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Numeric equation solving, calculus and statistics, precision and accuracy control for numeric computations...

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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

Solving the Laplace equation with only Neumann boundary conditions

QUESTION FROM: Jens Rix | 10 years ago BY: Jens Rix
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
3
REPLIES
11.4K
VIEWS

How to solve the TOV equation?

QUESTION FROM: Lingxiao Wang | 10 years ago BY: Lingxiao Wang
Astronomy , Equation Solving , Mathematica , Numerical Computation , ...
2
REPLIES
11.6K
VIEWS

How do I repeat/loop multiple functions that are related?

QUESTION FROM: Thai Kee Gan | 10 years ago BY: Thai Kee Gan
Calculus , Equation Solving , Mathematica , Optimization , ...
12
REPLIES
31.5K
VIEWS

Is there any equivalent command other than NSolve

QUESTION FROM: Kashif Nazar | 10 years ago BY: Frank Kampas
Algebra , Numerical Computation , Wolfram Language
2
REPLIES
7.4K
VIEWS

Estimating parameters based on lists of boundary conditions

QUESTION FROM: Julian Lovlie | 10 years ago BY: Jim Baldwin
Equation Solving , Mathematica , Optimization , Mathematics , ...
1
REPLIES
8.3K
VIEWS

Simple taylor expansion of symbolic variables

QUESTION FROM: Jungyeoul Maeng | 10 years ago BY: S M Blinder
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
1
REPLIES
4K
VIEWS

Shooting method and matching the two expansions

QUESTION FROM: Xu Xu | 10 years ago BY: Xu Xu
Equation Solving , Mathematica , Mathematics , ...
2
REPLIES
5.8K
VIEWS

ParametricNDSolveValue error

QUESTION FROM: Thai Kee Gan | 10 years ago
Calculus , Computational Systems , Computer Science , Engineering , ...
0
REPLIES
7.9K
VIEWS

Can some one explain this odd behavior?

QUESTION FROM: Paul Cleary | 10 years ago BY: Paul Cleary
Mathematica , Mathematics , Numerical Computation
6
REPLIES
5K
VIEWS

Why does FindMinimum return 'The function value Null is not a real number'?

QUESTION FROM: Marco Gorelli | 10 years ago BY: Frank Kampas
Mathematica , Optimization , Numerical Computation , Wolfram Language
7
REPLIES
5.8K
VIEWS

Problem: Calibration of the Duffie Pan and Singleton Model (2000)

QUESTION FROM: philipp.la | 10 years ago BY: philipp.la
Business Analytics , Mathematica , Optimization , ...
4
REPLIES
13.5K
VIEWS

How to subtract interpolating functions

QUESTION FROM: Charles Rackson | 10 years ago BY: Charles Rackson
Numerical Computation , Wolfram Language
2
REPLIES
9.2K
VIEWS

How can I solve a delay partial differential equation?

QUESTION FROM: Austin Burt | 10 years ago
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
0
REPLIES
2.5K
VIEWS

Real-valued integral over real variable returns complex result(s)

QUESTION FROM: Jerry | 10 years ago BY: Marco Thiel
Calculus , Mathematica , Numerical Computation , Wolfram Language
7
REPLIES
19.4K
VIEWS

immersed-boundary-method-for-complex-flows

QUESTION FROM: Max Popov | 10 years ago
Computer Science , Mathematica , Mathematics , Modeling , ...
0
REPLIES
2.4K
VIEWS

"AccuracyGoal" and NDSolve

QUESTION FROM: Richard Dir | 10 years ago BY: Sean Clarke
Calculus , Numerical Computation , Wolfram Language
1
REPLIES
5.3K
VIEWS

Reaching an error of 1/0 when trying to evaluate an expression

QUESTION FROM: Andrew Ross | 10 years ago BY: Sean Clarke
Calculus , Equation Solving , Numerical Computation , Wolfram Language
6
REPLIES
11.7K
VIEWS

Problems with accuracy/precision of determinante, numerics

QUESTION FROM: Markus Schmidt | 10 years ago BY: Markus Schmidt
Algebra , Equation Solving , Numerical Computation , Wolfram Language
6
REPLIES
5.5K
VIEWS

