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Staff Picks

Music synthesizer: preset system and synth's inverse

CONTRIBUTED BY: Carlo Réan | 2 hours ago BY: EDITORIAL BOARD
2
REPLIES
87
VIEWS

Book & Course: Analysis with Mathematica

CONTRIBUTED BY: Galina Filipuk | 4 hours ago BY: Galina Filipuk
4
REPLIES
11.7K
VIEWS

The traveling salesman problem: How to find the fastest route through a theme park

CONTRIBUTED BY: Constance Carlot | 5 hours ago BY: EDITORIAL BOARD
1
REPLIES
148
VIEWS
All Discussions

What `Dynamic[expr,f]` is really about?

QUESTION FROM: Al Guy | 10 years ago BY: Al Guy
Dynamic Interactivity , Mathematica , Wolfram Language
6
REPLIES
5.8K
VIEWS

Create a dynamically updating function

QUESTION FROM: Al Guy | 10 years ago BY: Al Guy
Dynamic Interactivity , Mathematica , Wolfram Language
6
REPLIES
7.2K
VIEWS

How can the moons of Jupiter be used to determine the position on sea ?

QUESTION FROM: Wim Schols | 10 years ago BY: Hans Milton
Astronomy , Wolfram|Alpha
6
REPLIES
19K
VIEWS

Missing["KeyAbsent", somekey] (How to extract somekey)?

QUESTION FROM: Caitlin Ramsey | 10 years ago BY: Udo Krause
Data Science , Mathematica , Wolfram Language
6
REPLIES
15.8K
VIEWS

How can I collapse a list of nearly unique vectors?

QUESTION FROM: Mike Luntz | 10 years ago BY: Daniel Lichtblau
Mathematica , Mathematics , Wolfram Language
6
REPLIES
8.5K
VIEWS

Creating a 3D mesh plot and exporting it to an STL file for 3D printing

QUESTION FROM: Phalgun Lolur | 10 years ago BY: kulbirdi
3D Printing , Geometry , Graphics and Visualization , Mathematics , ...
6
REPLIES
75.5K
VIEWS

How do I integrate this in mathematica?

QUESTION FROM: Peter Hemmälin | 10 years ago BY: Daniel Lichtblau
Calculus , Mathematica , Wolfram Language
6
REPLIES
8.4K
VIEWS

Mean Imputation

QUESTION FROM: Gira Ahmed | 10 years ago BY: Todd Rowland
Mathematica , Numerical Computation , Statistics and Probability , ...
6
REPLIES
7.7K
VIEWS

why does FindRoot with Integrate inside not always work correctly

QUESTION FROM: Mike Luntz | 10 years ago BY: Bruce Miller
Equation Solving , Mathematica , Numerical Computation , ...
6
REPLIES
9.9K
VIEWS

how to decipher some Mathematica terminology regarding system performance

QUESTION FROM: Gary Lewis | 11 years ago BY: Gary Lewis
Mathematica , Tuning and Debugging , Wolfram Language
6
REPLIES
8.2K
VIEWS

Runge-Kutta Method, stiffness occur, how to solve it?

QUESTION FROM: Thai Kee Gan | 11 years ago BY: Thai Kee Gan
Calculus , Equation Solving , Mathematica , Numerical Computation
6
REPLIES
11.9K
VIEWS

“Home Edition” license for Mathematica: country and upgrades

QUESTION FROM: Marc Tinder | 11 years ago BY: David Mackay
Mathematica
6
REPLIES
10.1K
VIEWS

Edge styling in graphs

QUESTION FROM: Peanut Butter | 11 years ago BY: Jaebum Jung
Discrete Mathematics , Graphics and Visualization , ...
6
REPLIES
11.8K
VIEWS

Help with NDSolve`FiniteDifferenceDerivative

QUESTION FROM: Alan Lewis | 11 years ago BY: Alan Lewis
Calculus , Mathematica , Wolfram Language
6
REPLIES
11.1K
VIEWS

Large data sets and 3D plots

QUESTION FROM: Malcolm Woodruff | 11 years ago BY: Malcolm Woodruff
Data Science , Graphics and Visualization , Import and Export , ...
6
REPLIES
41.4K
VIEWS

Putting text on a graphic Plot that has a rotated label on the left

QUESTION FROM: perl hackett | 11 years ago BY: perl hackett
Graphics and Visualization , Wolfram Language
6
REPLIES
7.2K
VIEWS

What is wrong with my code, I get an output of an orange block.

