Group Abstract Group Abstract

«Groups
Numerical Computation
Join
Numeric equation solving, calculus and statistics, precision and accuracy control for numeric computations...

Discussions List Discussions List

Add Neumann boundary conditions to seepage analysis

QUESTION FROM: edison0613 | 3 years ago BY: xzczd 　
Calculus , Civil Engineering , Equation Solving , ...
1
REPLIES
6.3K
VIEWS

How to use Module with NSolve?

QUESTION FROM: A BC | 11 years ago BY: A BC
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
6.3K
VIEWS

ParametricRegions from Interpolation functions

QUESTION FROM: Christopher Purcell | 11 years ago BY: Bruce Miller
Geometry , Mathematica , Numerical Computation , Wolfram Language
1
REPLIES
6.3K
VIEWS

Computation precision

QUESTION FROM: Stefan Scheiner | 10 years ago BY: Sander Huisman
Numerical Computation , Wolfram Language
2
REPLIES
6.3K
VIEWS

How does Mathematica perform numerical calculations?

QUESTION FROM: Luther Nayhm | 10 years ago BY: Daniel Lichtblau
Calculus , Mathematica , Mathematics , Numerical Computation
5
REPLIES
6.3K
VIEWS

Tsunamis Program on Page 129, Mathematics Beyond Mathematica

QUESTION FROM: Samuel Kohn | 7 years ago BY: Samuel Kohn
Calculus , Dynamic Interactivity , Equation Solving , ...
4
REPLIES
6.3K
VIEWS

FindMaximum huge divergence from expected results

QUESTION FROM: Henry Banks | 11 years ago BY: Bill Simpson
Equation Solving , Mathematica , Numerical Computation , ...
3
REPLIES
6.3K
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
6.3K
VIEWS

Function like NDEigensystem, but to find eigenvalues of larger magnitude?

QUESTION FROM: Austin B | 8 years ago
Calculus , Equation Solving , Graphics and Visualization , ...
0
REPLIES
6.3K
VIEWS

Computational geometry in Mathematica

QUESTION FROM: Jan Baetens | 12 years ago BY: Nicholas Lucas
Geometry , Mathematica , Modeling , Numerical Computation
1
REPLIES
6.2K
VIEWS

Taking Derivatives of Experimental Data

QUESTION FROM: A Johnson | 11 years ago BY: David Reiss
Calculus , Mathematica , Numerical Computation , Physics
5
REPLIES
6.2K
VIEWS

Numerical Integration, FEM application

QUESTION FROM: Amir Delgoshaie | 11 years ago BY: Bill Simpson
Calculus , Engineering , Mathematica , Numerical Computation
1
REPLIES
6.2K
VIEWS

Computing a Jacobi iteration with the WL?

QUESTION FROM: gabse15 l | 9 years ago BY: Jim Baldwin
Calculus , Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
6.2K
VIEWS

Unexpected solution in a DAE and DiscreteVariables?

QUESTION FROM: Art Arete | 3 years ago BY: xzczd 　
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
6.2K
VIEWS

Get solution of a PDE with NDSolve?

QUESTION FROM: Sinval Santos | 6 years ago BY: Sinval Santos
Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
6.2K
VIEWS

Solving a problem using Newton's Method?

QUESTION FROM: Elizabeth Skrobacz | 9 years ago BY: Murray Eisenberg
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
6.2K
VIEWS

Solve the following delay differential equations?

QUESTION FROM: Rachele Allena | 7 years ago BY: Rachele Allena
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
16
REPLIES
6.2K
VIEWS

Dealing with pairs imported as rationals

QUESTION FROM: Douglas Kubler | 4 years ago BY: Rohit Namjoshi
Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
6.2K
VIEWS

Plotting an NDSolve solution as a function of a parameter?

QUESTION FROM: Alex B | 4 years ago BY: Alex B
Equation Solving , Graphics and Visualization , Mathematics , ...
5
REPLIES
6.2K
VIEWS

Find all roots in no linear equation?

