Adding conditions / additional input to ode45 function
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Hello, I'm using ode45 and I want to be able to add an input ('i') which will determine a parameter in the function I put in the ode45:
[T,V] = ode45(@myfun,[0 20],vec_0);
and the function (shortened) is:
function dy = myfun(t,y)
dy=zeros(4,1);
if i==1
I_inj = 20;
elseif i==2
I_inj = 40;
% etc...
end
dy(1) = ...
dy(2) = ...
dy(3) = ...
dy(4) = ... + I_inj;
I've tried to add 'i' in the inputs of the function: function dy = hh(t,y,i) but I couldn't understand how to input 'i' in the ode45 function ( [T,V] = ode45(@myfun,[0 20],vec_0); ) I'll be happy to know how to do that or if there are other ways to set conditions to a function for ode45. Thanks a lot!
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Accepted Answer
Steven Lord
on 2 May 2017
While this documentation page uses fzero in its examples, the same techniques work for passing additional parameters into the ODE functions that you specify as the first input when you call ode45.
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