LogLogPlot errors

QUESTION FROM: Leos Pohl | 10 years ago BY: Shenghui Yang
Graphics and Visualization , Mathematica , Numerical Computation
3
REPLIES
6.8K
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

Gradient of an Interpolating Function

QUESTION FROM: Roger Backhus | 10 years ago BY: Roger Backhus
Numerical Computation
2
REPLIES
11.5K
VIEWS

Puzzled by FindClusters on a set of dates with a custom DistanceFunction

QUESTION FROM: David Reiss | 10 years ago BY: David Reiss
Data Science , Discrete Mathematics , Mathematica , Mathematics , ...
2
REPLIES
9.5K
VIEWS

Runge Kutta method to solve the Equation

QUESTION FROM: Zainab Junaid | 10 years ago BY: Zainab Junaid
Calculus , Equation Solving , Numerical Computation , Wolfram Language
7
REPLIES
13.5K
VIEWS

How Do I combine NDSolve (RungeKutta4thOrder) and Loop(For or Do) together?

QUESTION FROM: Thai Kee Gan | 10 years ago BY: Bruce Miller
Calculus , Equation Solving , Mathematica , Modeling , ...
19
REPLIES
19.4K
VIEWS

How can I recreate my equation within my following function

QUESTION FROM: jethro holcroft | 10 years ago BY: Luis Ledesma
Dynamic Interactivity , Equation Solving , ...
3
REPLIES
9.8K
VIEWS

Could you please help me to solve this partial differential equation ?

QUESTION FROM: sanaz ka | 10 years ago BY: sanaz ka
Algebra , Calculus , Equation Solving , Numerical Computation , ...
4
REPLIES
5.6K
VIEWS

I wish to create a function returns a binomial and initializes an integer

QUESTION FROM: jethro holcroft | 10 years ago BY: Nasser M. Abbasi
Algebra , Numerical Computation , Wolfram Language
1
REPLIES
6.4K
VIEWS

Speeding up a simulation

QUESTION FROM: Nabeel Butt | 10 years ago
Compilation , Finance , Mathematica , Mathematics , Modeling , ...
0
REPLIES
9.5K
VIEWS

Speeding up Interpolated function computation?

QUESTION FROM: Nabeel Butt | 10 years ago
Compilation , Mathematica , Numerical Computation , ...
0
REPLIES
8.5K
VIEWS

Telling NDSolve to solve for reals only

QUESTION FROM: Josh Wofford | 10 years ago BY: Nasser M. Abbasi
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
1
REPLIES
8.8K
VIEWS

Newton-Raphson method

QUESTION FROM: Maha haroon | 10 years ago BY: Sertan Alkan
Equation Solving , Numerical Computation , Wolfram Language
1
REPLIES
7.8K
VIEWS

Precision in NDSolve

QUESTION FROM: Francois Fayard | 10 years ago BY: Frank Kampas
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
5
REPLIES
10.3K
VIEWS

Please let me know why Mathematica gives error message!

QUESTION FROM: Changsoo Lee | 10 years ago BY: Changsoo Lee
Equation Solving , Numerical Computation , Wolfram Language
4
REPLIES
6.9K
VIEWS

Running a Mathematica's notebook, I hear a beep. What does it means?

QUESTION FROM: Jo R | 10 years ago BY: Bruce Miller
Equation Solving , Mathematica , Numerical Computation , ...
1
REPLIES
7.7K
VIEWS

Why the heat equation doesn't work with NDSolve?

QUESTION FROM: Jo R | 10 years ago BY: Jo R
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
11
REPLIES
10.8K
VIEWS

Can I create a function by assigning list elements?

QUESTION FROM: Zenon PodbipiÄ?ta | 10 years ago BY: Zenon PodbipiÄ?ta
Algebra , Computer Science , Import and Export , Mathematica , ...
2
REPLIES
7.9K
VIEWS

Bisection Method to solve a polynomial?

