Function of ODE can not be executed well.

2017 6 26

1 个回答

更新时间：2021 8 20

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0 个投票

When I call and execute this function,I get an error.

function dy = myODE(~,y)
dy(1) = y(2);
dy(2) = y(1)*y(2)-2;
end

%code start

[t,y] = ode23(@vdp1,[0 20],[2; 0]);

%code end

0 个评论
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James Tursa 2017-6-26

0 个投票

Make sure the derivative function returns a column vector. E.g.,

function dy = myODE(~,y)
dy = zeros(2,1);  % <-- column vector
dy(1) = y(2);
dy(2) = y(1)*y(2)-2;
end

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