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Classical and quantum mechanics, electricity and magnetism, thermodynamics, high-energy and particle physics, condensed matter physics, biophysics.... Astronomy and optics are separate categories.

Discussions List Discussions List

Confused about ReleaseHold & Defer

QUESTION FROM: T Saab | 13 years ago BY: EDITORIAL BOARD
Computable Document Format , Demonstrations , Mathematica , Physics , ...
1
REPLIES
15.9K
VIEWS

Problems with system of PDE's

QUESTION FROM: Josh Napolitano | 13 years ago BY: Frank Kampas
Mathematica , Mathematics , Physics
4
REPLIES
4.3K
VIEWS

Possible to model crystal growth with cellular automata?

QUESTION FROM: Katherine Derbyshire | 1 year ago BY: Updating Name
Material Sciences , Mathematica , Physics , Wolfram Science
7
REPLIES
24.8K
VIEWS

SystemModeler Failed to reduce the DAE index. What do I do now?

QUESTION FROM: nick Granger-Brown | 13 years ago BY: nick Granger-Brown
Engineering , Physics , SystemModeler
3
REPLIES
18.8K
VIEWS

defining an implicit function

QUESTION FROM: Iuval Clejan | 13 years ago
Physics
0
REPLIES
6.5K
VIEWS

Simplifying visualization of VectorPlot3D

QUESTION FROM: Phil Ngo | 13 years ago BY: maryam fathi.s
Graphics and Visualization , Mathematica , Mathematics , Physics
2
REPLIES
10.3K
VIEWS

Animating a racecar go around the track

QUESTION FROM: Megan Vineyard | 13 years ago BY: EDITORIAL BOARD
Dynamic Interactivity , Mathematica , Physics , Wolfram Language
1
REPLIES
8.1K
VIEWS

Integration in reals of orbitals not working as expected: ensuring reals ?

QUESTION FROM: Patrick Bultinck | 13 years ago BY: Bill Simpson
Calculus , Mathematica , Mathematics , Physics , Wolfram Language
3
REPLIES
4.4K
VIEWS

Help needed with code optimization in Manipulate

QUESTION FROM: Luca M | 13 years ago BY: Luca M
Dynamic Interactivity , Graphics and Visualization , Mathematica , ...
7
REPLIES
17.8K
VIEWS

Plotting function involving derivative of Abs(x)

QUESTION FROM: Patrick Bultinck | 13 years ago BY: Patrick Bultinck
Mathematica , Mathematics , Physics
3
REPLIES
7.3K
VIEWS

How to export an animation for a numerically solved system

QUESTION FROM: Lucas Morales | 13 years ago BY: Sam Carrettie
Dynamic Interactivity , Graphics and Visualization , ...
6
REPLIES
10.1K
VIEWS

Plotting the pressure vs number of particles in a box

QUESTION FROM: Megan Vineyard | 13 years ago BY: Sean Clarke
Graphics and Visualization , Mathematica , Physics
1
REPLIES
4.4K
VIEWS

How to implement a formal expectation operator over an unknown distribution

QUESTION FROM: Sune Jespersen | 13 years ago BY: Sune Jespersen
Calculus , Mathematica , Mathematics , Physics
8
REPLIES
14K
VIEWS

How well can Mathematica do multivariate intergrating

QUESTION FROM: Mr Burns | 13 years ago BY: Bruce Miller
Mathematics , Physics , Signal Processing
3
REPLIES
9.6K
VIEWS

How loud can 22,000 cell phones be?

QUESTION FROM: Ed Pegg | 13 years ago BY: Sander Huisman
Physics
1
REPLIES
3.8K
VIEWS

incorrect calculation of Log[Exp[...]]

QUESTION FROM: ChiaWei Tu | 13 years ago BY: Sean Clarke
Mathematica , Mathematics , Physics
1
REPLIES
3.7K
VIEWS

How to use tensors in Mathematica?

QUESTION FROM: Ji?í Ryzner | 6 months ago BY: Marty Parts
Physics
8
REPLIES
13.7K
VIEWS

A graphical solution of two equations is possible. Numerically, too?

