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Partial and total derivatives, integrals in one or more dimensions, series and limits, differential equations, integral transforms, numerical calculus, discrete calculus...

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Problem with NDSolve

QUESTION FROM: Luis Fernando Moura | 11 years ago BY: Luis Fernando Moura
Calculus , Equation Solving , Mathematica , Wolfram Language
5
REPLIES
4.5K
VIEWS

Mathematica only rewrites the differential equation

QUESTION FROM: Mattias Pettersson | 11 years ago BY: Marco Thiel
Calculus , Equation Solving , Physics , Wolfram Language
3
REPLIES
5.4K
VIEWS

NIntegrate returned complex value for non-complex integrand

QUESTION FROM: Denis Petukhov | 11 years ago BY: Sean Clarke
Calculus , Mathematica , Numerical Computation , Wolfram Language
4
REPLIES
6.2K
VIEWS

Am I doing wrong with the boundary conditions in NDSolveValue?

QUESTION FROM: Wen Yan | 11 years ago BY: Marco Thiel
Calculus , Mathematica , Numerical Computation , ...
1
REPLIES
8K
VIEWS

Perturb parameters during NDSolve run?

QUESTION FROM: Leila Lindsey | 11 years ago BY: Daniel Lichtblau
Calculus , Mathematica , Wolfram Language
3
REPLIES
2.8K
VIEWS

Visualize a 2006 IMO problem

CONTRIBUTED BY: Shenghui Yang | 11 years ago
Algebra , Calculus , Education , Mathematica , Mathematics , ...
0
REPLIES
4.8K
VIEWS

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

QUESTION FROM: Wayne Roest | 11 years ago BY: Bill Simpson
Algebra , Calculus , Equation Solving , Mathematica , Optimization , ...
4
REPLIES
6.2K
VIEWS

NDSolve syntax problem

QUESTION FROM: Tomas Nettl | 11 years ago BY: Tomas Nettl
Calculus , Equation Solving , Wolfram Language
2
REPLIES
3K
VIEWS

Why can't Mathematica solve this integral in definite form?

QUESTION FROM: M. R. | 11 years ago BY: Daniel Lichtblau
Calculus , Mathematica , Wolfram Language
3
REPLIES
13.3K
VIEWS

having trouble using NDsolve function

QUESTION FROM: chriskwangtun | 11 years ago BY: chriskwangtun
Calculus , Wolfram Language
2
REPLIES
5.3K
VIEWS

Monte Carlo Multiple Integration

CONTRIBUTED BY: college student | 11 years ago BY: Anton Antonov
Calculus , Mathematics , Wolfram Language
3
REPLIES
7.6K
VIEWS

Problem with NDSolve

QUESTION FROM: Josh Wofford | 11 years ago BY: Josh Wofford
Calculus , Mathematica , Wolfram Language
3
REPLIES
3K
VIEWS

how to write this formula in wolfram alpha

QUESTION FROM: idkfa idkfa | 11 years ago BY: idkfa idkfa
Calculus , Mathematics , Wolfram|Alpha
2
REPLIES
2.8K
VIEWS

Finding area of a region with Mathematica

QUESTION FROM: Jessica Blanton | 12 years ago BY: Paul Cleary
Calculus , Mathematica
3
REPLIES
24.6K
VIEWS

All possible tangent lines to a curve through given point

QUESTION FROM: Thorsten Gildhoff | 12 years ago BY: Paul Cleary
Calculus , Mathematics , Wolfram|Alpha
3
REPLIES
8.7K
VIEWS

Volume of spherical cap

QUESTION FROM: beatriz hernandez | 12 years ago BY: EDITORIAL BOARD
Calculus , Mathematica , Mathematics
7
REPLIES
10.3K
VIEWS

Using Reduce inside Minimize

CONTRIBUTED BY: Frank Kampas | 12 years ago BY: EDITORIAL BOARD
Calculus , Mathematica , Optimization
4
REPLIES
5.9K
VIEWS

Heat Transfer Problem

QUESTION FROM: Jon T | 12 years ago BY: Jon T
Calculus , Engineering , Equation Solving , Mathematica , ...
10
REPLIES
25.8K
VIEWS

NdSolve::ndnum error and Polar Coordinates plot

QUESTION FROM: Danila Zharenkov | 12 years ago BY: Danila Zharenkov
Calculus , Equation Solving , Mathematica , Mathematics
6
REPLIES
6.1K
VIEWS

Numerical fitting to model that has Integral with no analytical solution

QUESTION FROM: Nick D | 12 years ago BY: Nick D
Calculus , Data Science , Engineering , Material Sciences , ...
3
REPLIES
16.6K
VIEWS

My integral is running slow -- why?

