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Symbolic and numerical equation solving and root finding, differential equations, recurrence and functional equations, systems of equations, linear systems, visualization of solutions...

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How to combine variables automatically?

QUESTION FROM: Aaron Clair | 12 years ago BY: Bill Simpson
Algebra , Equation Solving , Mathematica , Symbolic Computations , ...
1
REPLIES
6.2K
VIEWS

plotting motion of two charged particles

QUESTION FROM: Hayashi Yoshiaki | 12 years ago BY: Hayashi Yoshiaki
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
6.9K
VIEWS

Can't use Solve and Findroot functions to solve this equation.

QUESTION FROM: chriskwangtun | 12 years ago BY: chriskwangtun
Algebra , Equation Solving , Mathematica , Wolfram Language
2
REPLIES
10.4K
VIEWS

How to solve inequality with some conditions in Mathematica?

QUESTION FROM: Peng Liu | 12 years ago BY: Mariano Gonzalez
Calculus , Equation Solving , Mathematica , Wolfram Language
2
REPLIES
13.3K
VIEWS

Need help with DSolve inside Manipulate

QUESTION FROM: aronzy87 mohammed | 12 years ago BY: aronzy87 mohammed
Calculus , Dynamic Interactivity , Equation Solving , Mathematica , ...
2
REPLIES
4.2K
VIEWS

How can I write a simple program to give several outputs for 2 inputs?

QUESTION FROM: Drew Hammerman | 12 years ago BY: Mirek M
Dynamic Interactivity , Equation Solving , Numerical Computation , ...
3
REPLIES
8.3K
VIEWS

The Newton's method in the mean of Interval

QUESTION FROM: Julia Ilkiv | 12 years ago BY: Anonymous User
Equation Solving , Mathematica
3
REPLIES
5.7K
VIEWS

Solving Interpolating Function

QUESTION FROM: Amy Gordon | 12 years ago BY: Ilian Gachevski
Equation Solving , Mathematica , Numerical Computation , ...
5
REPLIES
4.6K
VIEWS

Hi this is my first post and I have some questions

QUESTION FROM: shin Wang | 12 years ago BY: shin Wang
Calculus , Equation Solving , Mathematica , Wolfram Language
4
REPLIES
3.9K
VIEWS

Can't Solve Exponential Equation in Mathematica

QUESTION FROM: Amy Gordon | 12 years ago BY: Amy Gordon
Equation Solving , Mathematica
2
REPLIES
12.7K
VIEWS

Why roundoff error in solving cubic equation?

QUESTION FROM: Syeda Sarah | 12 years ago BY: Frank Kampas
Equation Solving , Mathematica , Mathematics , Wolfram|Alpha
1
REPLIES
3.6K
VIEWS

Using NSolve does not work : non linear equations

QUESTION FROM: Marcelo De Cicco | 12 years ago BY: David Keith
Equation Solving , Mathematica , Wolfram Language
13
REPLIES
14.4K
VIEWS

How to input an equation with implicit variables?

QUESTION FROM: Tom Rudelius | 12 years ago BY: Bruce Miller
Equation Solving , Mathematica , Wolfram Language
2
REPLIES
5.4K
VIEWS

DSolve fails to solve a very simple boundary value problem

QUESTION FROM: Konstantin Nosov | 12 years ago BY: Konstantin Nosov
Calculus , Equation Solving , Mathematica
10
REPLIES
12.2K
VIEWS

Piecewise, Evaluate, and NDSolve

QUESTION FROM: Sasha Kasha | 12 years ago BY: Sasha Kasha
Equation Solving , Mathematica , Mathematics
6
REPLIES
9.1K
VIEWS

Get rid of a variable using Simplify/Assuming

QUESTION FROM: Fabian Wiek | 12 years ago BY: Michael Rogers
Equation Solving , Mathematica
3
REPLIES
6.7K
VIEWS

What do the Root symbols mean?

QUESTION FROM: Marcin Kujawa | 13 years ago BY: Sean Clarke
Equation Solving , Mathematica , Wolfram Language
2
REPLIES
6.6K
VIEWS

How do I run programs from Mathematica 5 or 6 in Mathematica 9 ??

QUESTION FROM: Robert Lurie | 13 years ago BY: Sean Clarke
Equation Solving , Mathematica
2
REPLIES
3.2K
VIEWS

How can I automate parameter sensitivity?