QUESTION FROM: Niels Nutzer | 13 years ago BY: Frank Kampas
Algebra , Equation Solving , Mathematica , Mathematics , ...
3
REPLIES
7.1K
VIEWS

Finding the actual wind power at a location for a given period?

QUESTION FROM: Daniel Connell | 10 years ago BY: Nicholas Teague
Environmental Science , Mathematics , Numerical Computation , ...
5
REPLIES
25.4K
VIEWS

How to plot {x,y,z,i} data?

QUESTION FROM: Anna Regoutz | 13 years ago BY: Darya Aleinikava
Chemistry , Graphics and Visualization , Mathematica , Physics
10
REPLIES
24.9K
VIEWS

How to solve Wave Equation numerically?

QUESTION FROM: Matthias Redies | 13 years ago BY: EDITORIAL BOARD
Calculus , Equation Solving , Mathematica , Mathematics , ...
2
REPLIES
10.3K
VIEWS

Comparative Statics - System of Equations

QUESTION FROM: Tom G | 13 years ago BY: Tom G
Calculus , Economics , Mathematica , Mathematics , ...
3
REPLIES
13K
VIEWS

How to choose starting point for FindMinimum

QUESTION FROM: Cory Leahy | 13 years ago BY: Cory Leahy
Chemistry , Mathematica , Mathematics , Physics
5
REPLIES
12.3K
VIEWS

Creating a line graph using the Manipulate command.

QUESTION FROM: Megan Vineyard | 13 years ago BY: Bruce Miller
Mathematics , Physics
1
REPLIES
4.3K
VIEWS

How to plot a densityfunction with filling for signifigance levels?

QUESTION FROM: Dominic G | 13 years ago BY: Dominic G
Authoring and Publishing , Business Analytics , Economics , Finance , ...
3
REPLIES
13.9K
VIEWS

use of the $ symbol

QUESTION FROM: Luis Ledesma | 13 years ago BY: Jari Kirma
Authoring and Publishing , Computer Science , Data Science , ...
4
REPLIES
19K
VIEWS

Functional Programming for Non-linear Equations

QUESTION FROM: Pat Mac | 13 years ago BY: Pat Mac
Biological Sciences , Chemistry , High-Performance Computing , ...
4
REPLIES
20.8K
VIEWS

Integral upper limit a function

QUESTION FROM: Luther Nayhm | 13 years ago BY: Luther Nayhm
Calculus , Mathematica , Physics
6
REPLIES
13.2K
VIEWS

Newton-Raphson Root Finding, Difficulty in coding

QUESTION FROM: Cory Leahy | 13 years ago BY: Jari Kirma
Mathematics , Physics , Wolfram Language
4
REPLIES
9.2K
VIEWS

Autocorrelation Method

QUESTION FROM: azmi almasalha | 13 years ago BY: azmi almasalha
Mathematica , Optics , Physics
4
REPLIES
13.4K
VIEWS

Fitting a function - the result of a NDSolve

QUESTION FROM: Elwood Blues | 13 years ago BY: Bruce Miller
Computer Science , Data Science , Education , Material Sciences , ...
1
REPLIES
17.6K
VIEWS

How to create a drawing pad in Mathematica?

QUESTION FROM: Boris Blankleider | 13 years ago BY: Vitaliy Kaurov
Dynamic Interactivity , Graphics and Visualization , ...
7
REPLIES
17.4K
VIEWS

Generate weighted random numbers

QUESTION FROM: Michael Knoerzer | 3 years ago BY: Jari Kirma
Data Science , Mathematica , Mathematics , Physics , ...
13
REPLIES
17.1K
VIEWS

How to erase column in a Map[Flatten[#] & command

QUESTION FROM: Maria Giovanna Dainotti | 13 years ago BY: Youngjoo Chung
Astronomy , Mathematics , Physics
3
REPLIES
13.1K
VIEWS

Numerical and Analytic plots don't overlap.

