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Equation Solving
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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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Can you find the PseudoInverse of this matrix?

QUESTION FROM: Douglas Youvan | 11 years ago BY: Frank Kampas
Algebra , Discrete Mathematics , Equation Solving , ...
4
REPLIES
9.4K
VIEWS

How to see full text instead of skeleton <<1>>?

QUESTION FROM: Aleksei Zadvorkin | 11 years ago BY: Aleksei Zadvorkin
Equation Solving , Mathematica , Optics , Physics
4
REPLIES
11.7K
VIEWS

How can I find the sum of squared errors in a 3d table?

QUESTION FROM: jethro holcroft | 11 years ago BY: Denis KIss
Data Science , Equation Solving , Graphics and Visualization , ...
4
REPLIES
18.4K
VIEWS

Why Mathematica Can't Solve this Equation

QUESTION FROM: Songklod Rastapana | 11 years ago BY: Bill Simpson
Equation Solving , Mathematica , Mathematics , Wolfram Language
4
REPLIES
6K
VIEWS

Help me to solve the simultaneous equations

QUESTION FROM: Aadhi A | 11 years ago BY: Simon Cadrin
Algebra , Equation Solving , Wolfram Language
4
REPLIES
7.6K
VIEWS

nonlinear system problem (DSolve syntax)

QUESTION FROM: diana giarola | 11 years ago BY: diana giarola
Calculus , Engineering , Equation Solving , Mathematica , ...
4
REPLIES
6.3K
VIEWS

Error with Solve[] and floating-point coefficients

QUESTION FROM: Giovanni Ferdina | 11 years ago BY: Giovanni Ferdina
Algebra , Equation Solving , Wolfram Language
4
REPLIES
7.4K
VIEWS

How to solve a higher order partial differential equation with boundaries

QUESTION FROM: ihsan faseel | 11 years ago BY: Udo Krause
Calculus , Equation Solving , Mathematica , Wolfram Language
4
REPLIES
19.9K
VIEWS

('x','y','z') from RevolutionPlot3D('a')

QUESTION FROM: Greg | 11 years ago BY: Greg
Algebra , Equation Solving , Geometry , Graphics and Visualization , ...
4
REPLIES
7.7K
VIEWS

how do I find out how wolfram turned my trig equation into sqrt fractions?

QUESTION FROM: Kyle wright | 11 years ago BY: Kyle wright
Equation Solving , Physics , Wolfram Language
4
REPLIES
5K
VIEWS

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

QUESTION FROM: sanaz ka | 11 years ago BY: sanaz ka
Algebra , Calculus , Equation Solving , Numerical Computation , ...
4
REPLIES
5.8K
VIEWS

Need help in using Resolve to prove equality over specified domain

QUESTION FROM: Glen Deering | 11 years ago BY: Glen Deering
Algebra , Calculus , Equation Solving , Mathematica , Wolfram Language
4
REPLIES
8.1K
VIEWS

Please let me know why Mathematica gives error message!

QUESTION FROM: Changsoo Lee | 11 years ago BY: Changsoo Lee
Equation Solving , Numerical Computation , Wolfram Language
4
REPLIES
7.2K
VIEWS

Can Mathematica modify lightly the inital conditions of NDSolve??

QUESTION FROM: Arnau Jim | 11 years ago BY: Frank Kampas
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
4
REPLIES
7K
VIEWS

Plotting DSolve outputs?

QUESTION FROM: Tim Kirkpatrick | 11 years ago BY: Tim Kirkpatrick
Calculus , Equation Solving , Mathematica , Wolfram Language
4
REPLIES
11.4K
VIEWS

Multivariable system of equations

QUESTION FROM: Jacob Simon | 11 years ago BY: Daniel Lichtblau
Algebra , Equation Solving , Mathematica , Wolfram Language
4
REPLIES
11.4K
VIEWS

obscure bug using FindRoot[ Integrate[...

