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Numerical Computation

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

Discussions List

Solver throws errors for non-Newtonian fluids in case of an extension to the documentation example

QUESTION FROM: user 12 | 1 year ago

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REPLIES

1.4K

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Which parameters of NDSolve to change to get a more accurate PDE solution?

QUESTION FROM: Leslaw Bieniasz | 1 year ago BY: Updating Name

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

3.7K

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What is the best accuracy available, of PDE solving?

QUESTION FROM: Leslaw Bieniasz | 1 year ago BY: Updating Name

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

1.8K

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Error solving nonlinear coupled ODE: ndnum: Encountered non-numerical value for a derivative

QUESTION FROM: Muhammad Usman | 1 year ago BY: Muhammad Usman

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

2.2K

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Delay Differential Equations with variable delay

QUESTION FROM: Richard Jensen | 1 year ago BY: Richard Jensen

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

1.8K

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Mark the corresponding time point when switching the switch

QUESTION FROM: James James | 1 year ago

Calculus , Equation Solving , Graphics and Visualization , ...

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REPLIES

1.9K

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 , ...

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REPLIES

3.1K

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NIntegrate on Python function

QUESTION FROM: Ermanno Citraro | 1 year ago

Calculus , External Programs and Systems , Mathematics , ...

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REPLIES

1.2K

VIEWS

Volterra integral doesn't work

QUESTION FROM: Jabir Hakami | 1 year ago BY: Gianluca Gorni

Calculus , Mathematics , Numerical Computation , Physics , ...

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REPLIES

1.6K

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NIntegrate::slwcon error in Rolf Winter’s problem

QUESTION FROM: Hongyi Zhao | 2 years ago BY: Hongyi Zhao

Calculus , Mathematics , Numerical Computation , Wolfram Language

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REPLIES

2.5K

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How to eliminate the error FindRoot::lstol?

QUESTION FROM: Hongyi Zhao | 2 years ago BY: Hongyi Zhao

Algebra , Equation Solving , Graphics and Visualization , ...

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REPLIES

2.5K

VIEWS

Several errors from copied NDSolve code

QUESTION FROM: Mohsin Ahmad Bhat | 2 years ago BY: Mohsin Ahmad Bhat

Calculus , Equation Solving , Graphics and Visualization , ...

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REPLIES

1.9K

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How can I keep a list structure in NDSolve

QUESTION FROM: Iuval Clejan | 1 year ago BY: Christopher French

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

2.7K

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Trapezoidal method for NDSolve?

QUESTION FROM: James James | 2 years ago BY: Updating Name

Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

2.9K

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Why NDSolve is producing unexpected results, independent of some input parameters?

QUESTION FROM: John Wick | 2 years ago BY: Michael Rogers

Calculus , Equation Solving , Graphics and Visualization , ...

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REPLIES

3.9K

VIEWS

NDSolve doesn't produce a smooth curve

QUESTION FROM: Xiangyang Zhou | 2 years ago BY: Bill Nelson

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

2.2K

VIEWS

ParametricNDSolve error: Dependent variables cannot depend on parameters

QUESTION FROM: Carles Lopez | 2 years ago BY: Gianluca Gorni

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

VIEWS

FindMinimum error related to NDSolve

QUESTION FROM: Carles Lopez | 2 years ago BY: Gianluca Gorni

Calculus , Data Science , Equation Solving , Mathematics , ...

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REPLIES

VIEWS

NDSolve error:Equation or list of equations expected

QUESTION FROM: Anderson Coelho | 2 years ago BY: Gianluca Gorni

Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

2.1K

VIEWS

FindRoot error: function value is not a list of numbers

QUESTION FROM: Alan White | 2 years ago BY: Alan White

Algebra , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

5.2K

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How to eliminate apparent memory leaks?

QUESTION FROM: Leslaw Bieniasz | 2 years ago

Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

1.3K

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 , ...

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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

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REPLIES

2.7K

VIEWS

Is there a way to be able to compute these integrals efficiently?

QUESTION FROM: M M | 2 years ago BY: Updating Name

Calculus , Mathematics , Numerical Computation , ...

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REPLIES

2.8K

VIEWS

Does NDSolve step size for coupled ODEs get bottlenecked by stiffest one?

QUESTION FROM: Iuval Clejan | 2 years ago

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

VIEWS

Solve for a linear system with equalities and ineqaulities

QUESTION FROM: Xiangyang Zhou | 2 years ago BY: Xiangyang Zhou

Algebra , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

2.6K

VIEWS

Calculate the maximum possible value of dt

QUESTION FROM: James James | 2 years ago BY: James James

Optimization , Mathematics , Numerical Computation , Wolfram Language

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REPLIES

2.6K

VIEWS

How to solve this difficult nonlinear equation involving InverseErf?

QUESTION FROM: Leslaw Bieniasz | 2 years ago BY: Bill Nelson

Algebra , Equation Solving , Mathematics , Numerical Computation , ...

