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Gabriele Galli


Last seen: plus de 3 ans il y a |  Actif depuis 2020

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Help with ODE system inside lsqnonlin
Hi All, I am getting the following error when simulating a system of ODE inside lsqnonlin: I have two ICs and it looks to me...

plus de 3 ans il y a | 1 réponse | 0

1

réponse

Question


Parameter estimation in nonlinear state space model using lsqnonlin
Hello All, I have a nonlinear state space model and I would like to perform parameter estimation using the function lsqnonlin. ...

plus de 3 ans il y a | 1 réponse | 0

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réponse

Question


Permutation matrix P in the qr function
Hello, I understand that using the following sintax [Q,R,P]=qr(A) I obtain the QR decomposition of the matrix A and, P is a p...

plus de 3 ans il y a | 2 réponses | 0

2

réponses

Question


Eigenvalues (eig) and singular values (svd)
Hello, My understaing is that the relationship between eigenvalues () > 0, and singular values () is the following one: Wher...

presque 4 ans il y a | 1 réponse | 0

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réponse

Question


How to find the probability (between 0 and 1) of an observation knowing that follow a Normal dist. and knowing its mean and variance?
Hi All, I know the mean and st. dev. of a Normal distribution and I would like to find the probability (between 0 and 1) of an ...

presque 4 ans il y a | 1 réponse | 0

1

réponse

Question


Error using odearguments with a symbolic system of differential equations
Hello Everyone, I got the following errors: Error using odearguments (line 113) Inputs must be floats, namely single or doubl...

environ 4 ans il y a | 1 réponse | 0

1

réponse

Question


How to speed up the simulation time of a big system of ODEs?
Hi Everyone, I have a big system of equations (378 diff. equations) and I have to simulate it using an ODE solver (I am using ...

environ 4 ans il y a | 1 réponse | 0

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réponse

Question


ODE with input a symbolic matrix
Hello All, I wrote the following function using syms variables and its output (i.e. Sxd) is a system of 12 equations contained ...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

Question


Connecting a Matlab function to Modelica
Hello All, I am trying to connect dynamically a MATLAB function to a Modelica Model. This Matlab function I created is based o...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

Question


Save a toolbox to be directly accessible to Matlab
Hello, I have a toolbox and I want that MATLAB automatically access to it. How can I do? Do I have to save it in a particular ...

presque 5 ans il y a | 1 réponse | 0

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Réponse apportée
SUNDIALS installation in MATLAB
Dear Arthur, Thank you so much for the quick reply! Sure, the download link is the following one: https://computing.llnl.go...

presque 5 ans il y a | 0

Question


SUNDIALS installation in MATLAB
Hi All, I need to use IDA solver in MATLAB but I am not able to use it. I have downloaded the installation folder which contai...

presque 5 ans il y a | 3 réponses | 0

3

réponses