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Mohammad Farhat


Last seen: plus d'un an il y a |  Actif depuis 2020

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Reading data of nonstandard format
Hello, The data file I'm trying to read contains text headers separating two column matricies that I want to save separately. ...

plus de 2 ans il y a | 1 réponse | 0

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réponse

Question


Stopping ode45 when encountering errors and retrieving results
%% UPDATE: Actual code now attached. I am using an ode45 solver to solve a nonlinear ODE. The code uses many functions, so to...

presque 3 ans il y a | 2 réponses | 0

2

réponses

Question


Spectrogram - Frequency Range
I'm trying to create a spectrogram for a data with very low frequency (data over million of years, periodicities over tens to h...

plus de 3 ans il y a | 1 réponse | 0

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réponse

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How to read an unformatted fortran 90 output bin file in matlab?
I have a fortran bin output file that was generated using OPEN(10,file=f_out_g, status="unknown",form="unformatted") and in it...

plus de 3 ans il y a | 1 réponse | 0

1

réponse

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Compute derivative of spline function at a certian value
If I have x,y data, and I spline interpolate them: sp=spline(x,y); D=@(x) ppval(sp,x); I want to compute the value of the der...

presque 4 ans il y a | 2 réponses | 0

2

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Question


Matlab Update Failure - Solution in Uninstall then Re-install?
I followed matlab notifications on updates. I have the 2018b version. First update was 2018b version update 2. Another notifi...

presque 4 ans il y a | 1 réponse | 0

1

réponse

Question


Ode45: setting initial conditions from plotted figure
I'm not familiar at all with interactive plotting in matlab. I'm integrating via ode45, and I have to loop the integration for ...

environ 4 ans il y a | 1 réponse | 0

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réponse

Question


Ode45, evolution giving NaNs after some time, with no evidence of singularities in the equations
Hello, Attached is a simple integrator for four coupled first order ode s. after a certain time, the 4-vector solution turns ...

environ 4 ans il y a | 1 réponse | 0

1

réponse

Question


Ode45: constraining values of variables evolution
How can I constrain the values of the integrated variables in ode45. I found "opts = odeset('NonNegative',1)" can constrain ...

environ 4 ans il y a | 1 réponse | 0

1

réponse