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Help using WhenEvent with NDSolve to avoid complex solutions

QUESTION FROM: Anonymous User | 10 years ago BY: Anonymous User
Equation Solving , Mathematics , Physics , Wolfram Language
4
REPLIES
5.7K
VIEWS

Create interactive graph to visualize math theorems?

QUESTION FROM: Franco Lorenzo | 10 years ago BY: Franco Lorenzo
Dynamic Interactivity , Graphics and Visualization , ...
4
REPLIES
7.1K
VIEWS

NDSolve Problem for Solving Nonlinear Sytem of 3 Ball Chain "Hertz Model"

QUESTION FROM: Anonymous User | 10 years ago BY: Anonymous User
Equation Solving , Mathematics , Mechanical Engineering , ...
4
REPLIES
9.8K
VIEWS

Can volume integrals give different results in different coordinate systems

QUESTION FROM: Luther Nayhm | 10 years ago BY: Luther Nayhm
Calculus , Mathematics , Wolfram Language
4
REPLIES
7.2K
VIEWS

How to print out numerical values instead of fractions or equations?

QUESTION FROM: Lloyd Harris | 10 years ago BY: Lloyd Harris
Mathematics , Wolfram Language
4
REPLIES
5K
VIEWS

I want a specific time to run an statement

QUESTION FROM: Ernesto Espinosa | 11 years ago BY: Ernesto Espinosa
Mathematics , Wolfram Language
4
REPLIES
5.4K
VIEWS

Problem with BSplineCurve 3D

QUESTION FROM: Mikel Manzanal | 11 years ago BY: Marco Thiel
Mathematics , Wolfram Language
4
REPLIES
3K
VIEWS

Solve for parameters of a Kumaraswamy Distribution

QUESTION FROM: Bruce Colletti | 11 years ago BY: Frank Kampas
Equation Solving , Mathematica , Mathematics , ...
4
REPLIES
9.2K
VIEWS

Mathlm licence daemon not backwardly compatible

QUESTION FROM: Steve Downing | 11 years ago BY: Steve Downing
Mathematics
4
REPLIES
4K
VIEWS

Solving complex derivatives with Mathematica

QUESTION FROM: Iker Aguirrezabal | 11 years ago BY: Nasser M. Abbasi
Equation Solving , Mathematics , Wolfram Language
4
REPLIES
7.8K
VIEWS

How does Mathematica's Table function iterate equations?

QUESTION FROM: Matt Bergman | 11 years ago BY: Jonathan Miller
Mathematica , Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
18.3K
VIEWS

a correlation question

QUESTION FROM: Javad Emami | 11 years ago BY: Jim Baldwin
Mathematics
4
REPLIES
7.7K
VIEWS

Explicit derivatives

QUESTION FROM: Andreas Madsen | 11 years ago BY: Andreas Madsen
Calculus , Mathematics , Wolfram Language
4
REPLIES
6.6K
VIEWS

Mathematica doesn't simplify an expression where n is a positive integer

QUESTION FROM: bilik.miloslav | 11 years ago BY: Daniel Lichtblau
Mathematics , Wolfram Language
4
REPLIES
10.5K
VIEWS

how do I plot this...

QUESTION FROM: Pamela Vilela | 11 years ago BY: Pamela Vilela
Mathematics
4
REPLIES
7.7K
VIEWS

Mathematica 9 Iterative Import

QUESTION FROM: Phillip Rechani | 11 years ago BY: Henrik Schachner
Compilation , Mathematica , Mathematics
4
REPLIES
10.2K
VIEWS

How to input a problem

QUESTION FROM: Manu Ang | 11 years ago BY: Manu Ang
Mathematics , Wolfram|Alpha
4
REPLIES
11.4K
VIEWS

Can this equation system be solved?

QUESTION FROM: Fred Alstair | 11 years ago BY: Fred Alstair
Algebra , Mathematica , Mathematics
4
REPLIES
6.9K
VIEWS

Rotate function x^2

QUESTION FROM: Peter Parker | 11 years ago BY: Peter Parker
Graphics and Visualization , Mathematics , Wolfram Language
4
REPLIES
8.6K
VIEWS

Issue in the Simplify[ ] function

QUESTION FROM: Ahmed Younes | 11 years ago BY: Sander Huisman
Algebra , Equation Solving , Mathematics , Symbolic Computations , ...
4
REPLIES
9K
VIEWS

Trig simplification

QUESTION FROM: Albert Rich | 11 years ago BY: Sander Huisman
Algebra , Calculus , Mathematics
4
REPLIES
8K
VIEWS

How to draw a geometrical interpretation of Im(z^4)

QUESTION FROM: michael terry | 11 years ago BY: michael terry
Mathematics
4
REPLIES
3.8K
VIEWS

How do I return to expression after hitting "ctrl, 6" for exponentiation?

