New Member New Member

Discussions List Discussions List

Staff Picks

Artemis II trajectory: crewed lunar flyby to launch on April 1, 2026

CONTRIBUTED BY: Jeffrey Bryant | 18 hours ago BY: EDITORIAL BOARD
1
REPLIES
67
VIEWS

Adiabatic quantum computing: spectral analysis and simulation of a one-qubit system

CONTRIBUTED BY: Sebastian Rodriguez | 21 hours ago BY: EDITORIAL BOARD
1
REPLIES
35
VIEWS

WI2easy: warm inflation dynamics made easy

CONTRIBUTED BY: Rudnei Ramos | 22 hours ago BY: EDITORIAL BOARD
1
REPLIES
42
VIEWS
All Discussions

Small angle rotation matrix

QUESTION FROM: David Waddell | 12 years ago BY: David Waddell
Algebra , Mathematics , Wolfram Language
3
REPLIES
9.8K
VIEWS

Map/Apply over a list with optional arguments

QUESTION FROM: Casper YC | 12 years ago BY: Bruce Miller
Mathematica , Symbolic Computations , Wolfram Language
3
REPLIES
12.1K
VIEWS

Running a simple regresson

QUESTION FROM: Pat McCarthy | 12 years ago BY: David Reiss
Business Analytics , Mathematica , Optimization , Wolfram Language
3
REPLIES
8.5K
VIEWS

How to use laplace transform to solve a system w/ Wolfram's interface

QUESTION FROM: James Daigle | 12 years ago BY: David Reiss
Calculus , Wolfram|Alpha
3
REPLIES
10.3K
VIEWS

How to choose a solution

QUESTION FROM: Oscar Boher | 12 years ago BY: Christopher French
Dynamic Interactivity , Graphics and Visualization , Mathematica , ...
3
REPLIES
5.9K
VIEWS

problem with drawing in a loop

QUESTION FROM: Viktoriya Martynyuk-Lototska | 12 years ago BY: Udo Krause
Graphics and Visualization , Mathematica , Mathematics
3
REPLIES
3.3K
VIEWS

How can I write a simple program to give several outputs for 2 inputs?

QUESTION FROM: Drew Hammerman | 12 years ago BY: Mirek M
Dynamic Interactivity , Equation Solving , Numerical Computation , ...
3
REPLIES
8.3K
VIEWS

Problem on IntervalUnion[]

QUESTION FROM: Casper YC | 12 years ago BY: Udo Krause
Mathematica , Symbolic Computations
3
REPLIES
4.4K
VIEWS

Howto prevent Mesh-Lines from bleeding through in Plot3D-plots?

QUESTION FROM: Thomas W | 12 years ago BY: Yuzhu Lu
Graphics and Visualization , Mathematica
3
REPLIES
10.6K
VIEWS

Beginner material to learn from

QUESTION FROM: omair ahmed | 12 years ago BY: Richard Gaylord
Mathematica , Wolfram Language
3
REPLIES
7.3K
VIEWS

Animate cannot use functions

QUESTION FROM: Bruce | 12 years ago BY: Bruce
Dynamic Interactivity , Graphics and Visualization , Mathematica
3
REPLIES
6.8K
VIEWS

Beginner, help with Plot function

QUESTION FROM: Ben LeDoux | 12 years ago BY: Ben LeDoux
Graphics and Visualization , Mathematica
3
REPLIES
4.3K
VIEWS

How can Sin[z Sin[x]] be expanded ?

