 2D plots?

QUESTION FROM: Ricardo Waste | 6 years ago BY: Ricardo Waste
Dynamic Interactivity , Graphics and Visualization , Mathematics , ...
8
REPLIES
5.1K
VIEWS

Set properties to Plot (lines and mesh styles)?

QUESTION FROM: Aymen Amer | 6 years ago BY: Aymen Amer
Graphics and Visualization , Mathematics , Wolfram Language
8
REPLIES
4.8K
VIEWS

Avoid bold font Exported graphics? (MMA 11.3 on macOS)

QUESTION FROM: Michael Trigatzis | 7 years ago BY: Michael Trigatzis
Graphics and Visualization , Import and Export , Mathematica , ...
8
REPLIES
8.9K
VIEWS

Prove 1 == 0 in Wolfram Language

CONTRIBUTED BY: David J M Park Jr | 7 years ago BY: Daniel Lichtblau
Mathematics , Wolfram Language
8
REPLIES
11K
VIEWS

Using Findfit

QUESTION FROM: Damodaran Achary | 7 years ago BY: Rohit Namjoshi
Chemical Engineering , Chemistry , Data Science , Mathematics
8
REPLIES
25.8K
VIEWS

Insert element into a sublist?

QUESTION FROM: David Kerr | 7 years ago BY: Vitaliy Kaurov
Mathematica , Wolfram Language
8
REPLIES
12.1K
VIEWS

Force Classify to treat data as numeric discrete count instead of Boolean?

QUESTION FROM: Jamie Dixson | 7 years ago BY: Rohit Namjoshi
Data Science , Machine Learning , Wolfram Language
8
REPLIES
6.1K
VIEWS

Solve the following non-linear integer max-problem with NMaximize?

QUESTION FROM: Christos Papahristodoulou | 7 years ago BY: Frank Kampas
Equation Solving , Optimization , Mathematics , ...
8
REPLIES
8.2K
VIEWS

Solve the reduced three-body problem?

QUESTION FROM: thomas rialan | 7 years ago BY: Alexander Trounev
Astronomy , Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
9.2K
VIEWS

Get the factorization of a polynomial?

QUESTION FROM: Roberto Cipollone | 7 years ago BY: Roberto Cipollone
Algebra , Calculus , Mathematics , Symbolic Computations , ...
8
REPLIES
4.9K
VIEWS

Replacing functions and variables

QUESTION FROM: Derek Handwerk | 7 years ago BY: Daniel Lichtblau
Mathematica , Mathematics , Wolfram Language
8
REPLIES
8.6K
VIEWS

Use CUDA to compute large output calculations?

QUESTION FROM: Omar Mahmoud | 7 years ago BY: Omar Mahmoud
Compilation , External Programs and Systems , Optimization , ...
8
REPLIES
9.4K
VIEWS

Present results of some calculations without using notebooks or CDF?

QUESTION FROM: Mikhail Strilnik | 7 years ago BY: Ian Williams
Authoring and Publishing , Import and Export , Mathematica , ...
8
REPLIES
10.1K
VIEWS

Solve an ODE by NDSolve an Interpolating function

QUESTION FROM: Rafael López | 7 years ago BY: Anonymous User
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
11.7K
VIEWS

Avoid errors while using RecurrenceTables?

QUESTION FROM: Albert Cattani | 7 years ago BY: Marco Thiel
Mathematica , Operating System and Network Access , Wolfram Language
8
REPLIES
6.2K
VIEWS

Reading Specific Dimensions of a Multidimensional Time Series?

QUESTION FROM: Mark Greenberg | 7 years ago BY: Henrik Schachner
Audio, Sound and Music , Data Science , Graphics and Visualization , ...
8
REPLIES
10.5K
VIEWS

User survey: What version of M are you using?

QUESTION FROM: Szabolcs Horvát | 7 years ago BY: Szabolcs Horvát
Mathematica , Operating System and Network Access , Packages , ...
8
REPLIES
13.2K
VIEWS

Get the entire output instead of wrapping it?

QUESTION FROM: Anton Savchenkov | 7 years ago BY: Anton Savchenkov
Geometry , Graphs and Networks , Mathematics , Wolfram Language
8
REPLIES
4.9K
VIEWS

Run a code multiple times and each time it returns a value?

QUESTION FROM: mohamed alzenad | 7 years ago BY: John Doty
Wolfram Language
8
REPLIES
6.4K
VIEWS

LayeredGeoGraphics -- An awesome way to build multi-layered custom maps!

