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NDSolve error when using an oscillatory forcing of ODE system.

QUESTION FROM: Giovanni Aloisi | 5 years ago BY: Giovanni Aloisi
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
4.6K
VIEWS

How to classify atoms in 3-dimensional space into molecules?

QUESTION FROM: Haobo Xia | 5 years ago BY: Haobo Xia
Chemistry , Data Science , Graphics and Visualization , ...
3
REPLIES
7.7K
VIEWS

Use variable Length[] in Solve[]?

QUESTION FROM: Ryan M | 5 years ago BY: John Doty
Equation Solving , Mathematics , Wolfram Language
3
REPLIES
6.3K
VIEWS

Fit a Piecewise function.

QUESTION FROM: MohammadTomal Hossain | 5 years ago BY: Jim Baldwin
Equation Solving , Graphics and Visualization , Mathematics , ...
3
REPLIES
5.5K
VIEWS

Speed up this curve fitting?

QUESTION FROM: Sean Bingus | 5 years ago BY: Sean Bingus
Chemistry , Mathematics , Physics , Wolfram Language
3
REPLIES
5.6K
VIEWS

Find the sum of Gaussian distribution and Nakagami distribution.

QUESTION FROM: Sagar Kavaiya | 5 years ago BY: Jim Baldwin
Mathematics , Statistics and Probability , Wolfram Language
3
REPLIES
8.4K
VIEWS

Find the equation of a bisector of two given points InfiniteLine[{p1, p2}]

QUESTION FROM: Julian Fernando | 5 years ago BY: Julian Fernando
Mathematics , Wolfram Language
3
REPLIES
3.9K
VIEWS

Plot a DifferentialRoot?

QUESTION FROM: Michal Jex | 5 years ago BY: Mariusz Iwaniuk
Equation Solving , Graphics and Visualization , Mathematics , ...
3
REPLIES
3.9K
VIEWS

Plot a WaveletScalogram?

QUESTION FROM: Alex Teymouri | 5 years ago BY: Henrik Schachner
Graphics and Visualization , Mathematics , Wolfram Language
3
REPLIES
3.9K
VIEWS

Assemble a solveable equation from a list?

QUESTION FROM: Paul Cleary | 5 years ago BY: Michael Helmle
Compilation , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
6.9K
VIEWS

Different results when using different representations of the same number?

QUESTION FROM: Jim Remington | 5 years ago BY: Updating Name
Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
3.2K
VIEWS

How to force FunctionExpand to work

QUESTION FROM: Leslaw Bieniasz | 5 years ago BY: Mariusz Iwaniuk
Calculus , Mathematics , Wolfram Language
3
REPLIES
4.2K
VIEWS

Create a HeavisidePi Plot

QUESTION FROM: omar awaisha | 5 years ago BY: Henrik Schachner
Engineering , Graphics and Visualization , Mathematics , ...
3
REPLIES
8.2K
VIEWS

[GIF] Fractal Flower of Life

CONTRIBUTED BY: Bryan Lettner | 5 years ago BY: Renay Oshop
Geometry , Graphics and Visualization , Graphs and Networks , ...
3
REPLIES
10.2K
VIEWS

Differences between u[x,y,t] vs. u[x,y][t] vs. u[x][y][t].

QUESTION FROM: Artin Hatzikioseyian | 5 years ago BY: Artin Hatzikioseyian
Equation Solving , Mathematics , Wolfram Language
3
REPLIES
7K
VIEWS

Find max value on the border of f[x,y]

QUESTION FROM: Peter Lahti | 5 years ago BY: W. Craig Carter
Optimization , Mathematics , Wolfram Language
3
REPLIES
5.8K
VIEWS

Un-able to interpret math results

QUESTION FROM: Walker Maddalozzo | 5 years ago BY: Daniel Lichtblau
Mathematica , Mathematics , Wolfram|Alpha , Wolfram Language
3
REPLIES
3.9K
VIEWS

[Notebook] Genome analysis and the SARS-CoV-2

CONTRIBUTED BY: Daniel Lichtblau | 5 years ago BY: Daniel Lichtblau
Staff Picks , Biological Sciences , Chemistry , Data Science , ...
3
REPLIES
17.2K
VIEWS

How do I tell WolframAlpha which variables are real and which are natural?

