MATLAB: Doubt regarding ode45 plotting

ode45plotting

Dear Friends,

I need to plot ABS(B(1)) Vs delk in the following program code. How can i include delk variable in the ode45 function calling line.

Best Answer

Please make more clear what you try to plot.

As far as I can see, delk is a model parameter (scalar).

B is a vector (solution at different times).

You can't plot a vector over a scalar.

I guess you want to plot different solutions B over time for different values of delk.

For this puropse, you have to generate different solutions B (e.g. in a loop in which you call ODE45 several times for changing values of delk).

Best wishes

Torsten.

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MATLAB: Solving coupled equations in Matlab

See the documentation on Ordinary Differential Equations.

First, follow the documentation and write your ODE function, then use the appropriate ODE solver (try ode45 first) to integrate it. If you have problems, describe them, completely copying and pasting any error messages that occur, and attach your script and your ODE function files. We will do our best to help you get your code running if you need our help.

MATLAB: Differentiation of a vector wrt a vetor

Assuming Ls and delk are of the same size:

diff(Ls)./diff(delk)

Best Answer

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MATLAB: Solving coupled equations in Matlab

MATLAB: Differentiation of a vector wrt a vetor

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