QUESTION FROM: Carl Adkins | 11 years ago BY: Carl Adkins
Mathematics
4
REPLIES
4.2K
VIEWS

"SafeCracker" puzzle - a coffee table challenge

QUESTION FROM: Helen Shiells | 11 years ago BY: Vitaliy Kaurov
Challenges , Data Science , Image Processing , Mathematics , ...
4
REPLIES
25.6K
VIEWS

Convert funktion to variable

QUESTION FROM: Stefan K. | 11 years ago BY: Stefan K.
Algebra , Mathematics , Wolfram|Alpha
4
REPLIES
11.5K
VIEWS

Visual problem when plotting several figures

QUESTION FROM: Alex Smilgins | 11 years ago BY: Alex Smilgins
Computer Science , Economics , Finance , Mathematics , ...
4
REPLIES
12.9K
VIEWS

What is wrong with my Mathematica code, why is it so slow?

QUESTION FROM: Joe Gilray | 11 years ago BY: Joe Gilray
Computer Science , Education , Mathematica , Mathematics , ...
4
REPLIES
13.9K
VIEWS

Adding integers between 1 and n!

QUESTION FROM: Bruce Colletti | 11 years ago BY: Bruce Colletti
Compilation , Mathematica , Mathematics
4
REPLIES
10.8K
VIEWS

Plot a physical expression.

QUESTION FROM: YOUNG HI | 11 years ago BY: YOUNG HI
Mathematica , Mathematics
4
REPLIES
6.5K
VIEWS

Ask a question about function calculation in Mathematica, thanks :)

QUESTION FROM: Di Chang | 11 years ago BY: Di Chang
Mathematics , Physics , Wolfram Language
4
REPLIES
6K
VIEWS

Wave function of a free particle

QUESTION FROM: Devin Luu | 11 years ago BY: Gianluca Gorni
Mathematica , Mathematics , Physics
4
REPLIES
6.1K
VIEWS

Summations in Mathematica

QUESTION FROM: C McKinley | 11 years ago BY: Hans Dolhaine
Mathematics , Wolfram Language
4
REPLIES
9.9K
VIEWS

Separation of Variables Question

QUESTION FROM: Allen He | 11 years ago BY: Allen He
Mathematics
4
REPLIES
3.6K
VIEWS

Is there a way to give Solve "hints" ...

QUESTION FROM: Mark Tuttle | 11 years ago BY: Mark Tuttle
Algebra , Computer Science , Data Science , Discrete Mathematics , ...
4
REPLIES
14.1K
VIEWS

Exporting 3D plots, with low size

QUESTION FROM: abhishek sharma | 11 years ago BY: Alexey Popkov
Graphics and Visualization , Import and Export , Mathematica , ...
4
REPLIES
11.9K
VIEWS

How to multiple a list?

QUESTION FROM: Luke Schutzenhofer | 11 years ago BY: David Keith
Aerospace Engineering , Chemical Engineering , Civil Engineering , ...
4
REPLIES
18.4K
VIEWS

Which value to choose from the solutions of transcendental equation?

QUESTION FROM: Arindum Mukherjee | 11 years ago BY: David Keith
Equation Solving , Mathematics
4
REPLIES
5.7K
VIEWS

Derangements and System` Prefix

QUESTION FROM: Bruce Colletti | 11 years ago BY: Bruce Colletti
Group Theory , Mathematica , Mathematics
4
REPLIES
9.8K
VIEWS

What's wrong with my code? Code and error are in the message.

QUESTION FROM: Nathan Lundholm | 11 years ago BY: Nathan Lundholm
Aerospace Engineering , Astronomy , Discrete Mathematics , ...
4
REPLIES
14.7K
VIEWS

Need serious help with lists!