QUESTION FROM: Steven Fields | 11 years ago BY: EDITORIAL BOARD
Graphics and Visualization , Mathematica , Mathematics , ...
6
REPLIES
10.1K
VIEWS

Two problems - Limit and ContourPlot

QUESTION FROM: Ehsan Monabbati | 11 years ago BY: Daniel Lichtblau
Calculus , Mathematica , Mathematics , Wolfram|Alpha
6
REPLIES
13.4K
VIEWS

Please help me solve this error from NonlinearModelFit

QUESTION FROM: Jaydeep Yadav | 11 years ago BY: David Reiss
Mathematica , Optimization , Wolfram Language
6
REPLIES
8.5K
VIEWS

Defining a function with a sum

QUESTION FROM: Gabrielle DM | 11 years ago BY: David Reiss
Mathematica , Mathematics , Wolfram Language
6
REPLIES
3.7K
VIEWS

Generating a dummy variable

QUESTION FROM: Florian Bannwart | 11 years ago BY: Florian Bannwart
Mathematica
6
REPLIES
5.1K
VIEWS

Mean of the result of iterations...

QUESTION FROM: Fat Villager | 11 years ago BY: Fat Villager
Computer Science , Physics
6
REPLIES
5.8K
VIEWS

Having problems with integration

QUESTION FROM: Raymond Low | 11 years ago BY: Daniel Lichtblau
Engineering , Mathematics
6
REPLIES
9.6K
VIEWS

blue variables

QUESTION FROM: Mark Lawton | 11 years ago BY: David Reiss
Wolfram Language
6
REPLIES
8.5K
VIEWS

Magnetic field of torus in Mathematica

QUESTION FROM: Aleff Vinicius | 11 years ago BY: Aleff Vinicius
Engineering , Physics , Wolfram Language
6
REPLIES
6.9K
VIEWS

Integral evaluation fails

QUESTION FROM: Welling Oei | 11 years ago BY: Udo Krause
Calculus , Equation Solving , Mathematica , Wolfram Language
6
REPLIES
8.5K
VIEWS

May I post Mathematica-created graphs on an Internet forum?

QUESTION FROM: Marcin Ga??zka | 11 years ago BY: Murray Eisenberg
Education , Mathematica
6
REPLIES
8.1K
VIEWS

Matrix Operations help!!

QUESTION FROM: Azhar Uddin Mohammed | 11 years ago BY: Bruce Miller
Algebra , Mathematica , Wolfram Language
6
REPLIES
9.3K
VIEWS

Replacement in a condition /;

QUESTION FROM: Richard Klopp | 11 years ago BY: David Reiss
Mathematica , Wolfram Language
6
REPLIES
5.4K
VIEWS

How to create an augmented matrix form a system of equations in mathematica

QUESTION FROM: Dave Jeudy | 11 years ago BY: Dave Jeudy
Algebra , Education , Mathematica , Mathematics
6
REPLIES
14.9K
VIEWS

How to find a quadratic equation given the solution??

QUESTION FROM: Ambi J | 11 years ago BY: Ambi J
Algebra , Mathematics
6
REPLIES
4.4K
VIEWS

Integral. Wrong answer.

QUESTION FROM: Iurii Popov | 11 years ago BY: Daniel Lichtblau
Calculus , Mathematica , Mathematics
6
REPLIES
9.4K
VIEWS

Why does the "APIFunction" require the successive code on the same line?