QUESTION FROM: Davi Dantas | 13 years ago BY: Davi Dantas
Graphics and Visualization , Mathematica , Numerical Computation , ...
2
REPLIES
4.1K
VIEWS

How to solve a highly nonlinear PDE

QUESTION FROM: Yiyang Zhang | 13 years ago BY: Sean Clarke
Equation Solving , Mathematica , Mathematics , ...
4
REPLIES
6.8K
VIEWS

Help plotting error function

QUESTION FROM: Megan Vineyard | 13 years ago BY: Bill Simpson
Graphics and Visualization , Mathematica , Physics
2
REPLIES
7.1K
VIEWS

Hodgkin-Huxley cable equation or propogation equation

QUESTION FROM: Jake Trexel | 13 years ago BY: Jake Trexel
Biological Sciences , Equation Solving , Mathematics , Physics , ...
18
REPLIES
29.4K
VIEWS

Finding time it will take an object to move from point a to point b

QUESTION FROM: Alan Suum | 13 years ago BY: Gregory Fridman
Computer Science , Graphics and Visualization , Mathematica , ...
1
REPLIES
7.8K
VIEWS

How to solve a system of Non-linear equations

QUESTION FROM: Marcelo De Cicco | 12 years ago BY: Marcelo De Cicco
Mathematica , Physics
19
REPLIES
17.8K
VIEWS

InverseLaplaceTransform

QUESTION FROM: Sylvain Rousseau | 13 years ago BY: Sylvain Rousseau
Mathematica , Physics , Symbolic Computations
2
REPLIES
6.7K
VIEWS

How to extract the position of a minimum value in a vector or a Matrix

QUESTION FROM: Raffaele Santagati | 13 years ago BY: Jeremy Michelson
Mathematica , Mathematics , Physics
2
REPLIES
11.9K
VIEWS

Looking for a function to norm a Polar Plot

QUESTION FROM: Peter Parker | 13 years ago BY: Youngjoo Chung
Audio, Sound and Music , Mathematica , Physics
23
REPLIES
12.5K
VIEWS

Solve does not work this Lagrangian function

QUESTION FROM: Glenn F | 13 years ago BY: Glenn F
Mathematica , Physics
2
REPLIES
4.2K
VIEWS

Singularity problem in “NDSolve” in Mathematica

QUESTION FROM: moumita das | 13 years ago BY: Frank Kampas
Equation Solving , Mathematica , Physics
3
REPLIES
21.2K
VIEWS

Optimal lighting configuration of 5 lamps in a square room

QUESTION FROM: Todd Rowland | 13 years ago BY: Todd Rowland
Architecture , Challenges , Engineering , Mathematics , Optics , ...
12
REPLIES
44.5K
VIEWS

Question about Fourier Coefficents

QUESTION FROM: Ke Zheng | 13 years ago BY: Udo Krause
Mathematics , Mechanical Engineering , Optics , Physics
3
REPLIES
14.9K
VIEWS

Simulating mechanics of a cylinder rolling on a parabola

QUESTION FROM: Jef Barthe | 13 years ago BY: Erik Mahieu
Engineering , Mathematica , Physics , SystemModeler
12
REPLIES
41.2K
VIEWS

Combine Plot Graphics

QUESTION FROM: Simon Tyran | 13 years ago BY: Narasimham gudipaty
Astronomy , Data Science , Image Processing , Mathematics , Physics , ...
3
REPLIES
15.8K
VIEWS

Solving a complex ODE with NDSOLVE

QUESTION FROM: Panagiotis Karampourniotis | 13 years ago BY: Panagiotis Karampourniotis
Engineering , Mathematica , Physics
4
REPLIES
8.6K
VIEWS

Efficiently tabulating system of coupled ODEs for NDSolve

QUESTION FROM: Nick Pizzo | 13 years ago BY: Nick Pizzo
Mathematica , Modeling , Numerical Computation , Physics , ...
2
REPLIES
10.1K
VIEWS

Expressing numbers in fortran form

QUESTION FROM: Jesse Kanter | 13 years ago BY: David Reiss
Mathematica , Mathematics , Physics
5
REPLIES
5.1K
VIEWS

How to find Laplace Transform

QUESTION FROM: John G | 13 years ago BY: John G
Mathematics , Physics , Wolfram Language
2
REPLIES
15.9K
VIEWS