QUESTION FROM: Luis Itzá Vázquez Salazar | 10 years ago BY: Mariusz Iwaniuk
Algebra , Equation Solving , Mathematica , Mathematics , ...
3
REPLIES
6.2K
VIEWS

how to export and import table with fixed accuracy

QUESTION FROM: Markus Schmidt | 10 years ago BY: Yehuda Ben-Shimol
Import and Export , Mathematica , Numerical Computation
1
REPLIES
6.2K
VIEWS

Module 'only assignments to symbols' error

QUESTION FROM: fgarcia | 12 years ago BY: fgarcia
Mathematica , Mathematics , Numerical Computation , ...
2
REPLIES
6.2K
VIEWS

Numerically calculating the largest root of a function

QUESTION FROM: Alex B | 4 years ago BY: Alex B
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
6.2K
VIEWS

Selecting parts of fitted model

QUESTION FROM: Al Guy | 10 years ago BY: Jim Baldwin
Mathematica , Optimization , Numerical Computation , Wolfram Language
10
REPLIES
6.2K
VIEWS

Problem with NDsolve in a simple hydraulic simulation

QUESTION FROM: agilicz | 5 years ago BY: Neil Singer
Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
6.2K
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

[?] Avoid issue with message that "symbol does not have immediate value"?

QUESTION FROM: Fred Kuttner | 5 years ago BY: Fred Kuttner
Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
6.2K
VIEWS

Mesh unit square with triangles?

QUESTION FROM: Okkes Dulgerci | 9 years ago BY: Okkes Dulgerci
Graphics and Visualization , Mathematics , Numerical Computation , ...
9
REPLIES
6.2K
VIEWS

Error using OutputResponse?

QUESTION FROM: Jairo Smith Quilumbaquin Lanchimba | 3 years ago BY: Neil Singer
Calculus , Control Systems , Equation Solving , ...
1
REPLIES
6.2K
VIEWS

Making normal derivative times corresponding multipliers continuous?

QUESTION FROM: Marissa Whitby | 4 years ago BY: Rohit Namjoshi
Calculus , Electrical Engineering , Engineering , Equation Solving , ...
5
REPLIES
6.2K
VIEWS

Number bases: Range of bases and searching for a number base

QUESTION FROM: Franz Strohmeier | 11 years ago BY: Daniel Lichtblau
Mathematics , Numerical Computation , Wolfram|Alpha
1
REPLIES
6.2K
VIEWS

Numerically integrate a function whose lower limit depends on a parameter?

QUESTION FROM: mohamed alzenad | 7 years ago BY: mohamed alzenad
Calculus , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
6.2K
VIEWS

Solve a PDE by using NDSolve?

QUESTION FROM: Mirza Farrukh Baig | 7 years ago BY: Mirza Farrukh Baig
Equation Solving , Mathematics , Numerical Computation , ...
4
REPLIES
6.2K
VIEWS

Plot the Poincare surface of section for the Henon-Heiles System?

QUESTION FROM: Dominik Vierl | 8 years ago BY: EDITORIAL BOARD
Equation Solving , Graphics and Visualization , Mathematics , ...
5
REPLIES
6.1K
VIEWS

Exporting results from NDSolve?

QUESTION FROM: Mishal Mohanlal | 3 years ago BY: Mishal Mohanlal
Calculus , Equation Solving , External Programs and Systems , ...
2
REPLIES
6.1K
VIEWS

Need more help on code for identity involving the Meijer G .

QUESTION FROM: Marvin Ray Burns A.G.S. (cum laude) | 4 years ago BY: Marvin Ray Burns A.G.S. (cum laude)
Calculus , Computer-Based Maths , Mathematics , ...
4
REPLIES
6.1K
VIEWS

SetPrecision

QUESTION FROM: Moses Tenne | 11 years ago BY: Moses Tenne
Mathematica , Numerical Computation
5
REPLIES
6.1K
VIEWS

Use NSolve for a system of two nonlinear equations two unknowns?

QUESTION FROM: Babak K | 7 years ago BY: Daniel Lichtblau
Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
6.1K
VIEWS

NIntegrate returned complex value for non-complex integrand

QUESTION FROM: Denis Petukhov | 11 years ago BY: Sean Clarke
Calculus , Mathematica , Numerical Computation , Wolfram Language
4
REPLIES
6.1K
VIEWS

NSolve takes too long to solve equation?

QUESTION FROM: Sabrina Chui | 4 years ago BY: Sabrina Chui
Algebra , Calculus , Equation Solving , Mathematics , ...
13
REPLIES
6.1K
VIEWS

FindFit built-in symbol: error doesn't make sense

QUESTION FROM: Ram K | 11 years ago BY: Ram K
Mathematica , Optimization , Mathematics , Numerical Computation
5
REPLIES
6.1K
VIEWS

A numerical integration high precision calculation problem

QUESTION FROM: HuaXing Ma | 1 year ago BY: Michael Rogers
Calculus , Mathematics , Numerical Computation , Wolfram Language
19
REPLIES
6.1K
VIEWS

NMinimize "Function value is not a number" problem

QUESTION FROM: Riddhiman Sarkar | 4 years ago BY: Riddhiman Sarkar
Optimization , Mathematics , Numerical Computation , Wolfram Language
2
REPLIES
6.1K
VIEWS

[?] Avoid getting easy integral wrong?