QUESTION FROM: Matt Brauer | 11 years ago BY: Matt Brauer
Wolfram Cloud , Wolfram Language
6
REPLIES
6.5K
VIEWS

Solving ordinary differential equations [growth equation]

QUESTION FROM: Brendan John | 11 years ago BY: Arturo Ramos
Calculus , Equation Solving , Mathematica , Wolfram Language
6
REPLIES
6.5K
VIEWS

Numerical solution of fourth order differential equation

QUESTION FROM: sergei pronkevich | 11 years ago BY: sergei pronkevich
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
6
REPLIES
7.3K
VIEWS

Why am I not getting a result for the following computation?

QUESTION FROM: Haris Krijestorac | 11 years ago BY: Bill Simpson
Wolfram|Alpha , Wolfram Community
6
REPLIES
15.7K
VIEWS

How do I translate multiples vectors with &/@?

QUESTION FROM: margherita ferrucci | 11 years ago BY: margherita ferrucci
Wolfram Language
6
REPLIES
11.9K
VIEWS

Sum of binomials

QUESTION FROM: d m | 11 years ago BY: Jim Baldwin
Statistics and Probability , Wolfram Language
6
REPLIES
5.6K
VIEWS

Large Scale Optimization in Mathematica

QUESTION FROM: Priyan Fernando | 11 years ago BY: Priyan Fernando
Mathematica , Optimization , Mathematics , Numerical Computation , ...
6
REPLIES
9.6K
VIEWS

Mathematica 9.0.1 hangs when running on Linux over the X2Go client

QUESTION FROM: Michael Roman | 11 years ago BY: Justin Vrooman
Mathematica , Operating System and Network Access
6
REPLIES
8.2K
VIEWS

Can someone write out the command below?

QUESTION FROM: Anonymous User | 11 years ago BY: David Reiss
Mathematica , Wolfram Language
6
REPLIES
3.4K
VIEWS

[Solved] Print n-th number from list

QUESTION FROM: Piotr K?kol | 11 years ago BY: Piotr K?kol
Discrete Mathematics , Mathematics , Wolfram|Alpha
6
REPLIES
7.1K
VIEWS

WolframScript problem

QUESTION FROM: Nico van der Dussen | 11 years ago BY: Udo Krause
Raspberry Pi , Wolfram Language
6
REPLIES
11.1K
VIEWS

Setting global precision and decimals

QUESTION FROM: Anne-Claire Martines | 11 years ago BY: Anne-Claire Martines
Biological Sciences , Equation Solving , Mathematica , Modeling , ...
6
REPLIES
11.1K
VIEWS

Reading from multiple data files

QUESTION FROM: Nilanjan Banik | 11 years ago BY: Nilanjan Banik
Astronomy , Computer Science , Mathematics , Physics
6
REPLIES
7.6K
VIEWS

Trying to produce some matrices, but getting syntax errors :(

QUESTION FROM: Anders Bredahl | 11 years ago BY: Udo Krause
Algebra , Mathematica , Presentation and Notebooks , User Interface
6
REPLIES
8.2K
VIEWS

Question concerning finite fields

QUESTION FROM: Joaquim Nogueira | 11 years ago BY: Joaquim Nogueira
Algebra , Wolfram Language
6
REPLIES
4.5K
VIEWS

Gallery of Nice Tweeted Examples

CONTRIBUTED BY: Andre Kuzniarek | 11 years ago BY: Bernat Espigulé
6
REPLIES
17.9K
VIEWS

Solution of differential equations with boundary conditions contain "Limit"

QUESTION FROM: Robert Pham | 11 years ago BY: Robert Pham
Mathematica , Physics
6
REPLIES
11.2K
VIEWS

Why wolfram returns a bad response to a limit?

QUESTION FROM: Eduen Sarceno | 11 years ago BY: Marco Thiel
Mathematica
6
REPLIES
3.2K
VIEWS

How to globally modify styles?

