How to plot a differential equation?
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Hello,
I've got the following differential equation: dN(t)/dt - ((k - (a*N(t)))*N(t)) = f(t) This is the logistic law of population growth. N(t) = #individuals. dN(t)/dt = the derivative of N(t) = change of # individuals = #individuals/s. k = velocity of growth = 1/s. a = an inhibition factor on the growth = 1/(#individual*s). f(t) = production function = #individual/s.
I want to plot this equation. How can I do this?
2 commentaires
Torsten
le 6 Nov 2017
Do you want to plot the equation or the solution to the equation ?
Best wishes
Torsten.
Réponses (1)
Torsten
le 6 Nov 2017
Modifié(e) : Torsten
le 6 Nov 2017
ezplot(NSol,[0,4]);
Best wishes
Torsten.
3 commentaires
Torsten
le 6 Nov 2017
ode = diff(N(t),t) == 2,309*N(t) - 2*N(t)^2;
I don't know what your ODE should look like, but the comma is wrong for certain.
Best wishes
Torsten.
Steven Lord
le 6 Nov 2017
Yes. The decimal separator in MATLAB is period (.) not comma (,), and to enter numbers in the thousands or greater omit the comma. The comma operator separates commands, elements in an array, or function input or output arguments.
Specify that coefficient as 2.309 or 2309 instead of 2,309.
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