CONTRIBUTED BY: Arnoud Buzing | 7 years ago BY: Alexey Popkov
Staff Picks , Curated Data , Data Science , Earth Science , ...
8
REPLIES
19.9K
VIEWS

Find the chemical composition of a compound solving a system of equations?

QUESTION FROM: Juan Manuel Casas-Solvas | 7 years ago BY: David J M Park Jr
Algebra , Chemistry , Equation Solving , Mathematics , ...
8
REPLIES
9.6K
VIEWS

Principle of RandomSearch method in NMinimize?

QUESTION FROM: Lukas Vacek | 7 years ago BY: Lukas Vacek
Mathematica , Optimization , Mathematics , Numerical Computation , ...
8
REPLIES
9.5K
VIEWS

Create Magic Cubes, moon level ( 9x9) ?

QUESTION FROM: Sergiy Skorin | 7 years ago BY: Sergiy Skorin
Algebra , Calculus , Mathematics , Recreation , Wolfram Language
8
REPLIES
10.6K
VIEWS

Custom activation function in Neural Network?

QUESTION FROM: narendra | 7 years ago BY: C. H.
Data Science , Machine Learning , Neural Networks , Wolfram Language
8
REPLIES
20.9K
VIEWS

Work with Graph object of Combinatorica package?

QUESTION FROM: Adam Zsolt Wagner | 7 years ago BY: Szabolcs Horvát
Graphs and Networks , Mathematics , Packages , Wolfram Language
8
REPLIES
9.1K
VIEWS

Increase the precision of calculations without SetPrecision in every step?

QUESTION FROM: Maha Youssef | 7 years ago BY: Daniel Lichtblau
Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
8.5K
VIEWS

resize large number of images to required size?

QUESTION FROM: Ashish Sharma | 7 years ago BY: Ashish Sharma
Image Processing , Import and Export , Machine Learning , ...
8
REPLIES
8.5K
VIEWS

Use NIntegrate with Boole and IntervalMemberQ?

QUESTION FROM: Shrihari Gopalakrishna | 7 years ago BY: Shrihari Gopalakrishna
Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
4.8K
VIEWS

[?] Understand orderings in ToExpression and RowBox?

QUESTION FROM: Aaron Naiman | 7 years ago BY: Aaron Naiman
Mathematica , Presentation and Notebooks , User Interface , ...
8
REPLIES
8K
VIEWS

Navigation keys for Mathematica slideshow presentation on Mac?

QUESTION FROM: Murray Eisenberg | 7 years ago BY: Marco Thiel
Mathematica , Presentation and Notebooks , User Interface
8
REPLIES
8.4K
VIEWS

Download a .stl file from a 3DPlot using Mathematica online Student?

QUESTION FROM: Tom Mendoza | 7 years ago BY: Tom Mendoza
3D Printing , Graphics and Visualization , Import and Export , ...
8
REPLIES
15.5K
VIEWS

What distance function does FindClusters use?

QUESTION FROM: Veronica Estrada | 7 years ago BY: Marco Thiel
Data Science , Machine Learning , Wolfram Language
8
REPLIES
5.5K
VIEWS

[?] Solve problem with PDF and discrete variates?

QUESTION FROM: Michael Kilburn | 7 years ago BY: Michael Kilburn
Graphics and Visualization , Mathematics , ...
8
REPLIES
5.7K
VIEWS

Play Canon with Mathematica

CONTRIBUTED BY: QiuHao Chen | 7 years ago BY: Frederick Wu
Audio, Sound and Music , Dynamic Interactivity , Mathematica , ...
8
REPLIES
19.8K
VIEWS

Get solutions to the gauged GL vortices in (1+1) dimensions?

QUESTION FROM: Benjamin Leather | 7 years ago BY: Paritosh Mokhasi
Equation Solving , Mathematics , Numerical Computation , Physics , ...
8
REPLIES
8.1K
VIEWS

[?] Print symbol names with Map?

QUESTION FROM: Fabrice Jossinet | 8 years ago BY: Fabrice Jossinet
Wolfram Language
8
REPLIES
4.2K
VIEWS

[?]  One simple equation gets answer, similar one does not?

QUESTION FROM: Anthony Torrero Collins | 8 years ago BY: Michael Rogers
Algebra , Equation Solving , Mathematics , Wolfram Language
8
REPLIES
10.2K
VIEWS
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