QUESTION FROM: Ulrich Utiger | 11 years ago BY: Ulrich Utiger
Mathematica , User Interface
6
REPLIES
7K
VIEWS

Can not built MathLink Examples on Raspberry Pi

QUESTION FROM: Nico Maas | 11 years ago BY: Nico Maas
External Programs and Systems , Raspberry Pi , Software Development , ...
6
REPLIES
12.4K
VIEWS

How would you fit this data in Mathematica?

QUESTION FROM: Anonymous User | 11 years ago BY: Dominik Hezel
Graphics and Visualization , Mathematica , Optimization , ...
6
REPLIES
7.2K
VIEWS

How disable visual hinting of computation dependency

QUESTION FROM: Fabian Biebl | 11 years ago BY: Fabian Biebl
Graphics and Visualization , Mathematica , User Interface
6
REPLIES
4.8K
VIEWS

Generate list of points satisfying constraints

QUESTION FROM: Betty Love | 11 years ago BY: Betty Love
Graphics and Visualization , Mathematica , Operations Research , ...
6
REPLIES
10.3K
VIEWS

MMA10: ExportString is not available in trial version of Wolfram Language

QUESTION FROM: Diego Zviovich | 11 years ago BY: Sean Clarke
Curated Data , Mathematica , Wolfram Language
6
REPLIES
18K
VIEWS

Issues with Mathematica 10 and LogPlot grid lines

QUESTION FROM: F. Ríos | 11 years ago BY: Henrik Schachner
Graphics and Visualization , Mathematica , Wolfram Language
6
REPLIES
16.7K
VIEWS

broken reciprocal unit conversion from mpg to L/100 km

QUESTION FROM: Adam Tester | 11 years ago BY: Adam Tester
Units , Wolfram|Alpha
6
REPLIES
13.6K
VIEWS

Plot 3D vectors

QUESTION FROM: Mitja Jan?i? | 11 years ago BY: Gary Palmer
Mathematica
6
REPLIES
7.1K
VIEWS

Bárðarbunga earthquake swarm

CONTRIBUTED BY: Arnoud Buzing | 11 years ago BY: Jaebum Jung
Data Science , Earth Science , Geographic Information System , ...
6
REPLIES
28.8K
VIEWS

Mathematica won't give me a numerical result

QUESTION FROM: Daniel Tausend | 11 years ago BY: Paul Cleary
Mathematica
6
REPLIES
18.2K
VIEWS

How to solve these simultaneous equations?

QUESTION FROM: rr003035 | 11 years ago BY: David Keith
Algebra , Equation Solving , Mathematica , Wolfram Language
6
REPLIES
6.5K
VIEWS

Are PlotLegend and axis labeling supported for Wolfram|Alpha?

QUESTION FROM: Bob Wyman | 11 years ago BY: Bob Wyman
Graphics and Visualization , Wolfram|Alpha , Wolfram Cloud , ...
6
REPLIES
10.5K
VIEWS

Is W.Alpha calculating double integrals incorrectly? Why is this happening?

QUESTION FROM: A Afif | 11 years ago BY: A Afif
Calculus , Wolfram|Alpha , Wolfram|Alpha Apps
6
REPLIES
12.9K
VIEWS

Why doesn't an Image resize in a Column or Grid

QUESTION FROM: David Reiss | 11 years ago BY: David Reiss
Image Processing , Mathematica , Presentation and Notebooks , ...
6
REPLIES
6.5K
VIEWS

to Select some elements of a matrix

QUESTION FROM: margherita ferrucci | 11 years ago BY: margherita ferrucci
Algebra , Wolfram Language
6
REPLIES
4.2K
VIEWS

How can I merge lists using Riffle and Partition, when I need a function?

