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

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[?] Fastest way to compute integral in loops?

QUESTION FROM: Abdullah Alhag | 8 years ago BY: Neil Singer
Compilation , Mathematics , Numerical Computation , Wolfram Language
9
REPLIES
11.4K
VIEWS

Mesh unit square with triangles?

QUESTION FROM: Okkes Dulgerci | 9 years ago BY: Okkes Dulgerci
Graphics and Visualization , Mathematics , Numerical Computation , ...
9
REPLIES
6.1K
VIEWS

Error in NonlinearModelFit with a trig function

QUESTION FROM: syed islam | 9 years ago BY: syed islam
Equation Solving , Optimization , Modeling , Numerical Computation , ...
9
REPLIES
8.1K
VIEWS

Solving Cubic Splines Symbolically

QUESTION FROM: Brandon Breitling | 10 years ago BY: Alexey Popkov
Calculus , Mathematica , Numerical Computation , Wolfram Language
9
REPLIES
9.7K
VIEWS

How to get accurate results of InverseCDF function in Mathematica 9?

QUESTION FROM: Otto Linsuain | 10 years ago BY: Otto Linsuain
Numerical Computation , Statistics and Probability
9
REPLIES
7.9K
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
19.9K
VIEWS

Get the precise value of 2^0.3

QUESTION FROM: yongran kim | 12 years ago BY: Hans Milton
Mathematica , Numerical Computation
9
REPLIES
10.8K
VIEWS

Overflow while computing 10^16 digit

QUESTION FROM: Mark Raygorodsky | 6 months ago BY: Michael Rogers
Computer Science , Mathematics , Numerical Computation , ...
8
REPLIES
1.7K
VIEWS

What is the reason of insufficient memory error while using FindRoot?

QUESTION FROM: Leslaw Bieniasz | 10 months ago BY: Hans Milton
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
1.9K
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

Fitting peaks with a Voigt function

QUESTION FROM: Robertino Pilot | 2 years ago BY: Robertino Pilot
Calculus , Modeling , Numerical Computation , Wolfram Language
8
REPLIES
4.8K
VIEWS

How big a number can PrimeQ work?

QUESTION FROM: Luis Felipe Massena Misiec | 2 years ago BY: Daniel Lichtblau
Mathematica , Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
9.8K
VIEWS

Solving Generalized Heat Equation by separation of variables

QUESTION FROM: Athanasios Paraskevopoulos | 2 years ago BY: Athanasios Paraskevopoulos
Calculus , Equation Solving , Graphics and Visualization , ...
8
REPLIES
3.1K
VIEWS

Compare the symbolic solution with numerical solution

QUESTION FROM: A Afi | 3 years ago BY: Gianluca Gorni
Equation Solving , Graphics and Visualization , Mathematics , ...
8
REPLIES
3.6K
VIEWS

How to find the inverse of an InterpolatingFunction?

QUESTION FROM: Aiden G | 3 years ago BY: Eric Smith
Equation Solving , Graphics and Visualization , Modeling , ...
8
REPLIES
7.1K
VIEWS

Series is unexpectedly convergent by Wolfram|Alpha

QUESTION FROM: Tomas Torstensson | 4 years ago BY: Gianluca Gorni
Calculus , Mathematics , Numerical Computation , Wolfram|Alpha , ...
8
REPLIES
9.8K
VIEWS

I'm having problems with third type heat transfer boundary condition

QUESTION FROM: Y L | 4 years ago BY: Y L
Equation Solving , Mathematics , Numerical Computation , Physics , ...
8
REPLIES
4.6K
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

The maximum output precision of InterpolatingFunction[]?

QUESTION FROM: 袁 旭龙 | 4 years ago BY: 袁 旭龙
Import and Export , Numerical Computation , Wolfram Language
8
REPLIES
5.1K
VIEWS

Using NSolve to solve equation given by power series?

QUESTION FROM: Anonymous User | 4 years ago BY: Anonymous User
Algebra , Equation Solving , Graphics and Visualization , ...
8
REPLIES
6.5K
VIEWS

Why Wolfram|Alpha gives the right result?