QUESTION FROM: Aaron S | 5 years ago BY: M23 J
Mathematics , Wolfram|Alpha
3
REPLIES
44K
VIEWS

Increase efficiency of cellular automaton and combine values in datasets

QUESTION FROM: Jon Rickett | 5 years ago BY: Jon Rickett
Mathematics , Wolfram Language , Wolfram Science
3
REPLIES
5.4K
VIEWS

"Equations may not give solutions for all 'solve' variables" w/ Solve

QUESTION FROM: Eric 206 | 5 years ago BY: Daniel Lichtblau
Equation Solving , Mathematics , Wolfram Language
3
REPLIES
4.4K
VIEWS

How does one represent a hypothetical operation in Wolfram Alpha?

QUESTION FROM: Dave Weaver | 5 years ago BY: Nathan Shpritz
Mathematics
3
REPLIES
7.9K
VIEWS

Plane 3D Plotting range values

QUESTION FROM: Manoj Imrith | 5 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Geometry , Graphics and Visualization , ...
3
REPLIES
6.1K
VIEWS

Minimize a function using the results from NDSolve

QUESTION FROM: Yz Wu | 5 years ago BY: Gianluca Gorni
Equation Solving , Optimization , Mathematics , ...
3
REPLIES
5.3K
VIEWS

Solve differential equations with boundary conditions

QUESTION FROM: Diego Tosano | 5 years ago BY: Diego Tosano
Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
7K
VIEWS

Extracting Data from BodePlot

QUESTION FROM: Lucas Mendonça | 5 years ago BY: David Keith
Control Systems , Engineering , Graphics and Visualization , ...
3
REPLIES
7.5K
VIEWS

Arrange Playing Cards for Phone Number with MaTeX

CONTRIBUTED BY: Shenghui Yang | 5 years ago BY: Szabolcs Horvát
Staff Picks , Discrete Mathematics , Game Development , ...
3
REPLIES
14.1K
VIEWS

Using the "D" command to take derivatives and then apply variable values

QUESTION FROM: Mitchell Sandlin | 5 years ago BY: Gianluca Gorni
Mathematics , Wolfram Language
3
REPLIES
8.5K
VIEWS

Compute a PDE with boundary conditions?

QUESTION FROM: William Troy | 5 years ago BY: Anonymous User
Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
4K
VIEWS

Set the number of digits after decimal in outputs?

QUESTION FROM: Purnima singh | 5 years ago BY: Gianluca Gorni
Mathematics , Wolfram Language
3
REPLIES
4.8K
VIEWS

Is it possible to detailed working of problem from Mathematica

QUESTION FROM: John Bartlett | 5 years ago BY: Anonymous User
Mathematica , Mathematics
3
REPLIES
6.9K
VIEWS

COVID19 in Iran: under-diagnosis issue

CONTRIBUTED BY: Mohammad Bahrami | 5 years ago BY: Mohammad Bahrami
Staff Picks , Biological Sciences , Chemistry , Data Science , ...
3
REPLIES
11.4K
VIEWS

[✓] Calculate a double sum?

QUESTION FROM: Giovanni Affatato | 5 years ago BY: Updating Name
Mathematics , Wolfram Language
3
REPLIES
3.1K
VIEWS

Coronavirus logistic growth model: China

CONTRIBUTED BY: Robert Rimmer | 5 years ago BY: Robert Rimmer
Staff Picks , Biological Sciences , Data Science , ...
3
REPLIES
14.9K
VIEWS

Solve nonlinear numerical differential equations with several variables?

QUESTION FROM: C. H. | 5 years ago BY: C. H.
Calculus , Mathematics , Numerical Computation , Physics , ...
3
REPLIES
3.9K
VIEWS

Errors in defining variables (binary) and equalitites

QUESTION FROM: Wael Al Hajailan | 5 years ago BY: Bill Nelson
Optimization , Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
5.2K
VIEWS

Calculate the mean curvature and normal vector of a surface?

QUESTION FROM: Meryem Aslı | 5 years ago BY: Hans Dolhaine
Calculus , Geometry , Mathematics , Wolfram Language
3
REPLIES
5.4K
VIEWS

Impression of the Kaprekar´s routine with 5, 6, 7 and 8 digit numbers

CONTRIBUTED BY: Claudio Chaib | 5 years ago BY: EDITORIAL BOARD
Staff Picks , Data Science , Discrete Mathematics , ...
3
REPLIES
15K
VIEWS

Plot the following expression according to the given constants?

QUESTION FROM: Mr Suma | 5 years ago BY: Bill Nelson
Engineering , Graphics and Visualization , Mathematics , Optics , ...
3
REPLIES
6.2K
VIEWS

Solve the following nonlinear parabolic PDE with DSolve?

