History function for ODE45

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Hi everyone
I am currently solving an equation using ODE45 in matlab. I had a question though.
Is that possible to define a history function for ODE45 instead of initial conditions?
Thank you in advance for you help.

Accepted Answer

Bjorn Gustavsson
Bjorn Gustavsson on 25 Oct 2021
Since ode45 solves systems of first-order differential equations on the standard form the history does not matter, so I've never seen a way to incorporate that into ode45-calls. If your differential equations depend on the history you perhaps have a delay-differential equation - which can be handled with dde23, look at the help and documentation to that function...
  1 Comment
shahin sharafi
shahin sharafi on 25 Oct 2021
Thank you very much.....

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