QUESTION FROM: Seth Chandler | 8 years ago BY: Ilian Gachevski
Calculus , Mathematics , Numerical Computation , Wolfram Language
1
REPLIES
6.1K
VIEWS

Can someone please rectify the errors during fitting this model

QUESTION FROM: Jaydeep Yadav | 11 years ago
Biological Sciences , Equation Solving , Mathematica , Modeling , ...
0
REPLIES
6.1K
VIEWS

Runge-Kutta method

QUESTION FROM: Tasneem Smadi | 9 years ago BY: Murray Eisenberg
Equation Solving , Mathematics , Numerical Computation , ...
1
REPLIES
6.1K
VIEWS

Error in FindMinimum for defined function of NIntegrate

QUESTION FROM: Dalale Mhamdi | 4 years ago BY: Nicholas Engelking
Calculus , Optimization , Mathematics , Numerical Computation , ...
1
REPLIES
6.1K
VIEWS

Verifying extracted curve fitting parameters.

QUESTION FROM: Ram K | 11 years ago BY: Ram K
Optimization , Numerical Computation , Wolfram Language
5
REPLIES
6K
VIEWS

Integrate a function in a region around the origin with a singularity?

QUESTION FROM: Miguel Condesso | 7 years ago BY: Miguel Condesso
Calculus , Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
6K
VIEWS

Solve a System of equations using matrix inverse

QUESTION FROM: Willy Saint-Hilaire | 5 years ago BY: Hans Dolhaine
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
6K
VIEWS

Integration over polyhedral region

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

How to Reduce Number of Iteration of Gradient Iterative Method

QUESTION FROM: selahittin cinar | 11 years ago BY: Daniel Lichtblau
Algebra , Equation Solving , Mathematica , Numerical Computation , ...
5
REPLIES
6K
VIEWS

[?] Why NDSolve give a run-away solution for a hamiltonian system?

QUESTION FROM: Meir Lewkowicz | 7 years ago BY: Meir Lewkowicz
Equation Solving , Mathematics , Numerical Computation , Physics , ...
7
REPLIES
6K
VIEWS

Speed up a calculation done by Mathematica involving a 5X5 matrix

QUESTION FROM: Jan Eerland | 5 years ago BY: Daniel Lichtblau
Algebra , Equation Solving , Mathematica , Mathematics , ...
1
REPLIES
6K
VIEWS

differential equation solving numerically

QUESTION FROM: nirupama radhakrishnan | 11 years ago BY: Marco Thiel
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
1
REPLIES
6K
VIEWS

Why does NProbability output a zero?

QUESTION FROM: Raspi Rascal | 4 years ago BY: Raspi Rascal
Numerical Computation , Statistics and Probability , Wolfram Language
6
REPLIES
6K
VIEWS

FEM: user material subroutines (UMAT in ABAQUS), mechanics

QUESTION FROM: Mauricio Lobos | 10 years ago
Numerical Computation
0
REPLIES
6K
VIEWS

Plot Poincare map in order to analyze chaos?

QUESTION FROM: V? Ng?c Vi?t Hoàng | 7 years ago BY: Alexander Trounev
Graphics and Visualization , Mathematics , Numerical Computation , ...
1
REPLIES
6K
VIEWS

Solution of the second-order wave equation?

QUESTION FROM: Vadim Lazuk | 9 years ago BY: Yehuda Ben-Shimol
Engineering , Equation Solving , Mathematics , ...
1
REPLIES
6K
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

while loop issues

QUESTION FROM: Derek du Plessix | 11 years ago BY: Derek du Plessix
Mathematica , Numerical Computation
8
REPLIES
6K
VIEWS

Manipulate parameters/constants in a set of differential equations?

QUESTION FROM: Jonas Hamp | 7 years ago BY: Rohit Namjoshi
Calculus , Equation Solving , Graphics and Visualization , ...
1
REPLIES
6K
VIEWS

AccuracyGoal in NIntegrate puzzle

QUESTION FROM: Luther Nayhm | 11 years ago BY: Luther Nayhm
Mathematica , Numerical Computation
5
REPLIES
6K
VIEWS

Constructing matrix elements using functions and looping

QUESTION FROM: hbar omega | 11 years ago BY: David Reiss
Algebra , Mathematica , Mathematics , Numerical Computation , Physics
1
REPLIES
6K
VIEWS

Writing a loop for multiple derivatives along roots for each derivative?

