Moritz

Attivo dal 2012

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Fitting a gamma distribition to x,y data
Dear all, i do have data from size distribution measurements. The data is like: number of counts in specific size class ( e.g...

oltre 10 anni fa | 0 risposte | 0

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fitting implicit function to data
Yes, you are right. I did not see the forest because of all the trees. Actually it is a lot faster this way. I use fmincon wi...

oltre 10 anni fa | 0

Domanda

fitting implicit function to data
Dear all, i am fitting an implicit function (SMA Isotherm) z(x,y) with lsqcurvefit but i wonder if there is a better solution...

oltre 10 anni fa | 2 risposte | 1

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Domanda

Fitting implicit surface equation
Dear all, following problem: I do have a 5x4 Matrix q(C,Cna) and would like to fit the implicit expression defined in the fun...

oltre 10 anni fa | 0 risposte | 0

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modify marker in plot of fitresults
Dear all, if plot my results with: h_fit = plot( fitresult,xData, yData,'o') and afterwards modify the markers with: ...

quasi 11 anni fa | 0 risposte | 0

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Domanda

Implizit surface fit of SMA Model; better way possible ?
Dear all, i am using lsqnonlin for this purpose. It works. I would like to know if there is a better way to do that? E.g usin...

quasi 11 anni fa | 0 risposte | 0

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Domanda

DDE23 solution from previous step for variable step size solver
Dear all, DDE23 is made for constant time delays. Since the solution of a previous step in a variable step size solvers produ...

quasi 11 anni fa | 0 risposte | 0

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Domanda

Coupled ODE to PDE with Method of lines
Dear all, i do have a PDE which describes sedimentation. I do discretize it in space and end up with a system of ode´s. Fairl...

quasi 11 anni fa | 0 risposte | 0

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Get contour matrix without plotting?
Have you tried contourc instead of contour ? It gives you the contour lines without any plots. [cline]=contour(Z,[1 1]); give...

quasi 11 anni fa | 4

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Domanda

Method of lines with e.g ode15s versus time stepping in c++
Hello, the last months i spent some of my time learning a lot about numerical methods for PDE`s. The outcome is an implenenta...

circa 11 anni fa | 0 risposte | 0

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how do i get the timestep of odesolver
Yeah, that is obvious but i do need the timestep in my ode. With a fixed time step it would be easy but with a variable timestep...

circa 11 anni fa | 0

Domanda

how do i get the timestep of odesolver
Hello, i do need the timestep in my equation. Is there a build in way to do that or do i have to monitor it somehow by storin...

circa 11 anni fa | 2 risposte | 0

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Domanda

bvp4c or classical odesolver
Hello, i solved an initial BVP by the method of lines in the following way: i=1; dvdt(i)= -omega^2/dx.*((xcen(i)...

circa 11 anni fa | 0 risposte | 0

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Stopping external Fortran Routine
Hello, is there a way to stop an external routine called from matlab ? E.g when the routine gets stuck or takes too long (bad...

oltre 11 anni fa | 1 risposta | 0

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Domanda

Test for mass conservation
Hello, i am not sure how to test my solution for a compressible sediment during centrifguation. I do not use mass but conc...