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Marlon Saveri Silva


Last seen: plus de 3 ans il y a |  Actif depuis 2015

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How to change the initial condition of a customized block on Simscape?
Dear all, The default "Thermal Mass" block on SIMSCAPE presents Mass and Specific Heat as parameters. Since I would like The...

plus de 5 ans il y a | 1 réponse | 0

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How to delete a column from a TimeSeries?
Hello, I would like to know how to delete a column from a TimeSeries. I need to plot two curves in the same figure but di...

plus de 5 ans il y a | 1 réponse | 0

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Question


Can ode45 solve a ODE with space dependent parameters?
Hello, I read ode45() can solve functions with time dependent parameters like this below by interpolating f and g during ea...

presque 6 ans il y a | 1 réponse | 0

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How does Simscape solve nonlinear DAE?
I am dealing with a Simscape code to get the temperature of several bodies over time. Well, I tried to find an analytical expr...

presque 6 ans il y a | 1 réponse | 0

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Réponse apportée
Simscape block parameter, change dynamically during simulation
Dear all, I have the same question. I'd like to make the conductivity changes with the temperature; however, I didn't understand...

environ 6 ans il y a | 0

Réponse apportée
How to declare time dependent symbolic array?
I got a solution from another topic, but I'm not sure if it's the best, since some warnings appears on screen: T=sym([]); ...

plus de 6 ans il y a | 0

Question


How to declare time dependent symbolic array?
Hello, I need to solve the following differential equation odes=diff(T) == A*T + B; [VF,Subs] = odeToVectorField(...

plus de 6 ans il y a | 4 réponses | 1

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Question


How to solve a system of n differential equations?
Hello everyone, I got the solution below from the help, I tried an example with a 3x3 system and it runs ok. However, when I try...

plus de 6 ans il y a | 1 réponse | 0

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Question


How to import data from external file to Matlab when a format repeats N times inside the file?
Dear all, I have a lot of files with the following format inside: First Line: title; Second line: subtitle; then, a MxN...

environ 9 ans il y a | 1 réponse | 0

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Réponse apportée
How to save checkbox values in an array?
Hi, I've gotten a solution: function checkbox1_Callback(hObject, eventdata, handles) CheckBoxValue=get(handles.chec...

plus de 9 ans il y a | 1

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Question


How to save checkbox values in an array?
Hi, this is the first time I use an userform at Matlab I introduced there some checkboxes and I would like to save their valu...

plus de 9 ans il y a | 1 réponse | 0

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Question


How to create a series of variables of data?
Hi, I need to create a lot of variables like these: K01 = importdata('20150715-PowerDensity_60x60_Mesh300_28m_vs_K-1.dta', ...

plus de 9 ans il y a | 1 réponse | 0

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How to solve a non-linear equation where each element of the array is a parameterized function?
For example. I tried this, but it's not running: function res = myfunc2(t,y,yp) %myfunc2 Function to test ODE with 2 va...

plus de 9 ans il y a | 0

Question


How to solve a non-linear equation where each element of the array is a parameterized function?
Dear all, I need to solve an equation with the following form: [f(a,b,c); g(a,b,c); p(a,b,c)] = [0; 0; q(t)] Ok, it's ...

plus de 9 ans il y a | 2 réponses | 0

2

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How to select a cell from an array when this array is made of functions of a parameter?
Thanks. But MatLab returns this error: Error using symfun/subsref (line 143) Cell indexing and structure indexing are ...

plus de 9 ans il y a | 0

Question


How to select a cell from an array when this array is made of functions of a parameter?
Dear all, Consider an array A = [a(t) b(t) c(t)].'; I want to select b(t). However, when I enter "A(2)", MatLab retu...

plus de 9 ans il y a | 2 réponses | 1

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Question


How can I get the Jacobian when the variables are functions of time?
syms x(t) y(t) syms Psi(t) Theta(t) R(t) x(t)= [Psi(t) Theta(t) R(t)].'; r(t)= [R*cos(Psi(t))*sin(Theta(t)) R*sin(Ps...

plus de 9 ans il y a | 1 réponse | 0

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Question


How to get the jacobian of a symbolic vector?
Hi, The following code uses diff(X) and jacobian(r,X) in order to get velocity and accelaration of a point. However, this err...

plus de 9 ans il y a | 1 réponse | 0

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