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Felix Lauwaert


Universitat de Girona

2015년부터 활동

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How can I return the values of a loop
You are computing k once for each value of i and overwriting it. If I understand what you want, try: i = 1:5; j = 0:5; k...

8년 초과 전 | 0

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Create an array of n function handle
Hello, How can I create a set of ode equations? Example: fun1 = @(t,x,k) x-k; I want to generate a function of n e...

8년 초과 전 | 답변 수: 1 | 0

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Struggling at 'Events' of ODE45
Hello, I have a ODE and need to compute the "exact" time and values of y at y(2)=0 and I'm using ode45 and 'Events'. When ...

거의 9년 전 | 답변 수: 1 | 0

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Struggling at events of ode function
Hello, I'm trying to use events function to find the coordinates of a ODE function of n variables. What I want is to find the...

대략 9년 전 | 답변 수: 0 | 0

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Can You Explain This Weird Behavior
I'm not an expert, but try to never use known MATLAB functions. To check if a name is already used, go to command whindow and ty...

9년 초과 전 | 1

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How to automatically choose to compute for or parfor loops
Hi, I wonder if there's a way to specify if I want to compute with a normal for or with a parfor. What I don't want is to...

9년 초과 전 | 답변 수: 1 | 3

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How to vectorize this simple for-loop
Hello, I'm trying to vectorize something like this: z=zeros(3); x=[1 2 3]; y=x; for i=1:length(x) %or y, d...

9년 초과 전 | 답변 수: 1 | 0

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How to group data in cells?
Hello, My code works on a data file. By loading the file, I have a 5xn matrix (n is approximately BIG). Each column represent...

9년 초과 전 | 답변 수: 0 | 0

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Problem scattering high amount of data
Hello, I'm trying to scatter more than 80Mb of data in one scatter figure and I see nothing but blue. I'm trying to get small...

9년 초과 전 | 답변 수: 1 | 0

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Which plot do I need?
Hello, I'm trying to plot in 2D some points and I want to color them depending on a logic (1 or 0) classification. I'll ex...

9년 초과 전 | 답변 수: 3 | 0

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How to automatically stop a function execution if it's not running right?
Hi, I have a problem with running my code. I'm numerically solving a Poincaré map of a dynamical system several times with di...

9년 초과 전 | 답변 수: 0 | 0

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How can I get a derivated function df/dt?
Hello, I'm trying to calculate derivate functions like z(t)=cos(x(t))+y(t)^2 and I expect answers like z'(t)=-x'(t)*sin(x(t))...

9년 초과 전 | 답변 수: 1 | 0

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Struggling with ode45 MATLAB function
Hello everybody, I'm trying to introduce my function into ode45 to solve it but it messages me "Not enough input arguments". ...

9년 초과 전 | 답변 수: 1 | 0

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How to speed up my while loops
Hello, I have been looking for ways to speed up my code because sometimes I spend some hours at running once MATLAB. I've rea...

9년 초과 전 | 답변 수: 1 | 0

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How can I speed up importing large .d files?
Hi, soon I'll have large files, about 50000x6 (more than one of them) and I'll have to work on them several times to plot di...

9년 초과 전 | 답변 수: 2 | 0

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Why do I get different outputs at different run's?
Thanks to everybody for your comments. I see global variables are a mess. I finally solved the problem this way: fun goes from ...

9년 초과 전 | 0

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Why do I get different outputs at different run's?
Hi, there's something very odd happening with my code. I'm doing three times the same calculations for three different input va...

9년 초과 전 | 답변 수: 1 | 0

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Am I overwriting data?
Hi, I need to get three different orbits and I think I might be overwriting data because when I plot them together I just get...

9년 초과 전 | 답변 수: 1 | 0

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How to plot different length vectors
Hi, I need to plot different orbits in one figure. The coordinate vectors are result of a Runge-Kutta 7-8 so I can't kno...

9년 초과 전 | 답변 수: 1 | 0

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