QUESTION FROM: Pat Mac | 13 years ago BY: Pat Mac
Equation Solving , Mathematica , Numerical Computation
1
REPLIES
5.2K
VIEWS

Non-linear equation system for a two link manipulator

QUESTION FROM: Muhammad Farid | 13 years ago BY: farid khattak
Equation Solving , Mathematica , Mathematics , Wolfram Language
24
REPLIES
9K
VIEWS

How would I solve for a variable in this ugly equation?

QUESTION FROM: Mel N | 13 years ago BY: Mel N
Algebra , Equation Solving , Mathematica , Mathematics
2
REPLIES
4.6K
VIEWS

Why doesn't e^i equal 1?

QUESTION FROM: Kaleb Burklow | 13 years ago BY: Ilian Gachevski
Algebra , Calculus , Equation Solving , Mathematics
2
REPLIES
6.1K
VIEWS

3 parameter Weibull distribution integration issues

QUESTION FROM: Chen-Ping Yu | 13 years ago BY: Youngjoo Chung
Calculus , Computer Science , Equation Solving , Mathematica , ...
5
REPLIES
11.7K
VIEWS

Plot solutions to NDSolve while solution is being computed

QUESTION FROM: Francisco Obando | 13 years ago BY: Arnoud Buzing
Dynamic Interactivity , Equation Solving , ...
1
REPLIES
5.8K
VIEWS

Singularity problem in “NDSolve” in Mathematica

QUESTION FROM: moumita das | 13 years ago BY: Frank Kampas
Equation Solving , Mathematica , Physics
3
REPLIES
21.2K
VIEWS

Which method does Mathematica use in NSolve for one variable functions?

QUESTION FROM: selahittin cinar | 13 years ago BY: selahittin cinar
Equation Solving , Mathematica , Mathematics
2
REPLIES
7K
VIEWS

Solve returns the variable to be solved for as a dependent variable

QUESTION FROM: Roman Groger | 13 years ago BY: Roman Groger
Equation Solving , Mathematica , User Interface
1
REPLIES
2K
VIEWS

How to use state-space based differential quadrature method in Wolfram to find the roots

QUESTION FROM: Ahmad AlMamo | 9 days ago
Algebra , Equation Solving , Mathematics , Modeling , ...
0
REPLIES
120
VIEWS

How to combine a quadratic curve and a line to form an equation with only quadratic terms?

QUESTION FROM: Bill Blair | 22 days ago BY: Updating Name
Algebra , Equation Solving , Mathematics , Wolfram Language
4
REPLIES
230
VIEWS

Picking a specific output from a function in the selection parameter of Solve[]

QUESTION FROM: Mitchell Sandlin | 2 months ago BY: Eric Rimbey
Algebra , Equation Solving , Mathematics , Wolfram Language
6
REPLIES
335
VIEWS

Is there any way to modify the integration domain in course of NDSolve operation?

QUESTION FROM: Leslaw Bieniasz | 4 months ago
Calculus , Equation Solving , Numerical Computation
0
REPLIES
456
VIEWS

Computation with xAct

QUESTION FROM: Debojyoti Mondal | 6 months ago
Algebra , Equation Solving , Mathematics , Packages , Wolfram Language
0
REPLIES
1.7K
VIEWS

Can't finish calculation pertaining to elementary particles and the TOE

QUESTION FROM: Eran Lavi | 9 months ago BY: Eran Lavi
Algebra , Equation Solving , Mathematics , Physics , Wolfram Language
4
REPLIES
1.5K
VIEWS

Errors in solving a complex equation: FindRoot and NIntegrate cannot converge

QUESTION FROM: S. Gallagher | 11 months ago
Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
1.5K
VIEWS

Help with optimum initial conditions for electron interaction

QUESTION FROM: Arif Khan | 0 months ago
Calculus , Equation Solving , Graphics and Visualization , ...
0
REPLIES
1.1K
VIEWS

Unexpected result in equation elimination from Wolfram Alpha

QUESTION FROM: Ron Hartikka | 1 year ago BY: Ron Hartikka
Algebra , Equation Solving , Mathematics , Wolfram|Alpha
2
REPLIES
1.8K
VIEWS

Avoid singularity in TOV equations

QUESTION FROM: Sebastián Moreno Chalacá | 1 year ago
Algebra , Equation Solving , Graphics and Visualization , ...
0
REPLIES
1.3K
VIEWS

Solving a 4th- PDE Numerically?