QUESTION FROM: Brandon Davis | 9 years ago BY: Okkes Dulgerci
Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
6K
VIEWS

NDSolve not producing a smooth solution of an oscillatory function?

QUESTION FROM: John Wick | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
5.9K
VIEWS

Initial conditions of PDE is being ignored?

QUESTION FROM: Bryan Foo | 3 years ago BY: xzczd 　
Calculus , Equation Solving , Graphics and Visualization , ...
9
REPLIES
5.9K
VIEWS

Numerically solving non-linear algebraic equations

QUESTION FROM: Vedat Erturk | 4 years ago BY: Vedat Erturk
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
5.9K
VIEWS

Calculate the following integral and generate a plot?

QUESTION FROM: reza hamzeh | 7 years ago BY: Alexander Trounev
Calculus , Graphics and Visualization , Mathematics , ...
1
REPLIES
5.9K
VIEWS

FEM: Specify a face for boundary conditions

QUESTION FROM: Michael Person | 10 years ago BY: Vitaliy Kaurov
Calculus , Geometry , Numerical Computation , Packages , ...
2
REPLIES
5.9K
VIEWS

Solving for multiple ranges of values

QUESTION FROM: Bryan Lettner | 10 years ago BY: wijnaldum william
Equation Solving , Numerical Computation , Wolfram Language
1
REPLIES
5.9K
VIEWS

ParametricNDSolve with Multiple Parameters

QUESTION FROM: Tim Sowinski | 3 years ago BY: Steady Mushayabasa
Calculus , Data Science , Equation Solving , Mathematics , Modeling , ...
3
REPLIES
5.9K
VIEWS

Solve this quartic equation?

QUESTION FROM: Alejandro Cahuana | 6 years ago BY: David Reiss
Algebra , Mathematics , Numerical Computation , ...
1
REPLIES
5.9K
VIEWS

A look at Liouville's number

QUESTION FROM: Marvin Ray Burns A.G.S. (cum laude) | 10 years ago BY: Daniel Lichtblau
Numerical Computation
7
REPLIES
5.9K
VIEWS

ListPlot3D to show the dependence of a spectrum on a parameter?

QUESTION FROM: Steve Bardwell | 9 years ago BY: Steve Bardwell
Equation Solving , Graphics and Visualization , ...
4
REPLIES
5.9K
VIEWS

Quickly simulate values and evaluate

QUESTION FROM: Casper YC | 11 years ago BY: Mark Dooris
Mathematica , Numerical Computation , Wolfram Language
2
REPLIES
5.9K
VIEWS

Error in NDSolve of transmission line?

QUESTION FROM: Assouguena Nkada Jean | 4 years ago BY: Assouguena Nkada Jean
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
7
REPLIES
5.9K
VIEWS

Avoid machine precision issues while using FindRoot?

QUESTION FROM: Muhammad Atif Masoud | 6 years ago BY: Daniel Lichtblau
Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
5.9K
VIEWS

Date/Time calculation without nights?

QUESTION FROM: Priyan Fernando | 8 years ago
Numerical Computation , Units , Wolfram Language
0
REPLIES
5.9K
VIEWS

[?] Get two significant digits to the right of the decimal point?

QUESTION FROM: Nelson Zink | 8 years ago BY: Daniel Lichtblau
Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
5.9K
VIEWS

Derivation of numerical scheme for linear transport equation on a variable

QUESTION FROM: Oleg Kravchenko | 10 years ago BY: EDITORIAL BOARD
Mathematics , Numerical Computation , Wolfram Language
1
REPLIES
5.9K
VIEWS

[?] Curve fitting with several implicit functions?

QUESTION FROM: Frank Biedermann | 8 years ago BY: Frank Biedermann
Data Science , Equation Solving , Mathematics , ...
5
REPLIES
5.9K
VIEWS

Finding Maximum and Location of Maximum of Function within Limits

QUESTION FROM: Laura McMullen | 10 years ago BY: David Keith
Calculus , Equation Solving , Optimization , Modeling , ...
1
REPLIES
5.9K
VIEWS

Empty result when solving two differential equation with NDSolve[ ]?