QUESTION FROM: Luis Felipe Massena Misiec | 5 years ago BY: Luis Felipe Massena Misiec
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
8
REPLIES
7.5K
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

Avoid NDSolve problem with system of differential equations?

QUESTION FROM: Roberta Jakab | 6 years ago BY: Roberta Jakab
Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
10.6K
VIEWS

Solve the following non-linear integer max-problem with NMaximize?

QUESTION FROM: Christos Papahristodoulou | 7 years ago BY: Frank Kampas
Equation Solving , Optimization , Mathematics , ...
8
REPLIES
8.2K
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

Solve an ODE by NDSolve an Interpolating function

QUESTION FROM: Rafael López | 7 years ago BY: Anonymous User
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
11.7K
VIEWS

Principle of RandomSearch method in NMinimize?

QUESTION FROM: Lukas Vacek | 7 years ago BY: Lukas Vacek
Mathematica , Optimization , Mathematics , Numerical Computation , ...
8
REPLIES
9.5K
VIEWS

Increase the precision of calculations without SetPrecision in every step?

QUESTION FROM: Maha Youssef | 7 years ago BY: Daniel Lichtblau
Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
8.5K
VIEWS

Use NIntegrate with Boole and IntervalMemberQ?

QUESTION FROM: Shrihari Gopalakrishna | 7 years ago BY: Shrihari Gopalakrishna
Mathematics , Numerical Computation , Wolfram Language
8
REPLIES
4.8K
VIEWS

Get solutions to the gauged GL vortices in (1+1) dimensions?

QUESTION FROM: Benjamin Leather | 7 years ago BY: Paritosh Mokhasi
Equation Solving , Mathematics , Numerical Computation , Physics , ...
8
REPLIES
8.1K
VIEWS

[?]  Plot for numerical integration?

QUESTION FROM: Mujtaba Mozumder | 8 years ago BY: Mujtaba Mozumder
Graphics and Visualization , Mathematics , Numerical Computation , ...
8
REPLIES
9.8K
VIEWS

'N' is not accurate if I write to a file?

QUESTION FROM: Paolo Pellegrini | 8 years ago BY: Paolo Pellegrini
Numerical Computation , User Interface , Wolfram Language
8
REPLIES
5.7K
VIEWS

Illustration of fourier series for prime number counting functions

QUESTION FROM: Steven Clark | 9 years ago BY: Steven Clark
Calculus , Discrete Mathematics , Graphics and Visualization , ...
8
REPLIES
14.4K
VIEWS

Code for verification of reliable digits ?

QUESTION FROM: Dr Muh Nikson | 9 years ago BY: Dr Muh Nikson
Algebra , Calculus , Education , Equation Solving , Mathematics , ...
8
REPLIES
5K
VIEWS

Find parameters in a system of Inequalities?

QUESTION FROM: Sebastian Gonzalez | 9 years ago BY: Marco Thiel
Equation Solving , Mathematics , Numerical Computation , ...
8
REPLIES
3.7K
VIEWS

CloudDeploy issue with FormFunction and NSolve

QUESTION FROM: Balazs Kisfali | 9 years ago BY: Balazs Kisfali
Civil Engineering , Curated Data , Earth Science , ...
8
REPLIES
13.2K
VIEWS

How to do Cos 48, then Cos 49 and on up to 58 degrees

QUESTION FROM: Jake Trexel | 9 years ago BY: Jake Trexel
Mathematica , Mathematics , Numerical Computation
8
REPLIES
10.2K
VIEWS

Mathematica 8 - problem with NDSolve function for differential equation

QUESTION FROM: Jacek Michalski | 10 years ago BY: Kay Herbert
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
8
REPLIES
6.8K
VIEWS

while loop issues

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

Numerical Error with Matrix operations

QUESTION FROM: Gordon | 11 years ago BY: Gordon
Algebra , Numerical Computation , Wolfram Language
8
REPLIES
8.3K
VIEWS