QUESTION FROM: Jo Ko | 10 years ago BY: Daniel Lichtblau
Calculus , Equation Solving , Numerical Computation , Wolfram Language
1
REPLIES
5.4K
VIEWS

Exporting a matrix from C++ to Mathematica

CONTRIBUTED BY: Thomas Russell | 10 years ago
External Programs and Systems , Import and Export , Mathematica , ...
0
REPLIES
7.9K
VIEWS

Can Mathematica modify lightly the inital conditions of NDSolve??

QUESTION FROM: Arnau Jim | 10 years ago BY: Frank Kampas
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
4
REPLIES
6.7K
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

Im having trouble making a few lines of code work within manipulate

QUESTION FROM: jethro holcroft | 10 years ago BY: Bruce Miller
Dynamic Interactivity , Graphics and Visualization , ...
2
REPLIES
11.8K
VIEWS

Loop Construction

QUESTION FROM: selahittin cinar | 10 years ago BY: Jim Baldwin
Algebra , Mathematica , Numerical Computation , Wolfram Language
4
REPLIES
8.1K
VIEWS

how to solve double integral with mathematica?

QUESTION FROM: ver din | 10 years ago BY: ver din
Calculus , Mathematica , Numerical Computation , Wolfram Language
2
REPLIES
23.7K
VIEWS

Solving Laplace Equation using Finite Elements

QUESTION FROM: Rene Samson | 10 years ago BY: Rene Samson
Calculus , Engineering , Numerical Computation , Wolfram Language
9
REPLIES
20K
VIEWS

Mean Imputation

QUESTION FROM: Gira Ahmed | 10 years ago BY: Todd Rowland
Mathematica , Numerical Computation , Statistics and Probability , ...
6
REPLIES
7.8K
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
10K
VIEWS

obscure bug using FindRoot[ Integrate[...

CONTRIBUTED BY: Mike Luntz | 10 years ago BY: Mike Luntz
Equation Solving , Mathematica , Numerical Computation , ...
4
REPLIES
9.1K
VIEWS

WhenEvent issue with vector valued diffeq

QUESTION FROM: David Keith | 11 years ago BY: David Keith
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
4
REPLIES
8.4K
VIEWS

How to use NMinimize on a mesh?

QUESTION FROM: Jonatan Lehtonen | 11 years ago BY: Ilian Gachevski
Geometry , Graphics and Visualization , Mathematica , ...
4
REPLIES
125K
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
12K
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

Unknown error in NDSolve and other issues

QUESTION FROM: Konstantin Nosov | 11 years ago BY: Konstantin Nosov
Equation Solving , Mathematica , Numerical Computation
3
REPLIES
6.7K
VIEWS

The sudoku game and factor graphs

QUESTION FROM: soukina bernoussi | 11 years ago
Graphs and Networks , Numerical Computation
0
REPLIES
3K
VIEWS

CUDA: Specifying the graphics card on Macbook Pro 15 Retina

QUESTION FROM: W. Craig Carter | 11 years ago BY: W. Craig Carter
High-Performance Computing , Mathematica , Numerical Computation , ...
2
REPLIES
11.6K
VIEWS

FindMaximum failing

QUESTION FROM: ash ash | 11 years ago BY: ash ash
Optimization , Numerical Computation , Wolfram Language
12
REPLIES
9.6K
VIEWS

How do I tell the Base Conversion Calculator how many digits there are?

QUESTION FROM: Aaron Ingebrigtsen | 11 years ago BY: Aaron Ingebrigtsen
Mathematica , Numerical Computation , Wolfram Language
2
REPLIES
7.4K
VIEWS

Define a complex number

QUESTION FROM: Ahmed Al-Ali | 11 years ago BY: Ulrich Mutze
Algebra , Calculus , Compilation , Logic and Boolean Algebra , ...
4
REPLIES
15.2K
VIEWS

Is there a way to speed things up for this optimization with NIntegrate

QUESTION FROM: Casper YC | 11 years ago BY: Daniel Lichtblau
Mathematica , Optimization , Numerical Computation , ...
1
REPLIES
9.1K
VIEWS

Stopping Integration by using RegionMember inside a WhenEvent

QUESTION FROM: Erik Mahieu | 11 years ago BY: Erik Mahieu
Dynamic Interactivity , Geometry , Modeling , Numerical Computation , ...
2
REPLIES
8.3K
VIEWS

Problems with NDSolve and "singularity/stiffness system" errors.