QUESTION FROM: Rinke Wijngaarden | 12 years ago BY: Udo Krause
Mathematics , Wolfram Language
3
REPLIES
6.3K
VIEWS

Magnetic Moments

QUESTION FROM: Sandra Deckel | 12 years ago BY: Michael Hale
Physics
3
REPLIES
7.9K
VIEWS

Table Command Not Working as Expected

QUESTION FROM: Tim Mayes | 12 years ago BY: Tim Mayes
Mathematica , Numerical Computation
3
REPLIES
4.4K
VIEWS

The Newton's method in the mean of Interval

QUESTION FROM: Julia Ilkiv | 12 years ago BY: Anonymous User
Equation Solving , Mathematica
3
REPLIES
5.7K
VIEWS

Coupled non-linear boundary value ODEs

QUESTION FROM: vahid khalili | 12 years ago BY: Frank Kampas
Calculus , Engineering , Mathematica , Wolfram Language
3
REPLIES
8K
VIEWS

ParallelTable without parallelism restricted by outermost iterator

CONTRIBUTED BY: William Rummler | 12 years ago BY: Michael Hale
High-Performance Computing , Mathematica
3
REPLIES
11.1K
VIEWS

operations with lists

QUESTION FROM: Luis Ledesma | 12 years ago BY: Girish Arabale
Mathematica , Recreation , Wolfram Language
3
REPLIES
10.9K
VIEWS

Sorting matrix

QUESTION FROM: Luis Ledesma | 12 years ago BY: Shenghui Yang
Mathematica , Mathematics , Signal Processing
3
REPLIES
4.6K
VIEWS

Mathematica® based math Courses?

CONTRIBUTED BY: JOHN L HANK | 12 years ago BY: Sam Carrettie
Computer-Based Maths , Education , Mathematica , User Interface
3
REPLIES
12.6K
VIEWS

To Hex and Back Again

QUESTION FROM: Brad Varey | 12 years ago BY: Brad Varey
Mathematica
3
REPLIES
7.7K
VIEWS

How do I install the 9.0.1 Mathematica update on my Mac?

QUESTION FROM: B.M. Döhring | 12 years ago BY: Sean Clarke
Mathematica , Product Set Up
3
REPLIES
7.1K
VIEWS

Measurement Concept: Metering for Wind and photvoltaik

QUESTION FROM: Aaron Spring | 12 years ago BY: Jan Brugard
Engineering , SystemModeler
3
REPLIES
9K
VIEWS

A product of matrixes that returns 0. instead of the correct result

QUESTION FROM: Andrea Gazzotti | 12 years ago BY: Ilian Gachevski
Algebra , Mathematica , Wolfram Language
3
REPLIES
2.9K
VIEWS

Problem with LAPACK library compiling

QUESTION FROM: Salman Zaffar | 12 years ago BY: Shenghui Yang
SystemModeler
3
REPLIES
9.4K
VIEWS

Discrete surface plane intersection

QUESTION FROM: Laurent Barrallier | 12 years ago BY: Vitaliy Kaurov
Graphics and Visualization , Mathematica , Mathematics , ...
3
REPLIES
8.5K
VIEWS

Problem with NDSolve

QUESTION FROM: Josh Wofford | 12 years ago BY: Josh Wofford
Calculus , Mathematica , Wolfram Language
3
REPLIES
3.3K
VIEWS

Get the End Points of an Edge

QUESTION FROM: Suman Kundu | 12 years ago BY: David Reiss
Computer Science , Graphs and Networks , Mathematica , Mathematics , ...
3
REPLIES
7.8K
VIEWS

How to minimize a vector function

QUESTION FROM: Juri Bruciati | 12 years ago BY: Frank Kampas
Optimization , Wolfram Language
3
REPLIES
6.3K
VIEWS

What is the symbol for exponentiation and where is it found?

QUESTION FROM: James Gordon | 12 years ago BY: David Reiss
Algebra , Mathematica , Wolfram|Alpha
3
REPLIES
4.8K
VIEWS

Multidimensional DiracDelta: reference point AFTER integration??