QUESTION FROM: Patrick McMullen | 4 days ago BY: Patrick McMullen
Calculus , Mathematics , Wolfram Language
3
REPLIES
75
VIEWS

Derivating things: construction of the generalized functions and computing their derivatives

CONTRIBUTED BY: Dara Shayda | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Calculus , Control Systems , ...
2
REPLIES
754
VIEWS

Determining whether a line is tangent to a curve

QUESTION FROM: Wen Dao | 2 months ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Wolfram Language
2
REPLIES
1.1K
VIEWS

Variational iterative method for system fractional DE with Katugampola derivative?

QUESTION FROM: SARIKA SAWANT | 3 months ago BY: Mohammad Bahrami
Calculus , Equation Solving , Mathematics , Wolfram Language
1
REPLIES
1.1K
VIEWS

Integral of Sqrt[1-x^2] appears wrong in Wolfram Alpha

QUESTION FROM: M Bennett | 3 months ago BY: M Bennett
Calculus , Mathematics , Wolfram|Alpha , Wolfram Language
2
REPLIES
1.3K
VIEWS

Determining the condition for a rational expression in k to be constant: coefficient ratio analys

QUESTION FROM: Jim Clinton | 4 months ago BY: Jim Clinton
Calculus , Mathematics , Wolfram Language
4
REPLIES
1K
VIEWS

What is wrong with WhenEvent ?

QUESTION FROM: Mikhail Khenner | 4 months ago BY: Mikhail Khenner
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
1.2K
VIEWS

Elliptic integrals: built-in vs. explicit integration

QUESTION FROM: Davide Gardini | 5 months ago BY: Gianluca Gorni
Calculus , Mathematics , Numerical Computation , Wolfram Language
5
REPLIES
874
VIEWS

Multiplying very long mathematical expressions

QUESTION FROM: Nomsa Ledwaba | 6 months ago BY: Nomsa Ledwaba
Calculus , Mathematics , Symbolic Computations , Wolfram Language
2
REPLIES
1.2K
VIEWS

How to solve a couple of ODEs in two variables

QUESTION FROM: Safinaz Salem | 6 months ago BY: Safinaz Salem
Calculus , Equation Solving , Mathematics , Wolfram Language
2
REPLIES
1K
VIEWS

Cannot plot full OutputResponse

QUESTION FROM: Sai Fisher | 6 months ago BY: Mariusz Iwaniuk
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
1
REPLIES
1K
VIEWS

Do you have 1 simple function that will handle the various types of double integration?

QUESTION FROM: Mary A. Marion | 7 months ago BY: Mary A. Marion
Calculus , Mathematics , Wolfram Language
3
REPLIES
1.2K
VIEWS

Substitute x in f[x] by a function. Fail to find out how to do that

QUESTION FROM: Christer Gustafsson | 7 months ago BY: Christer Gustafsson
Calculus , Mathematics , Wolfram Language
3
REPLIES
1.4K
VIEWS

SurfaceIntegrate[] and Integrate[] functions giving different divergent theorem flux answers

QUESTION FROM: Mitchell Sandlin | 7 months ago BY: Bruno Tenorio
Calculus , Mathematics , Wolfram Language
1
REPLIES
1.5K
VIEWS

Struggling with arbitrary precision in a calculation involving very large and very small numbers

QUESTION FROM: Adam Worthington | 8 months ago BY: Michael Rogers
Calculus , Mathematics , Numerical Computation
1
REPLIES
1.1K
VIEWS

Question on functional derivatives

QUESTION FROM: Yep Led | 8 months ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram Language
1
REPLIES
810
VIEWS