QUESTION FROM: Ivan Gumenyuk | 11 years ago BY: Ivan Gumenyuk
Mathematica , Wolfram Language
6
REPLIES
5.1K
VIEWS

Computing Cellular Automatons with the Wolfram Cloud in an Android app

CONTRIBUTED BY: Brett Haines | 11 years ago BY: Brett Haines
Wolfram Cloud , Wolfram Language
6
REPLIES
32.3K
VIEWS

Language for plotting in Mathematica 9

QUESTION FROM: Anvit Garg | 11 years ago BY: David Reiss
Graphics and Visualization , Mathematica , ...
6
REPLIES
3.6K
VIEWS

How to combine graphics

QUESTION FROM: Gaurav Pandey | 11 years ago BY: Isaac Abraham
Graphics and Visualization , Mathematica , Wolfram Language
6
REPLIES
9.4K
VIEWS

Manipulate Aborts in Version 10

QUESTION FROM: Gregory Lypny | 11 years ago BY: Gregory Lypny
Dynamic Interactivity , Mathematica , Wolfram Language
6
REPLIES
6.1K
VIEWS

Input of sensitive data in Wolfram Cloud

QUESTION FROM: Paul Simon | 11 years ago BY: Fred Klingener
Data Science , Medical Sciences , Wolfram Cloud , ...
6
REPLIES
12K
VIEWS

How to separate real and imaginary parts of a large complex fraction?

QUESTION FROM: ver din | 11 years ago BY: Bill Simpson
Algebra , Mathematica , Wolfram Language
6
REPLIES
28.6K
VIEWS

default font in graphics of Mathematica 10

QUESTION FROM: Ali Tabei | 11 years ago BY: David Reiss
Graphics and Visualization , Mathematica , Wolfram Language
6
REPLIES
16K
VIEWS

Unable to solve a double integration

QUESTION FROM: kok wong | 11 years ago BY: Bill Simpson
Calculus , Mathematica , Numerical Computation , Wolfram Language
6
REPLIES
13.7K
VIEWS

FindMaximum gives wrong answer for simple non-linear function

QUESTION FROM: Mauricio Gonzalez | 11 years ago BY: Mauricio Gonzalez
Mathematica
6
REPLIES
10.5K
VIEWS

Removing Items from Multi-Level Lists

QUESTION FROM: Brad Varey | 11 years ago BY: Marco Thiel
Mathematica
6
REPLIES
3.3K
VIEWS

Legends again and again and again

QUESTION FROM: David Keith | 11 years ago BY: David Keith
Graphics and Visualization , Mathematica , Wolfram Language
6
REPLIES
10.2K
VIEWS

How do I add vertex weights?

QUESTION FROM: Shawn Doyle | 11 years ago BY: Shawn Doyle
Discrete Mathematics , Graphs and Networks , Mathematica , ...
6
REPLIES
5.5K
VIEWS

How do you analyze data of a Facebook PAGE?

QUESTION FROM: Becca Bastin | 11 years ago BY: Sean Clarke
Graphs and Networks , Mathematica , Social Science
6
REPLIES
17.1K
VIEWS

comparing execution times Bairstow method

QUESTION FROM: Luis Ledesma | 11 years ago BY: Daniel Lichtblau
Algebra , Recreation , Software Development , Wolfram Language
6
REPLIES
6.5K
VIEWS

How to install own (encoded) package in Wolfram Cloud

QUESTION FROM: Hans Gerlach Woudboer | 11 years ago BY: Hans Gerlach Woudboer
Packages , Wolfram Cloud
6
REPLIES
13.4K
VIEWS

List-threading operations with logicals

QUESTION FROM: Jim Simons | 11 years ago BY: Marco Thiel
Discrete Mathematics , Mathematica , Wolfram Language
6
REPLIES
4.1K
VIEWS

Problems with Assumptions for Integrate and Reduce

QUESTION FROM: Paul Reiser | 11 years ago BY: Paul Reiser
Algebra , Calculus , Symbolic Computations , Wolfram Language
6
REPLIES
11.2K
VIEWS

Downgrade Mathematica Version to run an 8.0 notebook?