CONTRIBUTED BY: Mike Luntz | 11 years ago BY: Mike Luntz
Equation Solving , Mathematica , Numerical Computation , ...
4
REPLIES
9.6K
VIEWS

using the solutions of differential equations system

QUESTION FROM: saysics saja | 12 years ago BY: saysics saja
Calculus , Equation Solving , Mathematica , Wolfram Language
4
REPLIES
8.2K
VIEWS

WhenEvent issue with vector valued diffeq

QUESTION FROM: David Keith | 12 years ago BY: David Keith
Calculus , Equation Solving , Mathematica , Numerical Computation , ...
4
REPLIES
8.8K
VIEWS

The system of equations with two variables.

QUESTION FROM: Denis Denk | 12 years ago BY: Denis Denk
Equation Solving , Graphics and Visualization , Mathematica , ...
4
REPLIES
8.5K
VIEWS

Initial Value Problem Questions

QUESTION FROM: David Arnold | 12 years ago BY: David Arnold
Calculus , Equation Solving , Graphics and Visualization , ...
4
REPLIES
12.3K
VIEWS

Difference Equation Model: Loan Calculations

QUESTION FROM: Nick Leroux | 12 years ago BY: David Reiss
Equation Solving , Mathematics , Modeling , Wolfram Language
4
REPLIES
6K
VIEWS

How would you show this?

QUESTION FROM: Anonymous User | 12 years ago BY: David Reiss
Algebra , Equation Solving , Wolfram Language
4
REPLIES
2.9K
VIEWS

ParallelTable vs ParallelSubmit

QUESTION FROM: Matthias Neuer | 12 years ago BY: Chad Knutson
Calculus , Equation Solving , High-Performance Computing , ...
4
REPLIES
11.1K
VIEWS

How do I solve a profile interval (statistics)

QUESTION FROM: Casper YC | 12 years ago BY: Casper YC
Equation Solving , Mathematics , Numerical Computation , ...
4
REPLIES
7.1K
VIEWS

DSolve doesn't know the answer to this differential-algebraic system

QUESTION FROM: ppphhw ppphhw | 12 years ago BY: ppphhw ppphhw
Algebra , Calculus , Equation Solving , Wolfram Language
4
REPLIES
5.1K
VIEWS

Issue with Solve. Transition from Mathematica 9 to 10

QUESTION FROM: D PrEs | 12 years ago BY: Bruce Miller
Equation Solving , Mathematica , Numerical Computation , ...
4
REPLIES
5.3K
VIEWS

Help me to resolve this syntax issue

QUESTION FROM: Jaydeep Yadav | 12 years ago BY: Jaydeep Yadav
Equation Solving , Mathematica , Mathematics , Modeling , ...
4
REPLIES
6.6K
VIEWS

Need help with solving in Alpha and getting the steps

CONTRIBUTED BY: Janet Gordon | 12 years ago BY: Janet Gordon
Algebra , Equation Solving , Wolfram|Alpha , Wolfram Language
4
REPLIES
8.3K
VIEWS

How do I find all the zero's in a Conditional Expression for the given exp?

QUESTION FROM: Wayne Roest | 12 years ago BY: Bill Simpson
Algebra , Calculus , Equation Solving , Mathematica , Optimization , ...
4
REPLIES
6.7K
VIEWS

Why the complicated Solve output?

QUESTION FROM: Stefan AS | 12 years ago BY: Stefan AS
Equation Solving , Wolfram Language
4
REPLIES
2.3K
VIEWS

Efficient way to solve parametric equations?

QUESTION FROM: Julian Stuermer | 12 years ago BY: Updating Name
Equation Solving , Mathematica , Numerical Computation
4
REPLIES
7.3K
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

How does FindRoot work?

QUESTION FROM: HIGINIO RAMOS | 12 years ago BY: Ilian Gachevski
Equation Solving , Mathematica , Mathematics , ...
4
REPLIES
8.5K
VIEWS

Is it possible to find the equations of motion with Mathematica?

QUESTION FROM: Alexsandro Mota | 12 years ago BY: David Keith
Algebra , Calculus , Equation Solving , Geometry , Group Theory , ...
4
REPLIES
13K
VIEWS

Recursive symbolic Eqn.