Superfluous step in W|A step-by-step of implicit differentiation

QUESTION FROM: Aaron Naiman | 10 months ago BY: Aaron Naiman
Calculus , Mathematics , Wolfram|Alpha
6
REPLIES
1.6K
VIEWS

Additional term of Log[e] in performing partial derivative

QUESTION FROM: Mitchell Sandlin | 10 months ago BY: Mohammad Bahrami
Calculus , Mathematics , Wolfram Language
1
REPLIES
1.8K
VIEWS

Converting from Cartesian into cylindrical coordinates

QUESTION FROM: Mitchell Sandlin | 11 months ago BY: Mitchell Sandlin
Calculus , Geometry , Mathematics , Wolfram Language
2
REPLIES
1.9K
VIEWS

Unable to get my critical points even when I have defined the functions properly?

QUESTION FROM: Antam Gill | 0 months ago BY: Hans Milton
Algebra , Calculus , Equation Solving , Mathematics , Wolfram Language
4
REPLIES
2.1K
VIEWS

Bugs in Integral of Bessel Function?

QUESTION FROM: Qiang Lu | 0 months ago BY: Mariusz Iwaniuk
Calculus , Mathematics , Tuning and Debugging , Wolfram Language
2
REPLIES
1.3K
VIEWS

[WUCB-2024] Conferência de usuários Wolfram 2024 - Brasil

CONTRIBUTED BY: Daniel Carvalho | 1 year ago BY: Daniel Carvalho
Algebra , Calculus , Compilation , Data Science , Events & Media , ...
2
REPLIES
3K
VIEWS

NDSolve debugging and help

QUESTION FROM: Ee Kin Chan | 1 year ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
1.2K
VIEWS

What is the substitution or replacement method for multiple functions and their derivatives?

QUESTION FROM: Nomsa Ledwaba | 1 year ago BY: Michael Rogers
Calculus , Mathematics , Wolfram Language
1
REPLIES
1.9K
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
2.1K
VIEWS

Empty output from ParametricPlot

QUESTION FROM: Malej Est | 1 year ago BY: Malej Est
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
1.5K
VIEWS

Double integration of a complex function

QUESTION FROM: Orpita Saha | 1 year ago BY: Orpita Saha
Calculus , Mathematics , Wolfram Language
4
REPLIES
1.3K
VIEWS

Access DSolve solutions as plotable functions

CONTRIBUTED BY: Paul Warburton | 1 year ago BY: Paul Warburton
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
1.2K
VIEWS

NDSolveValue error: fewer dependent variables

QUESTION FROM: Abid Hussain | 1 year ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
4
REPLIES
1.7K
VIEWS

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

QUESTION FROM: Kaden Tro | 1 year ago BY: Gareth Russell
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
3
REPLIES
2.5K
VIEWS

Can you use modular arithmetics exponencial property ?

QUESTION FROM: Luis Felipe Massena Misiec | 1 year ago BY: Daniel Lichtblau
Calculus , Mathematics , Wolfram Language
1
REPLIES
2K
VIEWS

NDSolveValue::litarg To avoid possible ambiguity, ... dependent variable in DirichletCondition

QUESTION FROM: David Johnson | 1 year ago BY: Michael Rogers
Calculus , Engineering , Equation Solving , ...
4
REPLIES
2.1K
VIEWS

Error 1/0 encountered while plotting solution of differential equations

QUESTION FROM: Vasile Riccardo Duceac | 1 year ago BY: Michael Rogers
Calculus , Mathematics , Numerical Computation , Wolfram Language
3
REPLIES
2.3K
VIEWS

Numerical simulation of the discrete Klein-Gordon equation: study on damped, driven nonlinear waves

CONTRIBUTED BY: Athanasios Paraskevopoulos | 1 year ago BY: EDITORIAL BOARD
Staff Picks , Biological Sciences , Calculus , ...
1
REPLIES
2.9K
VIEWS

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

QUESTION FROM: J Prakash | 1 year ago BY: Mariusz Iwaniuk
Calculus , Equation Solving , Mathematics , Wolfram Language
3
REPLIES
2K
VIEWS

Using implicit Euler and fixed step size for solving

QUESTION FROM: James James | 1 year ago BY: Eric Boone
Calculus , Equation Solving , Mathematics , Numerical Computation , ...
2
REPLIES
3.5K
VIEWS

Using the Disk[] Primitive in Integration

QUESTION FROM: Mitchell Sandlin | 1 year ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram Language
3
REPLIES
3.3K
VIEWS

Simple position, velocity and acceleration notebook with dimensional checking fails?