QUESTION FROM: Mauricio Lobos | 12 years ago BY: David Keith
Calculus , Mathematica , Mathematics , Wolfram Language
3
REPLIES
6.3K
VIEWS

General 2D surfaces from axial behaviour and discrete off-axis points

QUESTION FROM: Art Knifton | 12 years ago BY: Sean Clarke
Mathematica , Mathematics , Numerical Computation
3
REPLIES
2.1K
VIEWS

Replacing Variables from a big piece of code

QUESTION FROM: Sandu Ursu | 12 years ago BY: Bill Simpson
Mathematica , User Interface
3
REPLIES
3.8K
VIEWS

Optimization

QUESTION FROM: He R | 12 years ago BY: Frank Kampas
Mathematica , Optimization
3
REPLIES
3.7K
VIEWS

Just trying to enter a complex fraction with no luck

QUESTION FROM: Glen Brewer | 12 years ago BY: Glen Brewer
Mathematics , User Interface , Wolfram|Alpha
3
REPLIES
4.6K
VIEWS

Learning Curve

QUESTION FROM: Edward Rice | 12 years ago BY: Szabolcs Horvát
Mathematica , Wolfram Community , Wolfram Language , Wolfram U
3
REPLIES
10.7K
VIEWS

Examples from doc don't work on PC; work fine on Raspi.

QUESTION FROM: David Bethune | 12 years ago BY: David Reiss
Curated Data , Mathematica , Raspberry Pi
3
REPLIES
5K
VIEWS

Connection to Sphero robot from Mathematica

CONTRIBUTED BY: Phil Ngo | 12 years ago BY: EDITORIAL BOARD
Augmented and Virtual Realities , Connected Devices , ...
3
REPLIES
27.2K
VIEWS

Double Integral Symbols don't work as advertised

QUESTION FROM: Mackenzie Campbell | 12 years ago BY: Mackenzie Campbell
Calculus , Mathematica
3
REPLIES
8.8K
VIEWS

How to Speed Up Linear System of ODE

QUESTION FROM: selahittin cinar | 12 years ago BY: selahittin cinar
Algebra , Calculus , Equation Solving , Mathematica , ...
3
REPLIES
8.2K
VIEWS

Loop statement inside an Exponential

QUESTION FROM: sean roubion | 12 years ago BY: Bill Simpson
Computer Science
3
REPLIES
6.2K
VIEWS

What's wrong with this code?

QUESTION FROM: Steven Thomas | 12 years ago BY: EDITORIAL BOARD
Mathematica
3
REPLIES
6.5K
VIEWS

Back by popular demand: Write Faster Code with Wolfram Language Workshop

CONTRIBUTED BY: Jamie Peterson | 12 years ago BY: Derek Hall
Computer Science , Mathematica , Raspberry Pi , ...
3
REPLIES
20.3K
VIEWS

FindMaximum huge divergence from expected results

QUESTION FROM: Henry Banks | 12 years ago BY: Bill Simpson
Equation Solving , Mathematica , Numerical Computation , ...
3
REPLIES
6.8K
VIEWS

Structural analysis based on Wolfram Mathematica

CONTRIBUTED BY: Sergey Orlov | 12 years ago BY: Peter Adams
Civil Engineering , Engineering , Mathematica , Mathematica Add-Ons
3
REPLIES
20.3K
VIEWS

graph of the difference of two interpolating functions

QUESTION FROM: Mark Turtsinskyi | 12 years ago BY: Mark Dooris
Mathematics , Wolfram Language
3
REPLIES
5.1K
VIEWS

How to find global minimum value for big, exact objective function

QUESTION FROM: Usman Rauf | 12 years ago BY: Bill Simpson
Equation Solving , Mathematica , Numerical Computation , ...
3
REPLIES
6.1K
VIEWS

Complement[] with tolerance on comparisons?

QUESTION FROM: Jeff Burns | 12 years ago BY: Szabolcs Horvát
Mathematica , Wolfram Language
3
REPLIES
5K
VIEWS

How to make this recurrence formula run faster

QUESTION FROM: Tom Zinger | 12 years ago BY: Tom Zinger
Mathematica , Optimization , Wolfram Language
3
REPLIES
9.9K
VIEWS

Is there an error in Mathematica 9.0.1 integral?

