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

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Finite Elements: how to impose periodic boundary conditions

QUESTION FROM: Mauricio Lobos | 11 years ago BY: Marco Thiel
Mechanical Engineering , Numerical Computation
4
REPLIES
9.2K
VIEWS

Numerical partial derivative of a function?

QUESTION FROM: Iuval Clejan | 9 years ago BY: Iuval Clejan
Calculus , Mathematics , Numerical Computation , Wolfram Language
16
REPLIES
9.2K
VIEWS

Wrong numerical value

QUESTION FROM: M. R. | 11 years ago BY: Marco Thiel
Calculus , Mathematica , Numerical Computation , Wolfram Language
3
REPLIES
9.2K
VIEWS

Solve the reduced three-body problem?

QUESTION FROM: thomas rialan | 7 years ago BY: Alexander Trounev
Astronomy , Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
9.2K
VIEWS

Fitting (x,y) data to model, with more weight at higher y values

QUESTION FROM: David Kirkby | 9 years ago BY: David Kirkby
Engineering , Modeling , Numerical Computation , Wolfram Language
5
REPLIES
9.2K
VIEWS

On a Pythagorean n-body example

CONTRIBUTED BY: J. M. | 4 years ago BY: EDITORIAL BOARD
Staff Picks , Astronomy , Calculus , Equation Solving , ...
1
REPLIES
9.2K
VIEWS

Problem using Piecewise with NDSolve

QUESTION FROM: David Barrows | 4 years ago BY: David Barrows
Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
9.2K
VIEWS

Work with LinearProgramming with very small and very big numbers?

QUESTION FROM: Darek S. | 9 years ago BY: Daniel Lichtblau
Equation Solving , Optimization , Mathematics , ...
1
REPLIES
9.2K
VIEWS

Finding Happy/Sad Numbers

QUESTION FROM: Anonymous User | 9 years ago BY: Eric Rimbey
Mathematics , Numerical Computation , Wolfram Language
14
REPLIES
9.2K
VIEWS

Numerical integration of double integral with two variables

QUESTION FROM: Shahrukh Khan Kasi | 5 years ago BY: David Keith
Calculus , Mathematics , Numerical Computation , Wolfram Language
6
REPLIES
9.1K
VIEWS

How to subtract interpolating functions

QUESTION FROM: Charles Rackson | 10 years ago BY: Charles Rackson
Numerical Computation , Wolfram Language
2
REPLIES
9.1K
VIEWS

Output the numerical expression of a function?

QUESTION FROM: Sebastian Perez | 7 years ago BY: Alexander Trounev
Compilation , Mathematics , Numerical Computation , Physics , ...
1
REPLIES
9.1K
VIEWS

unintended recursion

QUESTION FROM: Bruce Ackerson | 10 years ago BY: Bruce Ackerson
Mathematics , Numerical Computation , Physics , Tuning and Debugging
5
REPLIES
9.1K
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

Overdetermined Linear LeastSquares solution of AX=B with constraint [B]>0

QUESTION FROM: Bijan Deb | 10 years ago BY: Daniel Lichtblau
Algebra , Equation Solving , Mathematica , Optimization , ...
3
REPLIES
9.1K
VIEWS

[?] Compute a triple integral with NIntegrate?

QUESTION FROM: Xing Shi Cai | 8 years ago BY: Michael Rogers
Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
9.1K
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
9K
VIEWS

Recreating functions after passing through Fourier Transform & IFT

QUESTION FROM: Eric Kjolsing | 11 years ago BY: Stefan Janecek
Mathematica , Numerical Computation
6
REPLIES
9K
VIEWS

Global data fitting for a chemical kinetics problem?

QUESTION FROM: Hélène PASQUIER | 5 years ago BY: Hélène PASQUIER
Equation Solving , Optimization , Mathematics , ...
5
REPLIES
9K
VIEWS

Find the average value of the unit pulse using NIntegrate and Unit Steps?

QUESTION FROM: Roger Backhus | 7 years ago BY: Roger Backhus
Calculus , Engineering , Mathematics , Numerical Computation , ...
2
REPLIES
9K
VIEWS

Can you find the PseudoInverse of this matrix?

QUESTION FROM: Douglas Youvan | 10 years ago BY: Frank Kampas
Algebra , Discrete Mathematics , Equation Solving , ...
4
REPLIES
9K
VIEWS

Finding straight line generators through approximate synthesis of symmetric four-bar coupler curves

CONTRIBUTED BY: Aravind Baskar | 2 years ago BY: Aravind Baskar
Staff Picks , Dynamic Interactivity , Geometry , ...
3
REPLIES
9K
VIEWS

Speed up numerical solution of differential equation using BSplines?

QUESTION FROM: Enzo Marino | 9 years ago BY: Enzo Marino
Equation Solving , Optimization , Mathematics , ...
14
REPLIES
9K
VIEWS

What algorithm does NSolve use for real solutions of underdetermined system

QUESTION FROM: dbm368 | 7 years ago BY: Updating Name
Equation Solving , Mathematics , Numerical Computation , ...
11
REPLIES
9K
VIEWS

[?] Calculate this surface integral?

QUESTION FROM: Mike Luntz | 6 years ago BY: Mike Luntz
Calculus , Mathematics , Numerical Computation , Wolfram Language
2
REPLIES
9K
VIEWS

Large time difference when >= is used compared to ==?

QUESTION FROM: Paul Cleary | 10 years ago BY: Paul Cleary
Equation Solving , High-Performance Computing , Mathematica , ...
3
REPLIES
9K
VIEWS

Why does NDSolve return a constant value when the derivative is positive?