QUESTION FROM: James Bowery | 1 year ago BY: Gianluca Gorni
Calculus , Physics , Units , Wolfram Language
4
REPLIES
2.8K
VIEWS

Exploring and visualizing solutions of ordinary differential equations

CONTRIBUTED BY: Athanasios Paraskevopoulos | 1 year ago
Calculus , Education , Equation Solving , ...
0
REPLIES
1.8K
VIEWS

Symbolic matrix inverse takes long time

QUESTION FROM: Leo Murphy | 1 year ago BY: Daniel Lichtblau
Calculus , Mathematica , Mathematics , Physics , Wolfram Community , ...
4
REPLIES
3.6K
VIEWS

Complex integral solving

QUESTION FROM: Leo Murphy | 1 year ago BY: Leo Murphy
Calculus , Mathematics , Wolfram Language
4
REPLIES
2.1K
VIEWS

Difficulty understanding methodology

QUESTION FROM: Dennis McLaughlin | 1 year ago BY: Dennis McLaughlin
Calculus , Mathematics , Wolfram Language
3
REPLIES
2.1K
VIEWS

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 , ...
2
REPLIES
2.3K
VIEWS

Unexpected result from DSolve?

QUESTION FROM: Mert Caliskan | 1 year ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
3
REPLIES
1.8K
VIEWS

SurfaceIntegrate with non-Cartesian coordiantes

QUESTION FROM: Frank Kuehnel | 1 year ago
Calculus , Geometry , Mathematics , Wolfram Language
0
REPLIES
1.3K
VIEWS

Volterra integral doesn't work

QUESTION FROM: Jabir Hakami | 1 year ago BY: Gianluca Gorni
Calculus , Mathematics , Numerical Computation , Physics , ...
3
REPLIES
1.6K
VIEWS

Mini-Series: Asymptotic Computation

CONTRIBUTED BY: Keren Garcia | 2 years ago BY: Keren Garcia
Calculus , Education , Events & Media , Mathematica , Mathematics , ...
1
REPLIES
2.9K
VIEWS

How to plot a reciprocal function

CONTRIBUTED BY: Athanasios Paraskevopoulos | 2 years ago
Calculus , Education , Graphics and Visualization , Mathematics , ...
0
REPLIES
1.2K
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 , ...
4
REPLIES
1.9K
VIEWS

What does the function E ( a | b ) mean?

QUESTION FROM: R B | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram|Alpha Integration , Wolfram Language
1
REPLIES
2K
VIEWS

How to perform this integration symbolically?

QUESTION FROM: Leslaw Bieniasz | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Symbolic Computations , Wolfram Language
1
REPLIES
1.8K
VIEWS

Plot with and without `Table` produce different results

QUESTION FROM: Ian P | 2 years ago BY: Updating Name
Algebra , Calculus , Equation Solving , Graphics and Visualization , ...
6
REPLIES
2.7K
VIEWS

NDSolve not producing a smooth solution of an oscillatory function?

QUESTION FROM: John Wick | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
6.1K
VIEWS

Unexpected output from Integrate

QUESTION FROM: Carlo Wood | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram Language
4
REPLIES
2.1K
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 , ...
3
REPLIES
3.1K
VIEWS

Finding the relationship between variables in PDEs?

QUESTION FROM: Zhenyu Zeng | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
1
REPLIES
2.1K
VIEWS

How to efficiently compute the integral of a piecewise demand function?

QUESTION FROM: Sébastien Cerles | 2 years ago BY: Sébastien Cerles
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
2
REPLIES
2.5K
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 , ...
5
REPLIES
2.9K
VIEWS

Graphing a calculus problem involving limits on Mathematica

QUESTION FROM: Andrew Nassar | 2 years ago BY: Andrew Nassar
Calculus , Dynamic Interactivity , Equation Solving , ...
3
REPLIES
2.5K
VIEWS

Unexpected behavior of D[f, {array}, NonConstants -> f]

QUESTION FROM: Yaroslav Drachov | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram Language
1
REPLIES
2K
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
3
REPLIES
2K
VIEWS

Modeling and mitigating the spread of a new respiratory virus

CONTRIBUTED BY: Athanasios Paraskevopoulos | 2 years ago BY: EDITORIAL BOARD
Staff Picks , Biological Sciences , Calculus , Education , ...
1
REPLIES
5.2K
VIEWS

How to find the range of values containing parameter functions?