QUESTION FROM: Shimon Rubin | 12 years ago BY: Sean Clarke
Calculus , Mathematica
3
REPLIES
6.5K
VIEWS

how to get the required list

QUESTION FROM: adil qayyum | 12 years ago BY: Mark Dooris
Mathematics , Wolfram Language
3
REPLIES
3.8K
VIEWS

NDSolvePDE

QUESTION FROM: selahittin cinar | 12 years ago BY: Sean Clarke
Mathematica , Mathematics , Numerical Computation
3
REPLIES
5.2K
VIEWS

Is there only one sign for the union of to sets?

QUESTION FROM: Nickel Paulsen | 12 years ago BY: Sean Clarke
Mathematica , Mathematics , User Interface
3
REPLIES
5.5K
VIEWS

Six degrees of separation - how to build Kevin Bacon Oracle

CONTRIBUTED BY: Vitaliy Kaurov | 12 years ago BY: Vitaliy Kaurov
Data Science , Graphics and Visualization , Graphs and Networks , ...
3
REPLIES
25.4K
VIEWS

Convert unobserved components model equations to state space model?

QUESTION FROM: Alex Isakov | 12 years ago BY: Suba Thomas
Control Systems , Economics , Finance , Mathematica , ...
3
REPLIES
12.3K
VIEWS

Can't plot unsolved function

QUESTION FROM: Amy Burnett | 12 years ago BY: Bill Simpson
Graphics and Visualization , Mathematica
3
REPLIES
3.3K
VIEWS

Mathematica applications around biomedical engineering and medicine?

QUESTION FROM: Emilio Botero | 12 years ago BY: Sam Carrettie
Biological Sciences , Computer Science , Engineering , Mathematica , ...
3
REPLIES
20.2K
VIEWS

Finding out who benefits from laws, rules and regulations.

CONTRIBUTED BY: Sara Peterson | 12 years ago BY: Alexey Podchufarov
Data Science , Mathematica , Operations Research , Social Science , ...
3
REPLIES
14.6K
VIEWS

DeviceOpen[] Function

QUESTION FROM: Jose Calderon | 12 years ago BY: Diego Zviovich
Raspberry Pi , Wolfram Language
3
REPLIES
9.5K
VIEWS

plotting a function with a changing constant in a graph

QUESTION FROM: Ryan Sampson | 12 years ago BY: S M Blinder
Graphics and Visualization , Mathematica
3
REPLIES
16.1K
VIEWS

import and export list: input and output do not match

QUESTION FROM: luca bardill | 12 years ago BY: luca bardill
Import and Export , Mathematica
3
REPLIES
3.9K
VIEWS

Sorting synonyms

QUESTION FROM: Elijah Pogonatus | 12 years ago BY: Vitaliy Kaurov
Wolfram|Alpha , Wolfram Language
3
REPLIES
7.8K
VIEWS

Ideas for a physics-based Mathematica project?

QUESTION FROM: Liam Walker | 12 years ago BY: Sam Carrettie
Astronomy , Education , Mathematica , Physics , Wolfram Language
3
REPLIES
17.1K
VIEWS

Experimenting with fun curve plots from Wolfram Alpha

QUESTION FROM: Fizixx :) | 12 years ago BY: Fizixx :)
Graphics and Visualization , Mathematica , Mathematics , ...
3
REPLIES
18.7K
VIEWS

SSH received a different Host Key while launching kernel

QUESTION FROM: Himura Kazuto | 12 years ago BY: Himura Kazuto
Raspberry Pi , Wolfram Language
3
REPLIES
9.7K
VIEWS

CYC-like World Model

CONTRIBUTED BY: Ed Pell | 12 years ago BY: Carl Lemp
Computer Science , Wolfram|Alpha , Wolfram Language
3
REPLIES
14.6K
VIEWS

Eukaryotic Cell From Scratch

QUESTION FROM: caters carrots | 12 years ago BY: Bruce Miller
Biological Sciences , Chemistry , Medical Sciences
3
REPLIES
12.9K
VIEWS

Have a complex calculus problem involving analytic expressions

QUESTION FROM: William Sinclair | 12 years ago BY: Isaac Abraham
Calculus , Mathematica , Wolfram Language
3
REPLIES
8.3K
VIEWS

Mathematica tries to evaluate numerical functions symbolically.