QUESTION FROM: Fabi An | 5 years ago BY: Anonymous User
Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
6.8K
VIEWS

Solve symbolic cubic equation and select specific solution

QUESTION FROM: Bernd Sprenger | 5 years ago BY: Updating Name
Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
7.1K
VIEWS

Differential equation with trascendental solution

QUESTION FROM: Leonardo Flores-Torres | 5 years ago BY: Neil Singer
Equation Solving , Graphics and Visualization , Mathematics , ...
3
REPLIES
3.4K
VIEWS

Use piecewise parameters in NDSolve

QUESTION FROM: Abed Alnaif | 5 years ago BY: Abed Alnaif
Engineering , Equation Solving , Mathematics , Modeling , ...
3
REPLIES
5.5K
VIEWS

Summable Areas

CONTRIBUTED BY: Shenghui Yang | 5 years ago BY: EDITORIAL BOARD
Staff Picks , Computer-Based Maths , Dynamic Interactivity , ...
3
REPLIES
12.9K
VIEWS

Subtract a list from a list?

QUESTION FROM: Keito Tanemura | 5 years ago BY: Sjoerd Smit
Mathematics , Wolfram Language
3
REPLIES
7.8K
VIEWS

Solve 1D heat equation with a non-initial/boundary condition?

QUESTION FROM: C H | 5 years ago BY: Hans Dolhaine
Equation Solving , Mathematics , Numerical Computation , Physics , ...
3
REPLIES
5.4K
VIEWS

[?] Make the following conditions more compact?

QUESTION FROM: Keito Tanemura | 5 years ago BY: Hans Milton
Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
4.5K
VIEWS

Velocity unit after NBodySimulation calculation?

QUESTION FROM: Paulina Jelonek | 6 years ago BY: Paulina Jelonek
Astronomy , Curated Data , Mathematics , Modeling , Physics , Units , ...
3
REPLIES
6.6K
VIEWS

How to speed up NDSolve when there are ~400k equations?

QUESTION FROM: Lammond Wan | 6 years ago BY: Lammond Wan
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
6.2K
VIEWS

Solve an equation involving partial derivative?

QUESTION FROM: Karthi Govindasamy | 6 years ago BY: Hans Dolhaine
Equation Solving , Mathematics , Wolfram Language
3
REPLIES
3.3K
VIEWS

Create a thread from two random arrays of elements?

QUESTION FROM: S G | 6 years ago BY: Hans Dolhaine
Mathematics , Wolfram Language
3
REPLIES
5.1K
VIEWS

Problem with Interdependent Variables in Coordinate System Demonstration

QUESTION FROM: Zachary Cline | 6 years ago BY: Zachary Cline
Algebra , Calculus , Dynamic Interactivity , Mathematics , ...
3
REPLIES
9.5K
VIEWS

[?] Reduced Row Echelon form

QUESTION FROM: Bert Aerts | 6 years ago BY: Daniel Lichtblau
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
8.1K
VIEWS

Conduct a Breusch Pagan test for a multiple regression?

QUESTION FROM: Nora M | 6 years ago BY: Capora Allin
Mathematics , Statistics and Probability , Wolfram Language
3
REPLIES
7.3K
VIEWS

Interpolation of function of two variables over very large range

QUESTION FROM: Fabrizio Rompineve | 6 years ago BY: Hans Dolhaine
Data Science , Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
6.2K
VIEWS

Convert a Number to Binary

QUESTION FROM: Aryan Deshpande | 6 years ago BY: Rohit Namjoshi
Mathematics , Wolfram Language
3
REPLIES
5.9K
VIEWS

[?] Select certain elements of sublists of a list

QUESTION FROM: Laurens Wachters | 6 years ago BY: Laurens Wachters
Mathematics , Wolfram Language
3
REPLIES
8.2K
VIEWS

Find matrix location of the nearest point?

QUESTION FROM: Xiaxing Xiong | 6 years ago BY: Rohit Namjoshi
Optimization , Mathematics , Wolfram Language
3
REPLIES
5.5K
VIEWS

Find the right angle of a shot (SNOOKER)

QUESTION FROM: Hans Dolhaine | 6 years ago BY: Henrik Schachner
Dynamic Interactivity , Graphics and Visualization , Mathematics , ...
3
REPLIES
6.3K
VIEWS

Compute the multifractal spectrum by the wavelet leaders

CONTRIBUTED BY: Guillaume Saës | 6 years ago BY: Ayoub Ltifi
Mathematics , Physics , Signal Processing , ...
3
REPLIES
15.6K
VIEWS

Comparing Benford's Law to File Sizes

CONTRIBUTED BY: Jon McLoone | 6 years ago BY: Rohit Namjoshi
Staff Picks , Data Science , Discrete Mathematics , ...
3
REPLIES
11.3K
VIEWS

Calculate and plot Fourier spectrum using W|A?