QUESTION FROM: Manuel Jurado | 11 years ago BY: Manuel Jurado
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
2
REPLIES
7.8K
VIEWS

How to use the Finite elements method with Mathematica?

QUESTION FROM: Olivier Lemarchand | 11 years ago BY: Olivier Lemarchand
Calculus , Equation Solving , Numerical Computation , Wolfram Language
2
REPLIES
7.1K
VIEWS

How can I assign values to individual matrix locations?

CONTRIBUTED BY: Tommy Volk | 11 years ago BY: Daniel Lichtblau
Discrete Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
6.7K
VIEWS

Puzzling BitShiftRight behaviour on lists

QUESTION FROM: Berke Durak | 11 years ago BY: Ilian Gachevski
Logic and Boolean Algebra , Mathematica , Numerical Computation
1
REPLIES
6.7K
VIEWS

How to find the rows of a floating point matrix that match another?

QUESTION FROM: Jonatan Lehtonen | 11 years ago BY: Jonatan Lehtonen
Mathematica , Numerical Computation , Wolfram Language
2
REPLIES
4.9K
VIEWS

Parametric Plotting A Numerical Solution to a Set of 4 Differential Eq's

QUESTION FROM: John Thacher | 11 years ago BY: John Thacher
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
2
REPLIES
7.1K
VIEWS

Taking the Best Fit of a Picture of the intensity of a beam?

QUESTION FROM: Keith Osborne | 11 years ago BY: Keith Osborne
Graphics and Visualization , Mathematica , Mathematics , ...
1
REPLIES
10.9K
VIEWS

Three methods to solve a singular matrix ?

QUESTION FROM: Douglas Youvan | 11 years ago
Algebra , Mathematica , Mathematics , Numerical Computation
0
REPLIES
4.5K
VIEWS

how to transform custom numerical data

QUESTION FROM: Reshma M | 11 years ago BY: David Keith
Computer Science , Data Science , Engineering , Mathematica , ...
3
REPLIES
11K
VIEWS

Eigenvalue Problem of Hamiltonian of Single Cooper Pair Box

QUESTION FROM: ebrahimmm6781 Khalil | 11 years ago BY: Frank Kampas
Algebra , Calculus , Computational Systems , Discrete Mathematics , ...
1
REPLIES
10.6K
VIEWS

Find root not working when attempting on function defined by module

QUESTION FROM: david baughman | 11 years ago BY: Daniel Lichtblau
Astronomy , Equation Solving , Mathematica , Optimization , ...
5
REPLIES
10.3K
VIEWS

What is the correct answer of this integral?

QUESTION FROM: esi fn | 11 years ago BY: Daniel Lichtblau
Calculus , Mathematica , Numerical Computation , Wolfram Language
3
REPLIES
5.5K
VIEWS

Please Help : Error in plotting the solutions of FindRoot

QUESTION FROM: Betatron Steve | 11 years ago BY: Udo Krause
Equation Solving , Graphics and Visualization , ...
1
REPLIES
4.7K
VIEWS

A Linear Algebra History Question?

QUESTION FROM: Douglas Youvan | 11 years ago BY: Daniel Lichtblau
Algebra , Numerical Computation , Software Development
1
REPLIES
5.9K
VIEWS

Numerical integration of data imported for Excel

QUESTION FROM: Luke Schutzenhofer | 11 years ago BY: David Reiss
Calculus , Import and Export , Mathematica , Numerical Computation , ...
14
REPLIES
12.2K
VIEWS

How to enter high precision numerical constants?

QUESTION FROM: rhutson2 | 11 years ago BY: rhutson2
Mathematica , Numerical Computation
5
REPLIES
5.5K
VIEWS

smoothing the numerical data

QUESTION FROM: nagao hideyuki | 11 years ago BY: nagao hideyuki
Mathematica , Numerical Computation , Signal Processing , ...
2
REPLIES
6.7K
VIEWS

How rare is it for a sparse rectangular matrix to have an exact solution?