Manipulating NDSolve to output the time at a certain value of 'y'

QUESTION FROM: Varderes Barsegyan | 13 years ago BY: Ilian Gachevski
Biological Sciences , Calculus , Mathematica , Mathematics , Physics
8
REPLIES
9.2K
VIEWS

Use of dummy variables in double integrals

QUESTION FROM: T Saab | 13 years ago BY: T Saab
Mathematica , Numerical Computation , Physics , Wolfram Language
3
REPLIES
9.7K
VIEWS

Numerical fitting to model that has Integral with no analytical solution

QUESTION FROM: Nick D | 13 years ago BY: Nick D
Calculus , Data Science , Engineering , Material Sciences , ...
3
REPLIES
17.2K
VIEWS

How to match length in ToString

QUESTION FROM: kri physics | 13 years ago BY: Christopher French
Mathematics , Physics
2
REPLIES
6.4K
VIEWS

Solve differential equation to describe the motion of simple pendulum

QUESTION FROM: Julian Lovlie | 9 years ago BY: Javier Gonzalez-Rocha
Engineering , Mathematica , Physics
7
REPLIES
23.9K
VIEWS

Von Neumann equation

QUESTION FROM: Thomas Harty | 13 years ago BY: Thomas Harty
Physics
5
REPLIES
10.4K
VIEWS

Plotting Hermite-Gaussian polynomial for Gaussian beams

QUESTION FROM: seongwoo oh | 13 years ago BY: Vitaliy Kaurov
Image Processing , Mathematica , Physics
1
REPLIES
11.5K
VIEWS

Equation of a line intersepting two planes

QUESTION FROM: Chinthaka Ratnaweera | 13 years ago BY: Udo Krause
Mathematics , Physics
4
REPLIES
4.3K
VIEWS

Quantity[] expression entry

QUESTION FROM: Orest Gogosha | 13 years ago BY: Orest Gogosha
Mathematica , Physics
2
REPLIES
7.4K
VIEWS

Advice on Wolfram Products for my website

QUESTION FROM: sihle mgobozi | 13 years ago BY: sihle mgobozi
Algebra , Calculus , Chemistry , Demonstrations , Mathematics , ...
3
REPLIES
19K
VIEWS

Block-diagonalization of a real skew-symmetric matrix

QUESTION FROM: Luca Taddia | 13 years ago BY: Luca Taddia
Mathematica , Mathematics , Physics
8
REPLIES
19K
VIEWS

Parametric force visualization

QUESTION FROM: Kristian Clark | 13 years ago BY: Vitaliy Kaurov
Graphics and Visualization , Mathematics , Physics
3
REPLIES
4.6K
VIEWS

While loop syntax in Mathematica 9

QUESTION FROM: Cole Pierson | 13 years ago BY: Richard Hennigan
Aerospace Engineering , Calculus , Engineering , Mathematica , ...
2
REPLIES
15.9K
VIEWS

Importing File Sequence in Mathematica

QUESTION FROM: P Aung | 13 years ago BY: P Aung
Graphics and Visualization , Material Sciences , Mathematica , Physics
2
REPLIES
11K
VIEWS

Plotting data from simulation of springs with masses

QUESTION FROM: sean roubion | 13 years ago BY: Vitaliy Kaurov
Graphics and Visualization , Mathematica , Physics
4
REPLIES
13.6K
VIEWS

Graphics 3D, Rendering, Animation, and Physics

QUESTION FROM: Russell Hart | 13 years ago BY: Markus Schopfer
Computer Science , Game Development , Image Processing , ...
1
REPLIES
14.8K
VIEWS

Numerical solution for non linear Klein Gordon equation in 3+1 dimensions

QUESTION FROM: Arnab Kar | 13 years ago BY: Arnab Kar
Mathematica , Mathematics , Numerical Computation , Physics , ...
6
REPLIES
12.8K
VIEWS

Extracting data from images of spectral plots generated by SDBS

QUESTION FROM: Darya Aleinikava | 13 years ago BY: Szabolcs Horvát
Chemistry , Graphics and Visualization , Image Processing , ...
3
REPLIES
14.7K
VIEWS
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