QUESTION FROM: David Golber | 12 years ago BY: Michael Gmirkin
Mathematica , Numerical Computation , Wolfram Language
3
REPLIES
12.3K
VIEWS

Equation Solving - Bug?

QUESTION FROM: Felix Feist | 12 years ago BY: Marco Thiel
Equation Solving , Mathematica , Tuning and Debugging , ...
3
REPLIES
6.2K
VIEWS

Using SplitString to get sub-string between 2 delimiters

QUESTION FROM: Bob Stephens | 12 years ago BY: Paul Cleary
Mathematica , Wolfram Language
3
REPLIES
4K
VIEWS

Understanding the use of Slot (#)

QUESTION FROM: Ana Squadri | 12 years ago BY: Bill Simpson
Mathematica , Wolfram Language
3
REPLIES
9.2K
VIEWS

Adding an implicitt Z axis below X axis

QUESTION FROM: Blake Stevison | 12 years ago BY: Sean Clarke
Graphics and Visualization , Mathematica , Wolfram Language
3
REPLIES
4K
VIEWS

Bug? Pochhammer, Gamma and FullSimplify gives a/a=2.

QUESTION FROM: Michael Woodhouse | 12 years ago BY: Sean Clarke
Mathematica , Mathematics , Wolfram Language
3
REPLIES
4K
VIEWS

Cubic Equation Demonstration

QUESTION FROM: Ana Squadri | 12 years ago BY: Ilian Gachevski
Computer Science , Mathematics
3
REPLIES
8K
VIEWS

After compilation, NDSolve and graph of energy don't run.

QUESTION FROM: Mark Turtsinskyi | 12 years ago BY: Mark Turtsinskyi
Calculus , Compilation , Mathematica , Wolfram Language
3
REPLIES
7.2K
VIEWS

Help with NDSolve inside Manipulate

QUESTION FROM: kritikaros kritikaros | 12 years ago BY: kritikaros kritikaros
Calculus , Dynamic Interactivity , Mathematica , Wolfram Language
3
REPLIES
5.1K
VIEWS

Remote kernel shuts down after several seconds

QUESTION FROM: Paul B | 12 years ago BY: Paul B
Mathematica , Operating System and Network Access , Product Set Up
3
REPLIES
8.7K
VIEWS

How to access Physical Constants in Mathematica 9.0?

QUESTION FROM: nick Granger-Brown | 12 years ago BY: nick Granger-Brown
Mathematica , Physics , Wolfram Language
3
REPLIES
16.5K
VIEWS

How to Generate Random Integers That Fits Into an Equation

QUESTION FROM: Onur Cagirici | 12 years ago BY: Marco Thiel
Mathematica , Mathematics , Wolfram Language
3
REPLIES
4.2K
VIEWS

Inverting dispersion relation

QUESTION FROM: Olivier Mathieu | 12 years ago BY: Ivan Morozov
Mathematica , Physics , Wolfram Language
3
REPLIES
4K
VIEWS

While or For to create many points on 1 graph with fewer lines of code?

QUESTION FROM: JM Ruby | 12 years ago BY: Szabolcs Horvát
Graphics and Visualization , Mathematica , Wolfram Language
3
REPLIES
5.4K
VIEWS

3D GeometricTransformation to primitives and export to STL?

QUESTION FROM: C ormullion | 12 years ago BY: Szabolcs Horvát
Graphics and Visualization , Mathematica , Wolfram Language
3
REPLIES
9.4K
VIEWS

Why doesn't RegionBinarize operate on an image with ColorProfileData ?

QUESTION FROM: Ed Komp | 12 years ago BY: Ed Komp
Image Processing , Mathematica , Wolfram Language
3
REPLIES
5.2K
VIEWS

plotting an array of dataset with ListPlot

QUESTION FROM: S Mazzu | 12 years ago BY: S Mazzu
Mathematica , Mathematics , Wolfram Language
3
REPLIES
7K
VIEWS

Can you check why I couldn't get the answer I want, what is wrong?

