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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...
4 years 前 | 1 个回答 | 0
1
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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. ...
4 years 前 | 0 个回答 | 0
0
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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...
4 years 前 | 2 个回答 | 0
2
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Eigenvalues (eig) and singular values (svd)
Hello, My understaing is that the relationship between eigenvalues () > 0, and singular values () is the following one: Wher...
4 years 前 | 1 个回答 | 0
1
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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 ...
5 years 前 | 1 个回答 | 0
1
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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...
5 years 前 | 1 个回答 | 0
1
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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 ...
5 years 前 | 1 个回答 | 0
1
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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 ...
5 years 前 | 1 个回答 | 0
1
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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...
5 years 前 | 1 个回答 | 0
1
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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 ...
5 years 前 | 1 个回答 | 0
1
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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...
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...
5 years 前 | 0
提问
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...
5 years 前 | 3 个回答 | 0
