MATLAB: I cant understand meaning of this comment . whenever i run program it show this msg. suggest any solution

bifurcationMATLAB

 Maximum recursion limit of 500
reached. Use set(0,'RecursionLimit',N)
to change the limit.  Be aware that
exceeding your available stack space
can
crash MATLAB and/or your computer.

Error in ==> ode45

Best Answer

You have a function that directly or indirectly calls itself. It did so 500 times without returning in your run. That usually means you have done this inadvertently in your code and you likely have a bug in your code (a forever recursion).

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MATLAB: Maximum recursion limit error

ode45 should be called outside the ODE function. Your actual ode function is this

function dv=Question3(t,v)
% dv/dt=8-4
dv=4;
end

and then you need to call ode45 from a separate script

to=0;
tf=100;
tspan=[to tf];
v0=0;
[t,v]=ode45(@Question3,tspan,v0);
plot(t,v(:,1));
xlabel('Time(s)');
ylabel('Volume(l)');

MATLAB: Problem with ode45 to solve non-linear system and generate phase portrait.

Create a separate function file called embebidos.m containing only this code:

function dy=embebidos(t,y)
dy=zeros(2,1);
dy(1)=y(2);
dy(2)=-10*sin(y(1));
end

Then call it from your main script:

[t,Y]=ode45(@embebidos,[0 5],[0 3]);

EDIT — To plot the phase portrait, create an ‘options’ structure with odeset, specifying the output function as odephas2:

options = odeset('OutputFcn',@odephas2,'OutputSel',[1 2]);

See the documentation for ode45 and odeset for details.

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Related Solutions

MATLAB: Maximum recursion limit error

MATLAB: Problem with ode45 to solve non-linear system and generate phase portrait.

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