QUESTION FROM: Jeffrey Love | 6 years ago BY: Daniel Lichtblau
Mathematics , Signal Processing , Wavelets and Fourier Series , ...
3
REPLIES
9.6K
VIEWS

Solve a hypergeometric ODE NDSolve?

QUESTION FROM: Brad Klee | 6 years ago BY: Brad Klee
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
5.3K
VIEWS

Biodiversity: The Computational Pumpkin

CONTRIBUTED BY: Jofre Espigule-Pons | 6 years ago BY: EDITORIAL BOARD
Staff Picks , 3D Printing , Biological Sciences , Curated Data , ...
3
REPLIES
15.1K
VIEWS

Laplace transformation step by step

QUESTION FROM: Davide Orsenigo | 6 years ago BY: Daniel Lichtblau
Calculus , Mathematics , Wolfram|Alpha , Wolfram Language
3
REPLIES
6.9K
VIEWS

[WSS18] A Game Theory Package for the Wolfram Language

CONTRIBUTED BY: Valeriu Ungureanu | 6 years ago BY: Christos Papahristodoulou
Staff Picks , Computer Science , Dynamic Interactivity , Education , ...
3
REPLIES
23.1K
VIEWS

Why two optimization problems lead to different results by "MaximalBy"

QUESTION FROM: Shaoyan Robert | 6 years ago BY: Neil Singer
Optimization , Mathematics , Operations Research , Wolfram Language
3
REPLIES
8.6K
VIEWS

Assign numbers to functions in order?

QUESTION FROM: Keito Tanemura | 6 years ago BY: Keito Tanemura
Calculus , Mathematics , Wolfram Language
3
REPLIES
3.8K
VIEWS

Avoid different solutions of two equivalent systems of equations?

QUESTION FROM: Jacques Ou | 6 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
4.4K
VIEWS

Obtain the conversion of Gamma function?

QUESTION FROM: Jacques Ou | 6 years ago BY: Jacques Ou
Calculus , Mathematics , Wolfram Language
3
REPLIES
5.4K
VIEWS

How to define the following matrix like the following?

QUESTION FROM: Licheng Zhang | 6 years ago BY: J. M.
Mathematics , Wolfram Language
3
REPLIES
6.9K
VIEWS

Trying to run a Manipulate function

QUESTION FROM: DJ Seaton | 6 years ago BY: Rohit Namjoshi
Calculus , Mathematica , Mathematics
3
REPLIES
3.8K
VIEWS

[?] Copy smallest positive roots (complex number) from the analysis?

QUESTION FROM: vin Bha | 6 years ago BY: vin Bha
Mathematics , Wolfram Language
3
REPLIES
4.6K
VIEWS

[?] Avoid problem with Interpolation function for higher order derivatives?

QUESTION FROM: Rui Ma | 6 years ago BY: Daniel Lichtblau
Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
5K
VIEWS

Calculate a specific define integral using Jacobi-Anger expansion?

QUESTION FROM: Jorge Caicedo | 6 years ago BY: Mariusz Iwaniuk
Calculus , Mathematics , Wolfram Language
3
REPLIES
6.7K
VIEWS

[?] Store vectors as columns of a matrix?

QUESTION FROM: Jaime de la Mota | 6 years ago BY: Neil Singer
Data Science , Mathematics , Wolfram Language
3
REPLIES
3.9K
VIEWS

Perform gradient descend for the function of two variables?

QUESTION FROM: Alex Graham | 6 years ago BY: Alex Graham
Optimization , Mathematics , Wolfram Language
3
REPLIES
6.6K
VIEWS

Plot the solution of the following integral?

QUESTION FROM: Nathan Dice | 6 years ago BY: Bill Nelson
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
3
REPLIES
6.3K
VIEWS

Solve equality involving Euler's angles?

QUESTION FROM: S G | 6 years ago BY: Michael Helmle
Equation Solving , Geometry , Mathematics , Wolfram Language
3
REPLIES
6.5K
VIEWS

[?] Force Manipulate[] outputs to be reals instead of complex numbers?

QUESTION FROM: Dave Markham | 6 years ago BY: Dave Markham
Calculus , Dynamic Interactivity , Mathematics , ...
3
REPLIES
8.2K
VIEWS

Solve definite integrals split into two integrals?