QUESTION FROM: M.A.A Ahmed | 1 year ago
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
1.3K
VIEWS

Solving system of equations gives unmatched results

QUESTION FROM: Sami Heidari | 1 year ago
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
0
REPLIES
1.4K
VIEWS

DSolve and DirichletConditions in 2D

QUESTION FROM: Mike T | 1 year ago
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
0
REPLIES
1.1K
VIEWS

Applying the DSolveChangeVariables function

QUESTION FROM: Sinval Santos | 1 year ago
Calculus , Equation Solving , Symbolic Computations , Wolfram Language
0
REPLIES
1.4K
VIEWS

In terms of performance, how to get a solution to this equation with y being a perfect square ?

QUESTION FROM: Laël Cellier | 1 year ago BY: Daniel Lichtblau
Algebra , Discrete Mathematics , Equation Solving , Mathematics , ...
1
REPLIES
2K
VIEWS

Analytically solving this system of 2nd order PDEs

QUESTION FROM: Safinaz Salem | 1 year ago BY: Bill Nelson
Calculus , Equation Solving , Graphics and Visualization , ...
1
REPLIES
2.1K
VIEWS

Not able to solve partial differential equation

QUESTION FROM: Partha Kumar Paul | 1 year ago BY: EDITORIAL BOARD
Calculus , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
1.2K
VIEWS

Calculation of field equation and extract metric using xAct package

QUESTION FROM: Debojyoti Mondal | 1 year ago
Algebra , Equation Solving , Mathematics , Packages , Wolfram Language
0
REPLIES
2.2K
VIEWS

Transforming CoefficitenList[] output into set of equations to use in Solve[]

QUESTION FROM: Guido Nierhauve | 2 years ago BY: Sotiris Michos
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
1
REPLIES
1.7K
VIEWS

Help in solving a PDE?

QUESTION FROM: Sami Heidari | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
1.4K
VIEWS

Need help solving an equation

QUESTION FROM: Melker Sjölin | 2 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
1.4K
VIEWS

Numerical instability in simulation

QUESTION FROM: Ee Kin Chan | 2 years ago
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
1.3K
VIEWS

Solving differential equation depending on radial and time parameter

QUESTION FROM: Leo Murphy | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
5
REPLIES
2.5K
VIEWS

Would anyone help/guide how to solve the following system

QUESTION FROM: Sajjad Ahmad | 2 years ago
Equation Solving , Mathematics , Wolfram Language
0
REPLIES
1.4K
VIEWS

What can be the reason of the poor accuracy of NDSolve over the first integration step?

QUESTION FROM: Leslaw Bieniasz | 2 years ago
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
1.8K
VIEWS

Code for Skin friction or Nusselt number in 2 variables instead of 4

QUESTION FROM: Abid Hussain | 2 years ago
Calculus , Equation Solving , Mathematics , Wolfram Language
0
REPLIES
1.3K
VIEWS

Including absorbing boundary (surface) for a continuous stochastic process on a complex domain

QUESTION FROM: Cameron Turner | 2 years ago
Equation Solving , Finance , Graphics and Visualization , ...
0
REPLIES
1.6K
VIEWS

DSolve stuck (infinite loading) with simple PDEs

QUESTION FROM: Mathematica Novice | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
1.6K
VIEWS

Giving values of boundary conditions while solving a system of non-linear equations

QUESTION FROM: Nithiya V | 2 years ago BY: Nithiya V
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
17
REPLIES
2.8K
VIEWS

Joule Thomson expansion of black hole

QUESTION FROM: Debojyoti Mondal | 2 years ago BY: Ronald Riegert
Equation Solving , Graphics and Visualization , Mathematics , ...
5
REPLIES
3.3K
VIEWS

Solving an equation with fraction powers?