LIKES

REPLIES

2.9K

VIEWS

Doubt about how to mathematically formulate my problem

QUESTION FROM: Anderson Coelho | 2 years ago BY: Bill Nelson

Equation Solving , Numerical Computation , Physics , Wolfram Language

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REPLIES

2.2K

VIEWS

Code run in 5 minutes with V12 but runs forever with V13.3

QUESTION FROM: Rafael Nepomechie | 2 years ago BY: Rafael Nepomechie

Calculus , Mathematics , Numerical Computation , Wolfram Language

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REPLIES

2.4K

VIEWS

How to solve the Triple integral with limits numerically?

QUESTION FROM: Mohammed Saleh | 2 years ago BY: Gianluca Gorni

Calculus , Mathematics , Numerical Computation , Wolfram Language

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REPLIES

1.9K

VIEWS

Avoid time-consuming warnings in FindRoot with thermodynamic properties

QUESTION FROM: Otto Linsuain | 2 years ago BY: Mariusz Iwaniuk

Algebra , Equation Solving , Mathematics , Numerical Computation , ...

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REPLIES

4.2K

VIEWS

Question about Incidence function for SIR model

QUESTION FROM: Athanasios Paraskevopoulos | 2 years ago

Biological Sciences , Calculus , Equation Solving , ...

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REPLIES

1.2K

VIEWS

Problem about how to find a length related to the Nusselt number

QUESTION FROM: Fredom W. | 2 years ago BY: Otto Linsuain

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

LIKES

REPLIES

3.4K

VIEWS

Simplify Gamma product using Gauss' formula?

QUESTION FROM: Robert Reynolds | 2 years ago BY: Robert Reynolds

Algebra , Mathematics , Numerical Computation

LIKES

REPLIES

3.9K

VIEWS

Numerically solving an integral: no results

QUESTION FROM: Ma Wi | 2 years ago BY: Michael Rogers

Calculus , Mathematics , Numerical Computation , Wolfram Language

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REPLIES

VIEWS

Optimization with recursive variables

QUESTION FROM: Christian Vitale | 2 years ago BY: Gianluca Gorni

Optimization , Mathematics , Numerical Computation , ...

LIKES

REPLIES

2.7K

VIEWS

Help with double numerical integration (Inverse Fourier and Laplace Transforms)

QUESTION FROM: Daniel Urbanski | 2 years ago BY: Daniel Urbanski

Calculus , Mathematics , Numerical Computation , Wolfram Language

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REPLIES

2.6K

VIEWS

DSolve error: variables to be solved for in an essentially non-algebraic way

QUESTION FROM: Shivi Sv | 2 years ago BY: Shivi Sv

Calculus , Equation Solving , Graphics and Visualization , ...

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REPLIES

2.8K

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 , ...

LIKES

REPLIES

4.7K

VIEWS

How can I best mimic Fortran Double Precision in MMA ?

QUESTION FROM: David Mackay | 2 years ago BY: David Mackay

Numerical Computation , Physics , Wolfram Language

LIKES

REPLIES

4.5K

VIEWS

Speed up Nintegrate for certain range of function's input

QUESTION FROM: John Wick | 2 years ago BY: Gianluca Gorni

Calculus , Mathematics , Numerical Computation , Wolfram Language

LIKES

REPLIES

3.1K

VIEWS

Problems in Fracture mechanics, how to use Mathematica to calculate integrals with singular points?

QUESTION FROM: S L | 2 years ago

Calculus , Mathematics , Numerical Computation , Wolfram Language

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REPLIES

1.3K

VIEWS

Inner + Outer optimization: is a killer-performance routine?

QUESTION FROM: Fabio Rondelli | 2 years ago BY: Daniel Lichtblau

Optimization , Mathematics , Numerical Computation , Wolfram Language

LIKES

REPLIES

2.4K

VIEWS

NDSolve with DiracDelta gives unexpected answer

QUESTION FROM: Eric Michielssen | 2 years ago BY: Michael Rogers

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

LIKES

REPLIES

3.5K

VIEWS

How to solve FindRoot error in NDSolve?

QUESTION FROM: Sara Moezzi | 2 years ago

Calculus , Equation Solving , Mathematics , Numerical Computation , ...

LIKES

REPLIES

1.7K

VIEWS

Minimization error: constraints are not valid

QUESTION FROM: Felix Toperczer | 2 years ago BY: Gianluca Gorni

Calculus , Optimization , Mathematics , Numerical Computation , ...

LIKES

REPLIES

3.1K

VIEWS

Using NMinimize over (non-convex) large problems

QUESTION FROM: Christian Vitale | 2 years ago BY: Daniel Lichtblau

Optimization , Mathematics , Numerical Computation , Wolfram Language

LIKES

REPLIES

VIEWS

Using a rule as an input to a function?

QUESTION FROM: Nir Livne | 2 years ago BY: Nir Livne

Algebra , Equation Solving , Mathematics , Numerical Computation , ...

LIKES

REPLIES

2.7K

VIEWS

How to calculate steady solution of nonlinear differential equation with forced oscillation?

QUESTION FROM: Aki Hiro | 2 years ago BY: Daniel Lichtblau

Calculus , Equation Solving , Graphics and Visualization , ...

LIKES

REPLIES

2.8K

VIEWS

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