QUESTION FROM: michelle yrw | 12 years ago BY: Bill Simpson
Mathematica , Tuning and Debugging , Wolfram Language
3
REPLIES
4.9K
VIEWS

Eliminating jagged and inaccurate plots

QUESTION FROM: Bryan Lettner | 12 years ago BY: Bryan Lettner
Geometry , Graphics and Visualization , Image Processing , ...
3
REPLIES
8.8K
VIEWS

How to use Module with NSolve?

QUESTION FROM: A BC | 12 years ago BY: A BC
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
6.6K
VIEWS

Can Mathematica develop a funcionality to deploy CDF file generating HTML ?

QUESTION FROM: Ana Squadri | 12 years ago BY: Sergio Garcia
Computable Document Format , Software Development , Wolfram CDF Player
3
REPLIES
15.9K
VIEWS

Elimination of small values in expression

QUESTION FROM: Konstantin Nosov | 12 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematica
3
REPLIES
5.9K
VIEWS

How to differentiate a parametric plot

QUESTION FROM: Luther Nayhm | 12 years ago BY: Michael Rogers
Calculus , Graphics and Visualization , Mathematica
3
REPLIES
4.2K
VIEWS

Plotting function

QUESTION FROM: Massimo Verdi | 12 years ago BY: Bruce Miller
Graphics and Visualization , Mathematica
3
REPLIES
7.3K
VIEWS

Analyzing .mov video file for RGB color

QUESTION FROM: greenchic | 12 years ago BY: Jon Rogers
Image Processing , Mathematica , Signal Processing
3
REPLIES
12.8K
VIEWS

Question on the Covariance function in Mathematica

QUESTION FROM: Woo Young Kang | 12 years ago BY: Woo Young Kang
Mathematica , Statistics and Probability
3
REPLIES
5.9K
VIEWS

NIntegrate Error?

QUESTION FROM: Ryan Simone | 12 years ago BY: Ilian Gachevski
Calculus , Mathematica , Numerical Computation , Wolfram Language
3
REPLIES
4.6K
VIEWS

Subgraphs by neighbourhood

QUESTION FROM: Erik Itter | 12 years ago BY: Erik Itter
Graphs and Networks , Mathematica
3
REPLIES
7.7K
VIEWS

NDsolve solving for boundary condition

QUESTION FROM: Raphael Schlesinger | 12 years ago BY: David Keith
Mathematica
3
REPLIES
3K
VIEWS

Wolfram Community interface limitations on the iPad

QUESTION FROM: David Reiss | 12 years ago BY: Dan Newman
User Interface , Wolfram Community
3
REPLIES
9.6K
VIEWS

JDBC::error when connecting to local MySQL database

QUESTION FROM: Simon P. | 12 years ago BY: Simon P.
External Programs and Systems , Mathematica
3
REPLIES
10.9K
VIEWS
105
106
107
108
109

New Discussion New Discussion

Announcements Announcements

ANNOUNCEMENTS
Can you answer these questions?
READ FIRST: FORUM RULES »

Top Tags Top Tags

FEATURED GROUPS
Mathematics 6K discussions 4K subscriptions
Tuning and Debugging 241 discussions 338 subscriptions
Numerical Computation 1K discussions 1K subscriptions
Wolfram U 103 discussions 725 subscriptions
Equation Solving 1K discussions 1K subscriptions
Neural Networks 130 discussions 314 subscriptions
Wolfram Function Repository 226 discussions 231 subscriptions

FEATURED CONTRIBUTORS
jeffb
Jeffrey Bryant
18 hours ago
srodriguez
Sebastian Rodriguez
22 hours ago
rudnei
Rudnei Ramos
22 hours ago
bcbeckman
Brian Beckman
1 day ago
tigrannersissian
Tigran Nersissian
2 days ago
brunot
Bruno Tenorio
1 day ago
berejnov
Slava Berejnov
2 days ago