QUESTION FROM: Bob Kakmak | 2 years ago BY: Mariusz Iwaniuk
Algebra , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
1.7K
VIEWS

How do I separate or categorize terms of a function of (x,t,u)

QUESTION FROM: Nomsa Ledwaba | 2 years ago
Algebra , Equation Solving , Mathematics , Wolfram Language
0
REPLIES
1.9K
VIEWS

Solving stationary heat equation (Laplace-Equation) with 2 regions and 2 different materials

QUESTION FROM: Dirk Brömme | 2 years ago BY: Dirk Brömme
Calculus , Engineering , Equation Solving , ...
1
REPLIES
2K
VIEWS

Unable to state a simple square-well Schrödinger problem: "This system cannot be solved"

QUESTION FROM: Christer Gustafsson | 2 years ago BY: Christer Gustafsson
Algebra , Equation Solving , Mathematics , Physics , Wolfram Language
2
REPLIES
2.8K
VIEWS

How can I keep a list structure in NDSolve

QUESTION FROM: Iuval Clejan | 2 years ago BY: Christopher French
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
1
REPLIES
3.2K
VIEWS

How to couple equations for temperature field over different domains (e.g. wall and atmosphere)

QUESTION FROM: Oleg Kmechak | 2 years ago
Equation Solving , Modeling , Physics , Wolfram Language
0
REPLIES
1.5K
VIEWS

How to find a function for decision variable

QUESTION FROM: Shafa Hananta | 2 years ago
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
0
REPLIES
1.6K
VIEWS

How can I solve a system of ODE system using RKF45 method with shoting technique?

QUESTION FROM: J Prakash | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Graphics and Visualization , ...
1
REPLIES
2K
VIEWS

Plot the solution of a differential equation

QUESTION FROM: Ian P | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Graphics and Visualization , ...
7
REPLIES
2.8K
VIEWS

Tilting beam with the center of mass over an edge

QUESTION FROM: Felix Toperczer | 2 years ago
Calculus , Dynamic Interactivity , Equation Solving , ...
0
REPLIES
1.4K
VIEWS

Numerical Simulation of Damped, Driven Nonlinear Waves with Extended Initial Conditions

QUESTION FROM: Athanasios Paraskevopoulos | 2 years ago
Equation Solving , Graphics and Visualization , Mathematics , ...
0
REPLIES
1.9K
VIEWS

Can anyone verify these factors of the largest RSA number on Wikipedia?

QUESTION FROM: Bobby Joe Snyder | 2 years ago
Algebra , Data Science , Equation Solving , Mathematics , ...
0
REPLIES
2.3K
VIEWS

NSolve and FindRoot unable to solve system of trig equations

QUESTION FROM: Alice Wang | 2 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
2.3K
VIEWS

Constrained minimization of a function whose minimum is exactly zero

QUESTION FROM: Alfred Svarc | 2 years ago BY: Alfred Svarc
Equation Solving , Optimization , Mathematics , ...
1
REPLIES
1.9K
VIEWS

How to impose a neural network to solve a PDE problem step by step?

QUESTION FROM: Faz 1 | 2 years ago
Calculus , Data Science , Equation Solving , Mathematics , ...
0
REPLIES
1.8K
VIEWS

Validating analytical solution of an equation

QUESTION FROM: Debojyoti Mondal | 2 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
1
REPLIES
1.8K
VIEWS

Manipulate doesn't work on fresh kernel

QUESTION FROM: Andrea Naticchi | 2 years ago BY: EDITORIAL BOARD
Discrete Mathematics , Dynamic Interactivity , Equation Solving , ...
6
REPLIES
2.4K
VIEWS

NDSolveValue in FEM not finish

QUESTION FROM: Akira O | 2 years ago
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
1.6K
VIEWS

How to avoid NDSolve::ndcf: Repeated convergence test failure?

QUESTION FROM: Leslaw Bieniasz | 2 years ago
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
2.3K
VIEWS

Fitting Solution of a DE to a function

QUESTION FROM: Lehel Csillag | 2 years ago BY: Denis Ivanov
Calculus , Dynamic Interactivity , Equation Solving , Mathematics , ...
1
REPLIES
2.2K
VIEWS

Define the domain of symbolic variables for a matrix when solving a system of linear equations?

QUESTION FROM: Russell Michael | 2 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Wolfram Language
7
REPLIES
2.9K
VIEWS

Solve a system of linear equations?