QUESTION FROM: Alessandro Cavallero | 12 years ago BY: Alessandro Cavallero
Equation Solving , Mathematica , Wolfram Language
4
REPLIES
2.2K
VIEWS

Finding x-intercepts of epicycloid

QUESTION FROM: Bryan Lettner | 12 years ago BY: David Keith
Equation Solving , Geometry , Mathematica , Mathematics
4
REPLIES
6.8K
VIEWS

how define a system of equations

QUESTION FROM: lespaullpj | 12 years ago BY: lespaullpj
Equation Solving , Mathematica
4
REPLIES
4.7K
VIEWS

Substituting values into a DSolve solution of ODE

QUESTION FROM: Rashmil D | 12 years ago BY: Rashmil D
Equation Solving , Wolfram Language
4
REPLIES
11.8K
VIEWS

Issue of DSolve function and 0 ^ 0

QUESTION FROM: Konstantin Nosov | 12 years ago BY: Michael Rogers
Equation Solving , Mathematica
4
REPLIES
6.3K
VIEWS

Finding a function for the skiing angle from acceleration

QUESTION FROM: Seokin Yeh | 13 years ago BY: Vitaliy Kaurov
Calculus , Equation Solving , Mathematica , Mathematics , Physics , ...
4
REPLIES
14.5K
VIEWS

About ComplexExpand and NSolve

QUESTION FROM: Sergi Gonzalez-Solis | 13 years ago BY: Sergi Gonzalez-Solis
Equation Solving , Mathematica
4
REPLIES
5.1K
VIEWS

Solve for x in -sin(x)8cos(x)=0?

QUESTION FROM: Andrue Stafford | 13 years ago BY: Frank Kampas
Calculus , Equation Solving , Mathematica
4
REPLIES
9.4K
VIEWS

Simplification/change of representation of formulas

QUESTION FROM: Ulrich Müller | 13 years ago BY: Todd Rowland
Algebra , Equation Solving , Mathematica , Mathematics
4
REPLIES
6.3K
VIEWS

Changing differential equation during NDSolve evaluation

QUESTION FROM: Pat Mac | 13 years ago BY: Pat Mac
Equation Solving , Mathematica , Mathematics , ...
4
REPLIES
9K
VIEWS

Second derivative from Mathematica is wrong!

QUESTION FROM: Lihua Li | 13 years ago BY: Lihua Li
Equation Solving , Mathematica
4
REPLIES
10.9K
VIEWS

State Space Model for diff equations

QUESTION FROM: Ivan Kiliian | 13 years ago BY: Ivan Kiliian
Control Systems , Engineering , Equation Solving , Wolfram Language
4
REPLIES
9.9K
VIEWS

How to solve a highly nonlinear PDE

QUESTION FROM: Yiyang Zhang | 13 years ago BY: Sean Clarke
Equation Solving , Mathematica , Mathematics , ...
4
REPLIES
6.8K
VIEWS

Solving Cos trigonometric equation

QUESTION FROM: Ahmed Al-Ali | 13 years ago BY: Bill Simpson
Equation Solving , Mathematica , Mathematics
4
REPLIES
8.4K
VIEWS

Algorithms behind Step-by-Step solutions in Wolfram|Alpha ?

QUESTION FROM: shubham agarwal | 13 years ago BY: David Reiss
Calculus , Computational Systems , Computer Science , Education , ...
4
REPLIES
22.6K
VIEWS

Looking for help cleaning up a Mathematica notebook into a reference implementation

QUESTION FROM: Merlin Stampa | 2 months ago BY: Eric Rimbey
Control Systems , Equation Solving , Jobs & More Exchange , ...
3
REPLIES
411
VIEWS

DSolve v.s. copilot for Coulomb damping

QUESTION FROM: Isao Maruyama | 2 months ago BY: Michael Rogers
Algebra , Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
306
VIEWS

How to obtain such a result when solving the system of equations?

QUESTION FROM: Bill Blair | 3 months ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Symbolic Computations
3
REPLIES
574
VIEWS

How to remove the "if" part following the calculation result obtained from Solve?

QUESTION FROM: Wen Dao | 5 months ago BY: Michael Rogers
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
928
VIEWS

What is wrong with WhenEvent ?

QUESTION FROM: Mikhail Khenner | 9 months ago BY: Mikhail Khenner
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
1.6K
VIEWS

Solving a simple system of four equations gives no output

QUESTION FROM: Sasha Mandra | 1 year ago BY: Michael Rogers
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
1.9K
VIEWS

How does Wolfram deals with undefined list in equations?

