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?
回答（1 个）
ezplot(NSol,[0,4]);
Best wishes
Torsten.
3 个评论
Sam
2017-11-6
Torsten
2017-11-6
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
2017-11-6
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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2017-11-6
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