Speeding up the FindMinimum function

QUESTION FROM: Matty Mookerjee | 11 years ago BY: Daniel Lichtblau
Mathematica , Optimization , Numerical Computation , Wolfram Language
8
REPLIES
13.1K
VIEWS

FindRoot troubles

QUESTION FROM: Michael Paterson | 11 years ago BY: Michael Paterson
Equation Solving , Mathematica , Numerical Computation , ...
8
REPLIES
7.9K
VIEWS

Problem with Piecewise Initial Conditions in NDSolve

QUESTION FROM: Danila Zharenkov | 12 years ago BY: Danila Zharenkov
Calculus , Equation Solving , Mathematica , Mathematics , ...
8
REPLIES
12.7K
VIEWS

NMaximize gets different results on different runs; must Quit and restart

QUESTION FROM: Mauricio Lobos | 12 years ago BY: Mauricio Lobos
Mathematica , Numerical Computation
8
REPLIES
6.7K
VIEWS

Unexpected behaviour from NMaximize optimising a stochastic function

QUESTION FROM: Cameron Turner | 0 months ago BY: Cameron Turner
Optimization , Mathematics , Numerical Computation , Wolfram Language
7
REPLIES
2.5K
VIEWS

Problem solving partial differential equation

QUESTION FROM: Dirk Brömme | 1 year ago BY: Dirk Brömme
Calculus , Equation Solving , Graphics and Visualization , ...
7
REPLIES
2.3K
VIEWS

Make code faster and in C-compatible manner?

QUESTION FROM: Ulrich Utiger | 1 year ago BY: Daniel Lichtblau
Compilation , Discrete Mathematics , High-Performance Computing , ...
7
REPLIES
11.1K
VIEWS

Plot the solution of a differential equation

QUESTION FROM: Ian P | 1 year ago BY: Gianluca Gorni
Calculus , Equation Solving , Graphics and Visualization , ...
7
REPLIES
2.2K
VIEWS

The precision of the argument function is less than working precision

QUESTION FROM: Ashish Rajyaguru | 1 year ago BY: Ashish Rajyaguru
Calculus , Mathematics , Numerical Computation , ...
7
REPLIES
3.1K
VIEWS

Interpolation, unstructured grids, and interpolation order

QUESTION FROM: W. Craig Carter | 1 year ago BY: Michael Rogers
Mathematica , Numerical Computation
7
REPLIES
18.1K
VIEWS

Numerically solving an integral: no results

QUESTION FROM: Ma Wi | 2 years ago BY: Michael Rogers
Calculus , Mathematics , Numerical Computation , Wolfram Language
7
REPLIES
3K
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

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

Define and solve formula syntax problem

QUESTION FROM: Karl S | 4 years ago BY: Rohit Namjoshi
Algebra , Equation Solving , Numerical Computation , Physics , ...
7
REPLIES
3.7K
VIEWS

Passing NDSolve through NIntegrate?

QUESTION FROM: Alex B | 4 years ago BY: Alex B
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
4.7K
VIEWS

NIntegrate command does not converge

QUESTION FROM: Aslam Kittur | 4 years ago BY: Aslam Kittur
Calculus , Mathematics , Numerical Computation , Wolfram Language
7
REPLIES
4.9K
VIEWS

Solve a system of differential equations in a loop

QUESTION FROM: Agapi Pop | 4 years ago BY: Neil Singer
Calculus , Equation Solving , Numerical Computation , Physics , ...
7
REPLIES
4.6K
VIEWS

Solving wave equation with spherical coordinates using NDSolveValue?