QUESTION FROM: Alessandra Buratto | 6 years ago BY: Alessandra Buratto
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
4.1K
VIEWS

Solve matrix equation for a particular variable parameter?

QUESTION FROM: Urban Gramc | 6 years ago BY: Hans Dolhaine
Equation Solving , Mathematics , Wolfram Language
3
REPLIES
9K
VIEWS

Plot a density plot in 3D with data points as {x, y, z, F[x,y,z]}?

QUESTION FROM: S G | 6 years ago BY: S G
Graphics and Visualization , Mathematics , Wolfram Language
3
REPLIES
7.4K
VIEWS

How to solve complex simultaneous equations in mathematica?

QUESTION FROM: Karthik Subramaniam | 6 years ago BY: Karthik Subramaniam
Mathematics
3
REPLIES
10.4K
VIEWS

Find the solution of Det[Matrix]==0?

QUESTION FROM: vineet singh | 6 years ago BY: Kumar Virbhadra
Equation Solving , Mathematics , Wolfram Language
3
REPLIES
3.5K
VIEWS

Integration over polyhedral region

QUESTION FROM: Sam M | 6 years ago BY: Mariusz Iwaniuk
Calculus , Geometry , Mathematics , Numerical Computation , ...
3
REPLIES
6K
VIEWS

Unable to render an explicit GeometricScene containing a Circle

QUESTION FROM: Tim Laska | 6 years ago BY: Dan McDonald
Geometry , Graphics and Visualization , Mathematica , Mathematics , ...
3
REPLIES
6.9K
VIEWS

[WSS19] Evolving randomly generated programs

CONTRIBUTED BY: Carlos Muñoz | 6 years ago BY: Carlos Muñoz
Biological Sciences , Computer Science , Data Science , ...
3
REPLIES
10.4K
VIEWS

Format output of a matrix?

QUESTION FROM: Nehal Elshaboury | 6 years ago BY: Nehal Elshaboury
Mathematics , Wolfram Language
3
REPLIES
5.1K
VIEWS

[?] Generate discrete 3d plots for magnetic field lines?

QUESTION FROM: Hong-Yee Chiu | 6 years ago BY: Hong-Yee Chiu
Graphics and Visualization , Mathematics , Physics , Wolfram Language
3
REPLIES
4.9K
VIEWS

How do I put patterns as option for a function?

QUESTION FROM: Claudio Chaib | 6 years ago BY: Henrik Schachner
Mathematics , Wolfram Language
3
REPLIES
4.5K
VIEWS

Use the output of the Normal function as input to a function def?

QUESTION FROM: Karl Petersen | 6 years ago BY: Daniel Lichtblau
Calculus , Mathematics , Symbolic Computations , Wolfram Language
3
REPLIES
3.5K
VIEWS

Calculate this expression with Bessel functions?

QUESTION FROM: Jacques Ou | 6 years ago BY: Daniel Lichtblau
Calculus , Mathematics , Symbolic Computations , Wolfram Language
3
REPLIES
4.6K
VIEWS

[?] Solve an equation with a constraint?

QUESTION FROM: Alex Graham | 6 years ago BY: Mariusz Iwaniuk
Equation Solving , Mathematics , Wolfram Language
3
REPLIES
6.6K
VIEWS

Graphically solve a system of equations and plot them in R^3?

QUESTION FROM: Filip Fornell | 6 years ago BY: Filip Fornell
Equation Solving , Graphics and Visualization , Mathematics , ...
3
REPLIES
4.8K
VIEWS

[?] Implement a flat right interpolation?

QUESTION FROM: Tarpanelli Paolo | 6 years ago BY: Tarpanelli Paolo
Mathematics , Wolfram Language
3
REPLIES
5.8K
VIEWS

How factorInteger[n] is designed?

QUESTION FROM: Ramez Hindi | 6 years ago BY: Mariusz Iwaniuk
Mathematics , Wolfram Language
3
REPLIES
2.8K
VIEWS

Analytically solve partial differential equation?

QUESTION FROM: Gaurav Kumar | 6 years ago BY: Gaurav Kumar
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
4.3K
VIEWS

Simplify this equation in terms of function and coefficients?

QUESTION FROM: Mirza Farrukh Baig | 6 years ago BY: Mirza Farrukh Baig
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
7.2K
VIEWS

Calculate an inverse Laplace transform?

QUESTION FROM: Leslaw Bieniasz | 6 years ago BY: Mariusz Iwaniuk
Calculus , Mathematics , Wolfram Language
3
REPLIES
5.4K
VIEWS
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