QUESTION FROM: Ibtisam Ali | 1 year ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
1.4K
VIEWS

Error in solving equations, please correct if you can

QUESTION FROM: Sami Heidari | 1 year ago BY: Hans Milton
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
2.3K
VIEWS

Application "Math Helper" for programmers, based on the Wolfram Alpha API

CONTRIBUTED BY: Livio Cicala | 2 years ago BY: Livio Cicala
Computer Science , Equation Solving , External Programs and Systems , ...
3
REPLIES
10.5K
VIEWS

How can get two solution of the ODE with degree two ?

QUESTION FROM: Salim Mahmood | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Physics , ...
3
REPLIES
1.6K
VIEWS

Circular reference in differential equations

QUESTION FROM: Mishal Mohanlal | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
2.4K
VIEWS

NSolve won't execute

QUESTION FROM: Leon Fairbanks | 2 years ago BY: Leon Fairbanks
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
2.4K
VIEWS

[Solved] Trying to solve polynomial system

QUESTION FROM: Ali Hammoud | 2 years ago BY: Ali Hammoud
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
2.6K
VIEWS

Finding Upper Bounds on Complex Function Extrema

QUESTION FROM: Patrick DS. | 2 years ago BY: Gianluca Gorni
Equation Solving , Mathematics , Symbolic Computations
3
REPLIES
1.8K
VIEWS

NDSolve debugging and help

QUESTION FROM: Ee Kin Chan | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
1.6K
VIEWS

New trigonometric proof of Pythagorean theorem via law of sines

CONTRIBUTED BY: Shenghui Yang | 2 years ago BY: Ajay Kumar K S
Staff Picks , Calculus , Computer-Based Maths , Equation Solving , ...
3
REPLIES
18.5K
VIEWS

Extracting values from NDSolve

QUESTION FROM: Mishal Mohanlal | 2 years ago BY: Sangdon Lee
Algebra , Equation Solving , External Programs and Systems , ...
3
REPLIES
3.3K
VIEWS

NDSolve documentation example doesn't work on 14.1

QUESTION FROM: Pierre Dehez | 2 years ago BY: Pierre Dehez
Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
2.2K
VIEWS

How do I tune my NDSolve code to start fast, so it can be run hundreds of times?

QUESTION FROM: Kaden Tro | 2 years ago BY: Gareth Russell
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
3K
VIEWS

How to find any solution to a single differential equation with two dependent variables?

QUESTION FROM: Richard Jensen | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
1.9K
VIEWS

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

QUESTION FROM: J Prakash | 2 years ago BY: Mariusz Iwaniuk
Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
2.3K
VIEWS

Error generating graph based on Reduce function result

QUESTION FROM: Tchun Jeeyoung | 2 years ago BY: Tchun Jeeyoung
Algebra , Equation Solving , Graphics and Visualization , ...
3
REPLIES
2K
VIEWS

DSolve ignoring linear solutions

QUESTION FROM: Martin Castillo | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
2.5K
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

Unexpected result from DSolve?

QUESTION FROM: Mert Caliskan | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
2.1K
VIEWS

Paths to maxima

CONTRIBUTED BY: Michael Rogers | 3 years ago BY: Michael Rogers
Staff Picks , Calculus , Dynamic Interactivity , Education , ...
3
REPLIES
6.7K
VIEWS

Unexpected output from Reduce?

QUESTION FROM: Cody Luo | 3 years ago BY: Henrik Schachner
Equation Solving , Logic and Boolean Algebra , Mathematics , ...
3
REPLIES
3.3K
VIEWS

ParametricNDSolve error: Dependent variables cannot depend on parameters

QUESTION FROM: Carles Lopez | 3 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
3.6K
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

Phase Transitions in the Quantum Transverse Field Ising Chain

CONTRIBUTED BY: Aditya Dhumuntarao | 3 years ago BY: Michael Burns
Staff Picks , Equation Solving , Graphics and Visualization , ...
3
REPLIES
10K
VIEWS

Graphing a calculus problem involving limits on Mathematica

QUESTION FROM: Andrew Nassar | 3 years ago BY: Andrew Nassar
Calculus , Dynamic Interactivity , Equation Solving , ...
3
REPLIES
2.8K
VIEWS