QUESTION FROM: Sofie Koksbang | 4 years ago BY: Updating Name
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
7.5K
VIEWS

Plot a system of differential equations in a loop

QUESTION FROM: Agapi Pop | 4 years ago BY: Bill Nelson
Calculus , Equation Solving , Graphics and Visualization , ...
7
REPLIES
3.7K
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

Symbolically solving a trigonometric system of equation

QUESTION FROM: Mateusz Lazarek | 5 years ago BY: Hans Dolhaine
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
4.8K
VIEWS

Changing free variable for a Function that results from NDsolve

QUESTION FROM: Ezra Kohavi | 5 years ago BY: Ezra Kohavi
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
4K
VIEWS

Numerical solution of multicomponent difussion in mineral

QUESTION FROM: Konstantin Solovev | 5 years ago BY: Konstantin Solovev
Earth Science , Graphics and Visualization , Mathematics , ...
7
REPLIES
8.1K
VIEWS

FindRoot for a simple nonlinear system

QUESTION FROM: Daniel Jara Heredia | 5 years ago BY: Bill Nelson
Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
4.1K
VIEWS

Passing BezierFunction to ArcLength?

QUESTION FROM: Nicholas Kitten | 5 years ago BY: Updating Name
Calculus , Mathematics , Numerical Computation , Wolfram Language
7
REPLIES
4.9K
VIEWS

Obtain numerical values with NestList on a custom function f?

QUESTION FROM: Dag Now | 5 years ago BY: Dag Now
Mathematics , Numerical Computation , Wolfram Language
7
REPLIES
5.2K
VIEWS

[?] Get hexadecimal representation for a float as a string?

QUESTION FROM: Eduardo Mendes | 6 years ago BY: Daniel Lichtblau
Computer Science , Mathematics , Numerical Computation , ...
7
REPLIES
7.2K
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

Get a numerical solution to a nonlinear ODE?

QUESTION FROM: kolod al | 7 years ago BY: Shenghui Yang
Equation Solving , Mathematics , Numerical Computation , Physics , ...
7
REPLIES
5.1K
VIEWS

Numerical anomalies in a minimax algorithm

QUESTION FROM: David Eberly | 7 years ago BY: Daniel Lichtblau
Graphics and Visualization , Mathematica , Optimization , ...
7
REPLIES
7K
VIEWS

Error fitting function to data using NIntegrate and ' (differentiation).

QUESTION FROM: Christoph Bernkopf | 7 years ago BY: Christoph Bernkopf
Algebra , Calculus , Optimization , Mathematics , Modeling , ...
7
REPLIES
8K
VIEWS

Index an arbitrary array in NDSolve to simulate white noise?

QUESTION FROM: Sandip Roy | 7 years ago BY: Daniel Lichtblau
Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
6.8K
VIEWS

2D likelihood. Calculate ellipses that contains a 95% of the area

QUESTION FROM: daniele barducci | 7 years ago BY: Anonymous User
Calculus , Equation Solving , Geometry , Mathematics , ...
7
REPLIES
7.8K
VIEWS

Why does MinPrecision affect the result of computation?

QUESTION FROM: Charudatt Kadolkar | 7 years ago BY: Charudatt Kadolkar
Mathematics , Numerical Computation , Wolfram Language
7
REPLIES
4.2K
VIEWS

Avoid trouble with NDSolve and dependent variables?

QUESTION FROM: Isaac Lee | 7 years ago BY: Alexander Trounev
Calculus , Dynamic Interactivity , Equation Solving , Mathematics , ...
7
REPLIES
8.1K
VIEWS

PDE solving - which solver is best?

QUESTION FROM: Ser Man | 7 years ago BY: Ser Man
Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
4.5K
VIEWS

Solve decoupled PDE's with NDSolve?

QUESTION FROM: Eric Smith | 7 years ago BY: Eric Smith
Equation Solving , Mathematics , Numerical Computation , ...
7
REPLIES
6.7K
VIEWS

Diffusion localised on the map of France

QUESTION FROM: André Dauphiné | 8 years ago BY: Ali Hashmi
Curated Data , Environmental Science , Equation Solving , ...
7
REPLIES
15.5K
VIEWS

Handle two 3 rows x 2 columns matrices in NonlinearModelFit?

QUESTION FROM: Jun Hui Yeoh | 9 years ago BY: Will Smith
Data Science , Mathematics , Modeling , Numerical Computation , ...
7
REPLIES
8.1K
VIEWS

Use NDSolve with conditional coefficients?

