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Last seen: 1 jour il y a | Actif depuis 2017

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Deciding when to call a Matlab function: Within my symbolic math code, or within my converted numerical code?
Hi there! I wrote a symbolic math code and used the algebraic solver solve( ) to get the equations that I want. I then converte...

6 jours il y a | 1 réponse | 0

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Writing ODE equations for ode45 to solve;
Hi there! I have a basic question to ask here, regarding writing the first-order equations for ode45 to solve. Let's say I am ...

25 jours il y a | 1 réponse | 0

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Question

ode45 integration issues for some choices of physical parameters,
Hi there! I have a simple, two-dimensional, ode model that solves for the trajectory of a flat plate falling through a fluid fl...

environ un mois il y a | 2 réponses | 0

2

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Simple question about creating an anonymous function,
Hi there! Using a Matlab function file, I wrote an ode model model(t, z, p), where p stores all of my physical parameters, suc...

environ un mois il y a | 2 réponses | 0

2

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How to animate background flow field that an object is moving through?
Hi there! I now have a decent code that solves an ode model of mine, using ode45. It is about a rigid plate falling freely thro...

environ un mois il y a | 1 réponse | 0

1

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Question

How can I run code just once, for multiple intervals of numbers?
Let's say I want to calculate things for alpha ranging from 0 to 2pi. I've written if / else-if statements to do this: alpha ...

environ 2 mois il y a | 1 réponse | 0

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Question

How to loop through values?
Let’s say I have 11 values of beta, evenly-spaced with linspace( ). And let’s say for each value of beta, I want to compute some...

environ 2 mois il y a | 1 réponse | 0

1

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Question

Only the first if-statement block executes,
Hi there! I wrote an if-statement, followed by an if-else statement, followed by another if-else statement, followed by the end...

environ 2 mois il y a | 1 réponse | 0

1

réponse

Question

Using an anonymous function handle as input into another function handle
Hi there! I have a question that's mostly about syntax: Let's say I write the anonymous function handle (for a program to give ...

environ un an il y a | 3 réponses | 0

3

réponses

Question

Writing a system of ODEs for ode45
Hi, I wrote a .m-file that has three second-order differential equations, broken down into six first-order equations. When I r...

environ un an il y a | 1 réponse | 0

1

réponse

Question

How to put fsolve in a loop, using 2 unknowns?
Hi, I want to write a code that asks fsolve to go through some combinations of guesses and then find all the roots (xdot, yd...

plus de 3 ans il y a | 1 réponse | 0

1

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Question

Filled figures, saved as eps or pdf, now have weird lines when zoomed in, while png files do not,
Hi, My filled figures, e.g. ellipses, using either the fill() or patch functions, and saved as eps or pdf files, now have weir...

plus de 3 ans il y a | 1 réponse | 0