QUESTION FROM: Nathan Lundholm | 11 years ago BY: Gianluca Gorni
Aerospace Engineering , Astronomy , Computer Science , ...
4
REPLIES
12.5K
VIEWS

Newbie learning the language

QUESTION FROM: Ren Sena | 11 years ago BY: Ren Sena
Equation Solving , Mathematics , Wolfram|Alpha
4
REPLIES
11.8K
VIEWS

Dirac Delta function - as a solution to Modified Helmholtz equation

QUESTION FROM: Sai Guruprasad Jakkala | 11 years ago BY: S M Blinder
Calculus , Education , Engineering , Equation Solving , Mathematica , ...
4
REPLIES
13.9K
VIEWS

Problem with ImplicitRegion in three dimensions

QUESTION FROM: Robert Zimmermann | 11 years ago BY: Simon Cadrin
Mathematics , Physics
4
REPLIES
4.8K
VIEWS

I need help with a differential equation

QUESTION FROM: Ferenc Beleznay | 11 years ago BY: Gianluca Gorni
Calculus , Equation Solving , Mathematica , Mathematics , ...
4
REPLIES
7.9K
VIEWS

A problem with NDSolve

QUESTION FROM: Hui Sun | 11 years ago BY: Hui Sun
Aerospace Engineering , Mathematics , Mechanical Engineering
4
REPLIES
11.7K
VIEWS

Compute the product between two sets

QUESTION FROM: Frédéric DIDIER | 11 years ago BY: Frédéric DIDIER
Computer Science , Discrete Mathematics , Mathematica , Mathematics , ...
4
REPLIES
9.2K
VIEWS

LogPlot. Without Log, there is no problem. But when I try to plot with Log

QUESTION FROM: jabir Hakami | 11 years ago BY: Erik Mahieu
Computational Systems , Computer Science , Mathematics , Optics , ...
4
REPLIES
12.2K
VIEWS

How to code function whose value depends on conditions?

QUESTION FROM: Ricardo Garcia | 11 years ago BY: Ricardo Garcia
Discrete Mathematics , Mathematica , Mathematics
4
REPLIES
7.6K
VIEWS

Using Phasors in Mathematica (adding Cos[])

QUESTION FROM: Mitchell Sandlin | 11 years ago BY: Hans Milton
Engineering , Mathematica , Mathematics , Wolfram Language
4
REPLIES
15.6K
VIEWS

Why the multiplication between two matrix is wrong?

QUESTION FROM: Juan Gomez | 11 years ago BY: Kay Herbert
Calculus , Mathematica , Mathematics
4
REPLIES
9.8K
VIEWS

How can I calculate row space of a matrix in a finite field?

QUESTION FROM: murat guzeltepe | 11 years ago BY: murat guzeltepe
Mathematics , Wolfram Language
4
REPLIES
6.6K
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

How to show/plot 3D spheres randomly?

QUESTION FROM: Ravi-Praveenkumar Padnaram | 11 years ago BY: Marco Thiel
Mathematica , Mathematics
4
REPLIES
9.1K
VIEWS

Function does not work with Import data from Excel

QUESTION FROM: Chiel Geeraert | 11 years ago BY: Chiel Geeraert
Mathematics
4
REPLIES
6.6K
VIEWS

Questions about expressions of trigonometry

QUESTION FROM: Pietro Rampini | 11 years ago BY: David Gathercole
Algebra , Mathematics , Wolfram|Alpha
4
REPLIES
12.1K
VIEWS

Solution of a general linear system of equations: 4-term n-equations

QUESTION FROM: Srinivasan Anand | 11 years ago BY: Marco Thiel
Algebra , Mathematics , Wolfram Language
4
REPLIES
5.1K
VIEWS

Factoring Cubic Equation With no Calculator?

QUESTION FROM: Hoang-Nam Chu | 11 years ago BY: kis miska
Algebra , Mathematics
4
REPLIES
8.9K
VIEWS

How to find and plot the volume of cross sections?

QUESTION FROM: Matt Jin | 11 years ago BY: S M Blinder
Engineering , Mathematics
4
REPLIES
7.4K
VIEWS

<<>> notation

QUESTION FROM: Jonah Wimer | 11 years ago BY: Jonah Wimer
Mathematics , Physics
4
REPLIES
4.6K
VIEWS

Someone could tell me please do that I'm doing wrong?

QUESTION FROM: Luis Ledesma | 11 years ago BY: Simon Cadrin
Education , Mathematics , Recreation , Wolfram Language
4
REPLIES
10K
VIEWS

I am new to Mathematica. Trying to solve a partial differential equation.