QUESTION FROM: Robert McHugh | 6 years ago BY: Robert McHugh
Calculus , Control Systems , Equation Solving , Mathematics , ...
2
REPLIES
9K
VIEWS

Explorations in aircraft stability augmented systems: a RL approach

CONTRIBUTED BY: Saulo da Paz Almeida | 3 years ago BY: Daniel Carvalho
Staff Picks , Aerospace Engineering , Control Systems , Engineering , ...
4
REPLIES
9K
VIEWS

NIntegrate with parameters in Block: Avoid error messages?

QUESTION FROM: Vladimir Ivanov | 8 years ago BY: Vladimir Ivanov
Calculus , Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
8.9K
VIEWS

A Diophantine Benchmark

QUESTION FROM: Jaime Rangel-Mondragon | 12 years ago BY: Vitaliy Kaurov
Computer-Based Maths , Computer Science , Discrete Mathematics , ...
3
REPLIES
8.9K
VIEWS

Solve large linear systems with ParametricNDSolve?

QUESTION FROM: J Jesus Rico-Melgoza | 9 years ago BY: J Jesus Rico-Melgoza
Control Systems , Equation Solving , Mathematics , ...
6
REPLIES
8.9K
VIEWS

Convert Crandall's Mma MRB Constant code to C, C++ or Turbo C++

QUESTION FROM: Marvin Ray Burns A.G.S. (cum laude) | 8 years ago
Computer Science , External Programs and Systems , Mathematics , ...
0
REPLIES
8.9K
VIEWS

Use of dummy variables in double integrals

QUESTION FROM: T Saab | 12 years ago BY: T Saab
Mathematica , Numerical Computation , Physics , Wolfram Language
3
REPLIES
8.9K
VIEWS

Finding the first digits of 2^2^2^2^2^2

CONTRIBUTED BY: James Choi | 4 years ago BY: James Choi
Staff Picks , Equation Solving , Mathematics , ...
3
REPLIES
8.9K
VIEWS

Avoid overflow for pandigital Sabey formula for calculation of e?

QUESTION FROM: Aeyoss Antelope | 8 years ago BY: Daniel Lichtblau
Mathematics , Numerical Computation , Recreation , Wolfram Language
4
REPLIES
8.9K
VIEWS

The reciprocal Fibonacci constant

CONTRIBUTED BY: Jonathan Kinlay | 4 years ago BY: Henrik Schachner
Staff Picks , Calculus , Discrete Mathematics , Mathematics , ...
2
REPLIES
8.9K
VIEWS

Solve Poisson eq. using Finite Element Method (FEM) on a regular mesh?

QUESTION FROM: Okkes Dulgerci | 9 years ago BY: Okkes Dulgerci
Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
8.8K
VIEWS

Fitting different data sets with different models using FindFit

QUESTION FROM: Lorenzo Fuggiano | 5 years ago BY: Updating Name
Mathematics , Modeling , Numerical Computation , Signal Processing , ...
10
REPLIES
8.8K
VIEWS

Solve the following fourth order ODE?

QUESTION FROM: Mirza Farrukh Baig | 7 years ago BY: Alexander Trounev
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
8.8K
VIEWS

Obtain a numerical solution and Plot this equation?

QUESTION FROM: Ömer Faruk AKYILDIZ | 6 years ago BY: Ricardo Waste
Equation Solving , Mathematica , Mathematics , ...
13
REPLIES
8.8K
VIEWS

Burns' paper on closed forms for MKB like integrals. Co-authors wanted.

CONTRIBUTED BY: Marvin Ray Burns A.G.S. (cum laude) | 9 years ago BY: Marvin Ray Burns A.G.S. (cum laude)
Authoring and Publishing , Mathematics , Numerical Computation , ...
2
REPLIES
8.8K
VIEWS

[?] Avoid troubles when using WhenEvent?

QUESTION FROM: J Jesus Rico-Melgoza | 8 years ago BY: Michael Rogers
Control Systems , Equation Solving , Mathematics , ...
3
REPLIES
8.8K
VIEWS

Setup NetLink with SsfPack (a .dll) for use in State Space Time Series?

QUESTION FROM: Ray Troy | 8 years ago BY: Neil Singer
Control Systems , External Programs and Systems , Mathematica , ...
3
REPLIES
8.8K
VIEWS

Use NMinimize calling an own defined function?

QUESTION FROM: Mario Junior Mencagli | 1 year ago BY: Unknown Unknown
Optimization , Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
8.8K
VIEWS

Use NIntegrate In parallel?

QUESTION FROM: Zheng Li | 6 years ago BY: Zheng Li
Mathematics , Numerical Computation , Wolfram Language
6
REPLIES
8.7K
VIEWS

Solve system of equations with NSolve?

QUESTION FROM: Eft Rsd | 9 years ago BY: Gianluca Gorni
Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
8.7K
VIEWS

Log Det vs Tr Log numerical discrepancy?

QUESTION FROM: Ignat Fialkovskiy | 5 years ago BY: J Coss
Calculus , Mathematics , Numerical Computation , Wolfram Language
2
REPLIES
8.7K
VIEWS

How to fit parameters in a system of coupled differential equations

QUESTION FROM: Roc White | 10 years ago BY: Roc White
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
5
REPLIES
8.7K
VIEWS

[?] Control the precision of the result with FindMinimum?

QUESTION FROM: Joao Porto | 7 years ago BY: Michael Rogers
Optimization , Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
8.7K
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
8.7K
VIEWS
5
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