QUESTION FROM: Douglas Youvan | 11 years ago BY: Douglas Youvan
Algebra , Discrete Mathematics , Equation Solving , ...
3
REPLIES
7.1K
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

Is random number generation based on Farlie-Gumbel-Morgenstern copula wrong

QUESTION FROM: Ramesh Adhikari | 11 years ago
Mathematics , Numerical Computation , Wolfram Language
0
REPLIES
2.1K
VIEWS

How to Find Number of Iteration of Power Method

QUESTION FROM: selahittin cinar | 11 years ago
Mathematica , Mathematics , Numerical Computation , Wolfram Language
0
REPLIES
7.5K
VIEWS

Different kind of numeric erros when plotting recursive functions

QUESTION FROM: George Scotton | 11 years ago
Graphics and Visualization , Mathematica , Numerical Computation , ...
0
REPLIES
3.4K
VIEWS

How can I gather the results of several computations of a notebook?

QUESTION FROM: Vladimir Korukov | 11 years ago BY: Vladimir Korukov
Mathematica , Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
4K
VIEWS

Why I am getting Abs' when I am doing derivative over a complex function?

QUESTION FROM: Ali Mousavian | 11 years ago BY: David Reiss
Numerical Computation
4
REPLIES
19.6K
VIEWS

NDSolve problem: different results with different time integration

QUESTION FROM: luca civati | 11 years ago
Aerospace Engineering , Civil Engineering , Engineering , ...
0
REPLIES
6.9K
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
6.1K
VIEWS

Does anyone recognize this SVD shortcut as a known equation?

QUESTION FROM: Douglas Youvan | 11 years ago BY: Douglas Youvan
Algebra , Equation Solving , Mathematica , Mathematics , ...
2
REPLIES
5.5K
VIEWS

Integrate integral C2 were the integand is a table and the output g1 table

QUESTION FROM: Luke Schutzenhofer | 11 years ago BY: Luke Schutzenhofer
Calculus , Engineering , Mathematica , Numerical Computation , ...
15
REPLIES
13.2K
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

Speeding up plot for numerical optimization

QUESTION FROM: Casper YC | 11 years ago
Graphics and Visualization , Optimization , Mathematics , ...
0
REPLIES
7.4K
VIEWS

Expand a long Polya binomial sum

QUESTION FROM: Max Pierini | 11 years ago
Numerical Computation
0
REPLIES
1.4K
VIEWS

while loop issues

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

How do I solve a profile interval (statistics)

QUESTION FROM: Casper YC | 11 years ago BY: Casper YC
Equation Solving , Mathematics , Numerical Computation , ...
4
REPLIES
6.7K
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

What went wrong with this NDSolve command usage?

QUESTION FROM: INTAN SUPRABA | 11 years ago BY: INTAN SUPRABA
Civil Engineering , Engineering , Equation Solving , Mathematics , ...
2
REPLIES
13.4K
VIEWS

Martin Gardner's 100th Birthday

CONTRIBUTED BY: Ed Pegg | 11 years ago BY: rudy fernando gonzalez escobar
Algebra , Demonstrations , Discrete Mathematics , Geometry , ...
2
REPLIES
12.5K
VIEWS

Gauss iteration method-nestlist-stopping criteria

QUESTION FROM: selahittin cinar | 11 years ago BY: Daniel Lichtblau
Mathematica , Mathematics , Numerical Computation
4
REPLIES
4.8K
VIEWS

ListInterpolation help?

QUESTION FROM: Paul Reiser | 11 years ago BY: Paul Reiser
Data Science , Mathematica , Numerical Computation , Wolfram Language
4
REPLIES
7K
VIEWS

No tools for Convex Optimization in Mathematica??

QUESTION FROM: Raffaele Santagati | 11 years ago BY: Frank Kampas
Mathematica , Optimization , Numerical Computation , Wolfram Language
4
REPLIES
10.9K
VIEWS

Use .NETLink to call the MathNet library

CONTRIBUTED BY: Shenghui Yang | 11 years ago
External Programs and Systems , Mathematica , Numerical Computation , ...
0
REPLIES
5.7K
VIEWS
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