QUESTION FROM: John Wick | 4 years ago BY: John Wick
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
5.9K
VIEWS

ComplexExpand_NSolve_Problem

QUESTION FROM: Kashif Nazar | 10 years ago BY: Daniel Lichtblau
Algebra , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
5.9K
VIEWS

Run this integral code faster?

QUESTION FROM: Yonggang Luo | 8 years ago BY: Yonggang Luo
Algebra , Calculus , Mathematics , Numerical Computation , ...
4
REPLIES
5.8K
VIEWS

A Linear Algebra History Question?

QUESTION FROM: Douglas Youvan | 11 years ago BY: Daniel Lichtblau
Algebra , Numerical Computation , Software Development
1
REPLIES
5.8K
VIEWS

Define a solution of equation as the integration limit?

QUESTION FROM: Yonggang Luo | 8 years ago BY: Claude Mante
Algebra , Calculus , Equation Solving , Mathematics , ...
1
REPLIES
5.8K
VIEWS

Unexpected NMinimize result?

QUESTION FROM: Okkes Dulgerci | 8 years ago BY: Okkes Dulgerci
Optimization , Mathematics , Modeling , Numerical Computation , ...
3
REPLIES
5.8K
VIEWS

Lyapunov exponent from time series data for DDE?

QUESTION FROM: Dia Ghosh | 9 years ago BY: Dia Ghosh
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
5.8K
VIEWS

Integrate a function in a 4D region with singularities using NIntegrate?

QUESTION FROM: Miguel Condesso | 7 years ago BY: Neil Singer
Calculus , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
5.8K
VIEWS

Copy and paste works for NDSolve argument but variable assignment does not?

QUESTION FROM: Taylor Patti | 8 years ago BY: David Keith
Equation Solving , Mathematics , Numerical Computation , ...
1
REPLIES
5.8K
VIEWS

How to manipulate the initial values (initial conditios) in a ODE system?

QUESTION FROM: Ricardo Sánchez | 9 years ago BY: Ricardo Sánchez
Dynamic Interactivity , Equation Solving , Numerical Computation , ...
2
REPLIES
5.8K
VIEWS

Singularity in NDSolve?

QUESTION FROM: Jonas Hamp | 7 years ago
Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
5.8K
VIEWS

Mathematica v12.3.0 has detected an internal error

QUESTION FROM: Apocalypse infinity | 4 years ago BY: Apocalypse infinity
Calculus , Optimization , Mathematics , Numerical Computation , ...
4
REPLIES
5.8K
VIEWS

Passing a numerical solution of an integral to NIntegrate?

QUESTION FROM: Alex B | 4 years ago BY: Michael Harrison
Calculus , Mathematics , Numerical Computation , Wolfram Language
1
REPLIES
5.8K
VIEWS

error in N // Floor? (corrected version)

QUESTION FROM: Peter Quedens | 11 years ago BY: Ilian Gachevski
Mathematica , Numerical Computation , Wolfram Language
5
REPLIES
5.8K
VIEWS

Using NDSolve in an Iteration

QUESTION FROM: Thomas Winkler | 11 years ago BY: W. Craig Carter
Mathematica , Numerical Computation
1
REPLIES
5.8K
VIEWS

How to find all roots of an equation?

QUESTION FROM: Jacques Ou | 3 years ago BY: Updating Name
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
4
REPLIES
5.8K
VIEWS

Error NDSolve::bvdae while solving differential algebraic system

QUESTION FROM: Gaetano Colella | 3 years ago BY: Paritosh Mokhasi
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
5.7K
VIEWS
4
5
6
7
8

Group Count Group Count

1273 Discussions

Group Branding Group Branding

New Discussion New Discussion

ACTIVE MEMBERS ACTIVE MEMBERS

ACTIVE MEMBERS
binoushousam
Housam Binous
4 days ago
mkafker
Matthew Kafker
10 days ago
rowland
Todd Rowland
11 days ago
brunot
Bruno Tenorio
12 days ago
russell
Gareth Russell
10 days ago
akram2007omar
Akram Masoud
13 days ago
ankitn
Ankit Naik
21 days ago

RELATED GROUPS RELATED GROUPS

RELATED GROUPS
Graphics and Visualization 4K discussions 1K subscriptions
Wolfram Language 11K discussions 2K subscriptions
Chemistry 329 discussions 760 subscriptions
Modeling 735 discussions 1K subscriptions
Engineering 649 discussions 1K subscriptions
Symbolic Computations 890 discussions 728 subscriptions