QUESTION FROM: Iuval Clejan | 9 years ago BY: Bill Simpson
Control Systems , Equation Solving , Mathematics , ...
7
REPLIES
11.5K
VIEWS

Symbolic vector generator

QUESTION FROM: Carlos Felippa | 9 years ago BY: Carlos Felippa
Mathematica , Numerical Computation , Physics
7
REPLIES
8.1K
VIEWS

EDITED:same computation gives different results

QUESTION FROM: Mike Luntz | 10 years ago BY: Daniel Lichtblau
Numerical Computation , Symbolic Computations , Wolfram Language
7
REPLIES
13.1K
VIEWS

how to use the "For" here

QUESTION FROM: YU SHANG | 10 years ago BY: YU SHANG
Data Science , Mathematica , Numerical Computation , Physics , ...
7
REPLIES
14.8K
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

Strange behavior of Round[x_, .1] -- I want Round[2.40, .1] to be 2.4

QUESTION FROM: Elaine Kant | 10 years ago BY: John Doty
Mathematica , Mathematics , Numerical Computation
7
REPLIES
8.6K
VIEWS

Problem for diagonalisation of a complex 6*6 matrix

QUESTION FROM: Jonathan Da Silva | 10 years ago BY: Michael Helmle
Algebra , Mathematica , Numerical Computation , Wolfram Language
7
REPLIES
11.7K
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
5.7K
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
19.3K
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
13.4K
VIEWS

How to do numerical integration from data set?

QUESTION FROM: luke schutzenhofer | 11 years ago BY: Sean Clarke
Calculus , Numerical Computation , Wolfram Language
7
REPLIES
15.3K
VIEWS

How do I make this summation numerical?

QUESTION FROM: Luke Foley | 12 years ago BY: Bill Simpson
Mathematica , Numerical Computation , Wolfram Language
7
REPLIES
6.4K
VIEWS

Best optimization for maximum entropy?

QUESTION FROM: Gareth Russell | 5 days ago BY: Gareth Russell
Optimization , Mathematics , Numerical Computation , ...
6
REPLIES
530
VIEWS

Using NIntegrate with nested integrals

QUESTION FROM: Max Shpak | 2 months ago BY: Max Shpak
Calculus , Mathematics , Numerical Computation , Wolfram Language
6
REPLIES
640
VIEWS

Numerical solution to Euler Lagrange equation

QUESTION FROM: Ee Kin Chan | 1 year ago BY: Ee Kin Chan
Equation Solving , Mathematics , Numerical Computation , Physics , ...
6
REPLIES
1.7K
VIEWS

Error from NDSolve: PDE coefficient doesn't evaluate to numerical value

QUESTION FROM: Nithiya V | 1 year ago BY: Nithiya V
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
2K
VIEWS

Solving nonlinear equation with integrals and beta functions

QUESTION FROM: Muhammad Fahem Bin Musa | 1 year ago BY: Bill Nelson
Algebra , Calculus , Equation Solving , Mathematics , ...
6
REPLIES
2K
VIEWS

Table of NSolve (and Solve) solutions creates extra unknown answers

QUESTION FROM: Ilan Riess | 1 year ago BY: Ilan Riess
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
2.2K
VIEWS

Integer inside [] is unexpectedly changed to a machine-precision real number

QUESTION FROM: Aki Hiro | 2 years ago BY: Aki Hiro
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
6
REPLIES
3.1K
VIEWS

Numerical integration with large initial limit

QUESTION FROM: Safinaz Salem | 2 years ago BY: Safinaz Salem
Calculus , Mathematics , Numerical Computation , Wolfram Language
6
REPLIES
2.7K
VIEWS

How to improve the accuracy of FindRoot or NDSolveValue at extreme conditions in my equation system?

QUESTION FROM: Mikoto Misaka | 2 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Graphics and Visualization , ...
6
REPLIES
4.7K
VIEWS
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