A computational approach to the Marxian circuit of capital model

CONTRIBUTED BY: Hee-Young Shin | 3 years ago BY: Robert Tu
Staff Picks , Calculus , Dynamic Interactivity , Economics , ...
3
REPLIES
7.6K
VIEWS

Desargues' Theorem notebook debugging

QUESTION FROM: Caterina Consani | 3 years ago BY: Caterina Consani
Equation Solving , Geometry , Graphics and Visualization , ...
3
REPLIES
2.6K
VIEWS

Unveiling population dynamics: from simple aquarium scenarios to complex differential equation model

CONTRIBUTED BY: Athanasios Paraskevopoulos | 3 years ago BY: Athanasios Paraskevopoulos
Staff Picks , Biological Sciences , Calculus , Education , ...
3
REPLIES
5.7K
VIEWS

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

QUESTION FROM: Fredom W. | 3 years ago BY: Otto Linsuain
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
3.9K
VIEWS

Full plot of the general solution of an equation

QUESTION FROM: Dia Ghosh | 3 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Graphics and Visualization , ...
3
REPLIES
3.3K
VIEWS

Problem with list not being same shape and Integrate function

QUESTION FROM: Anand Mathew | 3 years ago BY: Anand Mathew
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
3K
VIEWS

Using a rule as an input to a function?

QUESTION FROM: Nir Livne | 3 years ago BY: Nir Livne
Algebra , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
3.1K
VIEWS

Least squares fitting of a quadratic function through the origin

CONTRIBUTED BY: Athanasios Paraskevopoulos | 3 years ago BY: Athanasios Paraskevopoulos
Calculus , Education , Equation Solving , Optimization , ...
3
REPLIES
4.1K
VIEWS

How do I define and use variables within WhenEvent in NDSolve

QUESTION FROM: Kaden Tro | 3 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Numerical Computation
3
REPLIES
4.3K
VIEWS

Weierstrass Periods after Fricke-Klein

CONTRIBUTED BY: Brad Klee | 3 years ago BY: Brad Klee
Staff Picks , Algebra , Calculus , Computer-Based Maths , ...
3
REPLIES
5.3K
VIEWS

[Solved] Combine dynamic scaling and rotation transforms

QUESTION FROM: Jan Potocki | 3 years ago BY: Jan Potocki
Dynamic Interactivity , Equation Solving , Geometry , ...
3
REPLIES
4.9K
VIEWS

Terminating Solve[] operation when the first solution is found

QUESTION FROM: Andrea Frasca | 3 years ago BY: Andrea Frasca
Algebra , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
3.4K
VIEWS

Unexpected result from Reduce[ ] of an inequality?

QUESTION FROM: James James | 3 years ago BY: Gianluca Gorni
Algebra , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
3K
VIEWS

1D HeatTransfer problem reformulation

QUESTION FROM: Uwe Schlink | 3 years ago BY: Uwe Schlink
Calculus , Dynamic Interactivity , Equation Solving , ...
3
REPLIES
4.3K
VIEWS

A 1D study of adaptive mesh refinement in neural networks for PDE solving

CONTRIBUTED BY: Gianni Tallarita | 3 years ago BY: Gianni Tallarita
Staff Picks , Artificial Intelligence , Calculus , Data Science , ...
3
REPLIES
6.4K
VIEWS

What is the correct way to create an animation in parallel using NDSolve?

QUESTION FROM: Jonathan Aumann | 3 years ago BY: Jonathan Aumann
Calculus , Equation Solving , Graphics and Visualization , ...
3
REPLIES
4.7K
VIEWS

Isolating coefficients from a long exponential function

QUESTION FROM: Ser Man | 3 years ago BY: Ser Man
Algebra , Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
4.2K
VIEWS

Calculating the parameter value when the first derivative is 0

QUESTION FROM: James James | 3 years ago BY: Rohit Namjoshi
Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
3.4K
VIEWS

System cannot be solved by Solve?

QUESTION FROM: Joerg Kalbfuss | 3 years ago BY: Mariusz Iwaniuk
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
2.7K
VIEWS
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