Error as Function definitions are not permitted in this context.

Question

vetri veeran 2017-4-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/333486-error-as-function-definitions-are-not-permitted-in-this-context

回答： KSSV 2017-4-4

采纳的回答： KSSV

在 MATLAB Online 中打开

Hi all,

I am getting error as Function definitions are not permitted in this context.

My code:

function dydt = odefcn(t,y,A,B)
dydt = zeros(2,1);
dydt(1) = y(2);
dydt(2) = (A/B)*t*y(1);
A= 1;
B= 2;
tspan=[0 5];
y0 = [0 0.01];
[t,y]= ode15s(@(t,y) odefcn(t,y,A,B), tspan, y0);
plot(t,y(:,1),'-o',t,y(:,2),'-.' )

Could you please help me.

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Answer 1

KSSV 2017-4-4

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/333486-error-as-function-definitions-are-not-permitted-in-this-context#answer_261626

在 MATLAB Online 中打开

You have two options:

function Main
A= 1;
B= 2;
tspan=[0 5];
y0 = [0 0.01];
[t,y]= ode15s(@(t,y) odefcn(t,y,A,B), tspan, y0);
plot(t,y(:,1),'-o',t,y(:,2),'-.' )
end
function dydt = odefcn(t,y,A,B)
dydt = zeros(2,1);
dydt(1) = y(2);
dydt(2) = (A/B)*t*y(1);
end