QUESTION FROM: Nirmalya Datta | 11 years ago BY: Nirmalya Datta
Education , Mathematics , Mechanical Engineering , ...
4
REPLIES
10.9K
VIEWS

Fourier Transform operation does not agree with Wolfram Mathworld page

QUESTION FROM: James Richardson | 11 years ago BY: James Richardson
Algebra , Calculus , Mathematics , Wolfram Language
4
REPLIES
4.2K
VIEWS

Typing and finding a limit of sum

QUESTION FROM: Kadir Sertcanli | 11 years ago BY: EDITORIAL BOARD
Calculus , Mathematics , Wolfram Language
4
REPLIES
6.4K
VIEWS

Reduce the complexity of a code

QUESTION FROM: Fabio Rondelli | 11 years ago BY: Fabio Rondelli
Mathematics , Tuning and Debugging , Wolfram Language
4
REPLIES
9.7K
VIEWS

Plot command help

QUESTION FROM: ash ash | 11 years ago BY: Frank Kampas
Civil Engineering , Computer Science , Data Science , Education , ...
4
REPLIES
13.2K
VIEWS

Phenomenon in finding "simplest" algebraic numbers

QUESTION FROM: Marvin Ray Burns A.G.S. (cum laude) | 11 years ago BY: Udo Krause
Mathematics , Wolfram Language
4
REPLIES
7.4K
VIEWS

Plot Many Points with ListPointPlot3D[]

QUESTION FROM: Greg | 11 years ago BY: Greg
Graphics and Visualization , Mathematica , Mathematics , ...
4
REPLIES
9K
VIEWS

Learning Mathematica

QUESTION FROM: Joe Krishnapillai | 11 years ago BY: Todd Rowland
Mathematica , Mathematics , Wolfram Language
4
REPLIES
14.1K
VIEWS

Help with ManhattanDistance function

QUESTION FROM: Luis Ledesma | 11 years ago BY: Luis Ledesma
Mathematics , Recreation , Wolfram Language
4
REPLIES
8K
VIEWS

Raspberry Pi resources and ideas for children in age range 9 yrs to 14 yrs?

QUESTION FROM: Stuart Bruff | 11 years ago BY: Kyle Keane
Education , Mathematics , Raspberry Pi , Recreation , Wolfram Language
4
REPLIES
30.5K
VIEWS

Regression and predictive analysis

QUESTION FROM: Blessing Okeke | 12 years ago BY: Blessing Okeke
Business Analytics , Data Science , Finance , Mathematica , ...
4
REPLIES
15.1K
VIEWS

Prove this limit

QUESTION FROM: Marvin Ray Burns A.G.S. (cum laude) | 12 years ago BY: Udo Krause
Mathematics , Wolfram Language
4
REPLIES
7.5K
VIEWS

array containing random complex numbers

QUESTION FROM: Luis Ledesma | 12 years ago BY: Luis Ledesma
Computer Science , Education , Engineering , Game Development , ...
4
REPLIES
14.1K
VIEWS

Problem with Plot function

QUESTION FROM: Bob Freeman | 12 years ago BY: Gianluca Gorni
Graphics and Visualization , Mathematica , Mathematics
4
REPLIES
12.9K
VIEWS

Limit of a sum in Wolfram|Alpha

QUESTION FROM: Wim Lamotte | 12 years ago BY: Bruce Miller
Calculus , Mathematics , Wolfram|Alpha
4
REPLIES
16.6K
VIEWS

about definite question and releasing Hold

QUESTION FROM: kevin kevin | 12 years ago BY: kevin kevin
Control Systems , Mathematics , Wolfram|Alpha Integration , ...
4
REPLIES
7.3K
VIEWS

How to use do, for, while loops?

QUESTION FROM: Alice Bishop | 12 years ago BY: David Reiss
Mathematica , Mathematics , Wolfram Language
4
REPLIES
25.8K
VIEWS

Piecewise function

QUESTION FROM: Philip Majnooni | 12 years ago BY: David Keith
Aerospace Engineering , Civil Engineering , Control Systems , ...
4
REPLIES
15.6K
VIEWS

Solving y'=y, y(0)=1

QUESTION FROM: David Arnold | 12 years ago BY: David Arnold
Mathematica , Mathematics , Wolfram Language
4
REPLIES
5.8K
VIEWS

solving systems of equations with given initial conditions

QUESTION FROM: dylan keefe | 12 years ago BY: Bill Simpson
Chemistry , Engineering , Mathematics
4
REPLIES
8K
VIEWS

Analysis with more variables

QUESTION FROM: Iris Fox | 12 years ago BY: Jim Baldwin
Mathematica , Mathematics
4
REPLIES
3.8K
VIEWS

How can I create dynamical matrices?