QUESTION FROM: INTAN SUPRABA | 11 years ago BY: INTAN SUPRABA
Mathematica , User Interface , Wolfram Language
6
REPLIES
10.3K
VIEWS

Pause on presentation

QUESTION FROM: Jorge Silva Azevedo | 11 years ago BY: Jorge Silva Azevedo
Graphics and Visualization , Wolfram Language
6
REPLIES
8.1K
VIEWS

Working with Nested Lists, Trying for a Partitioned Average

QUESTION FROM: Josh Wofford | 11 years ago BY: Josh Wofford
Calculus , Chemistry , Mathematica , Mathematics
6
REPLIES
14.8K
VIEWS

How to Append Graphs and/or combine Plots?

QUESTION FROM: Jeb Jennings | 11 years ago BY: Bill Simpson
Graphics and Visualization , Mathematica , Wolfram Language
6
REPLIES
7.2K
VIEWS

Area between 2D cartesian curves, fill between two ordinates, for calculus

QUESTION FROM: Ian Willson | 11 years ago BY: Ian Willson
Graphics and Visualization , Mathematica , Mathematics , ...
6
REPLIES
13.4K
VIEWS

Graphing parametric surfaces

QUESTION FROM: Michael Gerardo | 11 years ago BY: Udo Krause
Graphics and Visualization , Mathematica , Mathematics , ...
6
REPLIES
6.6K
VIEWS

Exclusions with ParametricPlot3D

QUESTION FROM: Bryan Lettner | 11 years ago BY: Melvyn Stancliffe
Geometry , Graphics and Visualization , Mathematica
6
REPLIES
6.8K
VIEWS

Are there any 3rd party gridMathematica services?

QUESTION FROM: Bryan Lettner | 11 years ago BY: Bryan Lettner
gridMathematica , High-Performance Computing , Mathematica , ...
6
REPLIES
9.9K
VIEWS

Problem with PlanarGraphPlot And ConvexHull

QUESTION FROM: Kartik | 11 years ago BY: Kartik
Geometry , Graphics and Visualization , Graphs and Networks , ...
6
REPLIES
5.3K
VIEWS

How to plot and manipulate eigenvalues when changing parameters ?

QUESTION FROM: Bene Bachelot | 11 years ago BY: Bene Bachelot
Algebra , Dynamic Interactivity , Graphics and Visualization , ...
6
REPLIES
10.1K
VIEWS

How can I expand a power series with power series coefficients?

QUESTION FROM: Lyle Ramshaw | 11 years ago BY: Lyle Ramshaw
Mathematica , Wolfram Language
6
REPLIES
4.1K
VIEWS

Weird problem with eigenvalues of large matrices

QUESTION FROM: Vahagn Abgaryan | 11 years ago BY: Vahagn Abgaryan
Algebra , Mathematica , Wolfram Language
6
REPLIES
6.8K
VIEWS

I want to perform simple math on very large numbers, how?

QUESTION FROM: Jeffrey Robinson | 11 years ago BY: Jeffrey Robinson
Numerical Computation , Wolfram|Alpha
6
REPLIES
14.2K
VIEWS

Extracting solvent O atoms from PDB files

QUESTION FROM: Veit Elser | 11 years ago BY: Vitaliy Kaurov
Biological Sciences , Chemistry , Data Science , Mathematica , ...
6
REPLIES
16.1K
VIEWS

Plotting a family of curves

QUESTION FROM: Kostas Ladiellis | 11 years ago BY: Mark Dooris
Graphics and Visualization , Mathematica
6
REPLIES
13.2K
VIEWS

DSolve returns Infinite expression 1/0

QUESTION FROM: Andrea Gazzotti | 11 years ago BY: David Keith
Calculus , Mathematica
6
REPLIES
7.3K
VIEWS
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