QUESTION FROM: Pontus Vikstål | 2 years ago BY: Gianluca Gorni
Equation Solving , Mathematics , Symbolic Computations , ...
7
REPLIES
9.2K
VIEWS

How to improve solution accuracy between grid points while solving ODEs with NDSolve fixed grids

QUESTION FROM: Leslaw Bieniasz | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
1
REPLIES
2.2K
VIEWS

Simplifying/reducing system of equations

QUESTION FROM: Frédéric Bourgeon | 2 years ago BY: Bill Nelson
Equation Solving , Mathematics , Wolfram|Alpha
2
REPLIES
2.7K
VIEWS

Can't get the particular solution from the general and the complementary

QUESTION FROM: P. Marrone | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
1
REPLIES
2.5K
VIEWS

No output when optimising an integration function

QUESTION FROM: Anne Shirley | 2 years ago BY: Ankit Kantheti
Calculus , Economics , Equation Solving , Mathematics , ...
2
REPLIES
3.3K
VIEWS

Getting Wrong Numbers in Output for a Quantum Mechanics problem

QUESTION FROM: خالد رافع | 2 years ago BY: Gianluca Gorni
Equation Solving , Mathematics , Physics , Symbolic Computations , ...
6
REPLIES
2.1K
VIEWS

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

QUESTION FROM: user 12 | 2 years ago
Calculus , Equation Solving , Graphics and Visualization , ...
0
REPLIES
1.7K
VIEWS

DSolve[ ] returns Input again?

QUESTION FROM: jose hoyos | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Optimization , Wolfram Language
3
REPLIES
7.6K
VIEWS

Mark the corresponding time point when switching the switch

QUESTION FROM: James James | 2 years ago
Calculus , Equation Solving , Graphics and Visualization , ...
0
REPLIES
2.2K
VIEWS

Why doesn't "Reduce" function combine some results succinctly？

QUESTION FROM: Zhenyu Zeng | 2 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
2.2K
VIEWS

Solve takes too long with parametric system

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hongyi Zhao
Algebra , Equation Solving , High-Performance Computing , ...
2
REPLIES
3.3K
VIEWS

Solving a system of PDEs (asymptotic expansion)

QUESTION FROM: Iskinder Arsano | 3 years ago
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
0
REPLIES
1.4K
VIEWS

FindMinimum error related to NDSolve

QUESTION FROM: Carles Lopez | 3 years ago BY: Gianluca Gorni
Calculus , Data Science , Equation Solving , Mathematics , ...
1
REPLIES
2.3K
VIEWS

NDSolve error:Equation or list of equations expected

QUESTION FROM: Anderson Coelho | 3 years ago BY: Gianluca Gorni
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
2.4K
VIEWS

Seeking techniques for detailed step-by-step solution of integral equation transformation

QUESTION FROM: Rob Leny | 3 years ago BY: Rohit Namjoshi
Calculus , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
2.7K
VIEWS

Error solving system of equations: not a quantified system of equations and inequalities

QUESTION FROM: Saroj Dattatreya | 3 years ago BY: Saroj Dattatreya
Algebra , Calculus , Equation Solving , Mathematics , ...
2
REPLIES
2.6K
VIEWS

Solving a system of linear equations with a parameter.

QUESTION FROM: Hongyi Zhao | 3 years ago BY: Hongyi Zhao
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
4
REPLIES
4.4K
VIEWS

Accessing conditions from DSolve

QUESTION FROM: Paul Warburton | 3 years ago BY: Gianluca Gorni
Algebra , Calculus , Dynamic Interactivity , Equation Solving , ...
1
REPLIES
2.2K
VIEWS

Doubt about how to solve the system

QUESTION FROM: Anderson Coelho | 3 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
1
REPLIES
2.1K
VIEWS

How to eliminate apparent memory leaks?

QUESTION FROM: Leslaw Bieniasz | 3 years ago
Equation Solving , Mathematics , Numerical Computation , ...
0
REPLIES
1.5K
VIEWS

Difference between Sign function and normalizing a vector?

QUESTION FROM: Ciel Ou | 3 years ago BY: Eric Rimbey
Equation Solving , Mathematics , Wolfram Language
1
REPLIES
2.2K
VIEWS

How can I obtain a solution for this system of equations?

QUESTION FROM: Raquel Salvador | 3 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
2
REPLIES
2.9K
VIEWS
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