QUESTION FROM: Paolo Di Marco | 12 years ago BY: Daniel Lichtblau
Economics , Mathematica , Mathematics
4
REPLIES
6.4K
VIEWS

Solving two second order ordinary differential equations

QUESTION FROM: anon nanon | 12 years ago BY: Kay Herbert
Mathematics , Physics
4
REPLIES
5.1K
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 can I gather the results of several computations of a notebook?

QUESTION FROM: Vladimir Korukov | 12 years ago BY: Vladimir Korukov
Mathematica , Mathematics , Numerical Computation , Wolfram Language
4
REPLIES
4.3K
VIEWS

How do I make a Symbol Positive?

QUESTION FROM: bob Korsan | 12 years ago BY: bob Korsan
Mathematica , Mathematics , Wolfram Language
4
REPLIES
7.6K
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

Gauss iteration method-nestlist-stopping criteria

QUESTION FROM: selahittin cinar | 12 years ago BY: Daniel Lichtblau
Mathematica , Mathematics , Numerical Computation
4
REPLIES
5.2K
VIEWS

Do I need additional packages for this Tutorial?

QUESTION FROM: David Klein | 12 years ago BY: David Klein
Material Sciences , Mathematics , Mechanical Engineering , Physics
4
REPLIES
7.3K
VIEWS

how to connect DLATRAM in System Modeler?

QUESTION FROM: manu gaurav | 12 years ago BY: manu gaurav
Engineering , Mathematics , Modeling , Signal Processing , ...
4
REPLIES
12K
VIEWS

Integration along BSpline

QUESTION FROM: Christopher Purcell | 12 years ago BY: Christopher Purcell
Calculus , Mathematica , Mathematics , Numerical Computation
4
REPLIES
7.2K
VIEWS

problems with ReplaceAll

QUESTION FROM: Mark Turtsinskyi | 12 years ago BY: David Reiss
Mathematics
4
REPLIES
6.1K
VIEWS

atan(y,x) scilab vs. ArcTan[x,y] mathematica

QUESTION FROM: afreeka b | 12 years ago BY: afreeka b
Mathematics
4
REPLIES
15.9K
VIEWS

How do I teach Mathematica that a object is a vector or a matrix?

QUESTION FROM: Anthony DeGance | 12 years ago BY: David G
Business Analytics , Computer Science , Mathematics
4
REPLIES
14.9K
VIEWS

Dirichlet Distribution (in Wolfram Alpha)

QUESTION FROM: Soer Klett | 12 years ago BY: Bruce Miller
Mathematics , Wolfram|Alpha
4
REPLIES
10.5K
VIEWS

Why do i get different outputs for equivalent commands?

QUESTION FROM: Matteo Di Loreto | 12 years ago BY: Matteo Di Loreto
Control Systems , Data Science , Engineering , Mathematics , ...
4
REPLIES
6.4K
VIEWS

Splines, Implementation in Mathematica 10, Help?

QUESTION FROM: Muzahoo jee | 12 years ago BY: Muzahoo jee
Mathematica , Optimization , Mathematics , Wolfram Language
4
REPLIES
5.7K
VIEWS

How would I type the questions into Mathematica.

QUESTION FROM: Justin Ivers | 12 years ago BY: Justin Ivers
Graphics and Visualization , Mathematica , Mathematics , ...
4
REPLIES
7.9K
VIEWS

Integral not evaluating

QUESTION FROM: Caleb Spires | 12 years ago BY: Daniel Lichtblau
Chemical Engineering , Chemistry , Computer Science , Mathematics , ...
4
REPLIES
10.3K
VIEWS

Convert USD$XYZ/gallon into CAD/L, or vice versa

QUESTION FROM: Red Ryder | 12 years ago BY: Red Ryder
Mathematics , Units , Wolfram|Alpha
4
REPLIES
9.9K
VIEWS
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