I want to study effects on a DDE model when I add another component to the system. Using resize! and callbacks doesn’t work . Therefore I want to solve the DDE model for n components across some time span, then use this as the initial condition and system history for a second DDE problem with n + 1…

[image] jewh: However it is not clear to me how to use the output of solve(prob, alg) to define the history function h(p, t) to achieve this, as solve returns a vector with (often) variable timesteps between values. The output of solve is a sol(t) function so h(p,t) = sol(t) just works.

Using solution of DDE model as history for another (larger) DDE problem

Specific Domains Numerics

ChrisRackauckas August 5, 2023, 10:56pm 2

The output of solve is a sol(t) function so h(p,t) = sol(t) just works.

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Unable to change system size in DDE problem using DifferentialEquations.jl