QUESTION FROM: Lee Tao | 2 years ago BY: Jim Baldwin
Calculus , Mathematics , Wolfram Language
1
REPLIES
3.7K
VIEWS

Finding a track of a climber on a mountain shaped function

QUESTION FROM: Kal Ki | 2 years ago BY: Marco Thiel
Calculus , Data Science , Machine Learning , Mathematics , ...
1
REPLIES
2.6K
VIEWS

Symbolic partial derivative input

QUESTION FROM: Paul Warburton | 2 years ago BY: Paul Warburton
Calculus , Mathematics , Wolfram Language
2
REPLIES
2.2K
VIEWS

Foundations of Mathematics: A Simplified Approach to Core Concepts

CONTRIBUTED BY: Athanasios Paraskevopoulos | 2 years ago BY: Roger Wells
Algebra , Calculus , Education , Graphics and Visualization , ...
1
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
7
REPLIES
3.1K
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 , ...
2
REPLIES
2.8K
VIEWS

[WSS23] Rewriting the Ricci tensor using Vector Calculus

CONTRIBUTED BY: Michael Ostroff | 2 years ago
Algebra , Calculus , Mathematics , Wolfram Language , ...
0
REPLIES
1.9K
VIEWS

Commutators of differential and integral operators

QUESTION FROM: William Lionheart | 2 years ago BY: Gianluca Gorni
Calculus , Mathematics , Wolfram Language
3
REPLIES
3K
VIEWS

Geodesics around a Kerr black hole

CONTRIBUTED BY: Michael Ostroff | 2 years ago
Astronomy , Calculus , Equation Solving , ...
0
REPLIES
2K
VIEWS

How do I define and use variables within WhenEvent in NDSolve

QUESTION FROM: Kaden Tro | 2 years ago BY: Michael Rogers
Calculus , Equation Solving , Mathematics , Numerical Computation
3
REPLIES
3.9K
VIEWS

Never ending analytical integrate computation

QUESTION FROM: guido cimino | 2 years ago BY: Jim Baldwin
Calculus , Mathematics , Wolfram Language
4
REPLIES
3.7K
VIEWS

Computation of Turning Points of a Multi-Valued Function

CONTRIBUTED BY: Housam Binous | 2 years ago BY: Daniel Lichtblau
Calculus , Graphics and Visualization , Mathematics , Wolfram Language
1
REPLIES
2K
VIEWS

Evaluation of solving simultaneous differential equations doesn't end

QUESTION FROM: Anand Mathew | 2 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
4
REPLIES
3.4K
VIEWS

The Wave Equation in Two Dimensions (Cartesian Coordinates)

CONTRIBUTED BY: Athanasios Paraskevopoulos | 2 years ago
Calculus , Equation Solving , Graphics and Visualization , ...
0
REPLIES
1.7K
VIEWS

Different output of a DSolve example?

QUESTION FROM: Sthen Sdfs | 2 years ago BY: Roland Franzius
Calculus , Equation Solving , Mathematics , Symbolic Computations , ...
4
REPLIES
4.9K
VIEWS

Monotonic functions: definition and examples

QUESTION FROM: Athanasios Paraskevopoulos | 2 years ago
Calculus , Education , Graphics and Visualization , Mathematics , ...
0
REPLIES
3.1K
VIEWS

Different results when solving a DE using symbolic and numerical methods

QUESTION FROM: Sinval Santos | 2 years ago BY: Sinval Santos
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
3.5K
VIEWS

Solving a Boundary Value Problem--Sturm-Liouville

QUESTION FROM: Athanasios Paraskevopoulos | 2 years ago BY: Athanasios Paraskevopoulos
Calculus , Equation Solving , Graphics and Visualization , ...
2
REPLIES
2.7K
VIEWS
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