DelayDiffEq.jl
DelayDiffEq.jl copied to clipboard
SciML
Delay differential equation (DDE) solvers in Julia for the SciML scientific machine learning ecosystem. Covers neutral and retarded delay differential equations, and differential-algebraic equations.
I wanted to modulate a DDE system at equidistant points in time. But if the constant_lags=[τ] parameter is set some combinations of delay times and distance between modulations don't work....
Hi Everyone, The following is a question I recently asked on Julia Discourse (https://discourse.julialang.org/t/dde-too-stiff-required-tolerances-are-too-slow/52259) about an issue solving a very stiff set of DDEs. I found some improvement by tweaking...
I would like to try some neat heuristic that's used in RADAR5 and that I assume could be helpful for non-smooth solutions such as the artificial example in RADAR5 due...
StochasticDiffEq.jl has a very similar structure to OrdinaryDiffEq.jl. With some tweaks it should be possible to make DelayDiffEq.jl handle both of them, in which case we'll have the first stochastic...
Just like https://github.com/JuliaDiffEq/DelayDiffEq.jl/pull/137, Wfact and all of that can get added.
Hello, I am working on an optimization problem for delay differential equation, and I wanted to use forward differentiation using `optimize(...; autodif:=forward)`, but it doesn't work. This is the error...
As discussed in https://github.com/JuliaDiffEq/DiffEqProblemLibrary.jl/pull/39, especially for the history function it seems reasonable to pass the full integrator as argument instead of only the parameters, i.e., having `h(integrator, t)` instead of...
Dear All, I'm involved to simulate a result from a dynamic model in laser to match with measured experimental results and I fail to obtain expected result in Matlab (using...
This commit https://github.com/JuliaDiffEq/DelayDiffEq.jl/pull/72/commits/d3c5baeaf35e94433e3a5fd8075d0d3c15067f8b turned exact checks to approximate checks because the inplace vs outofplace versions now only step within floating point error. This is a minor point would could be...
In my opinion, DelayDiffEq is a lot more complicated than it should be, which also makes analysis and fixes more difficult. Hence I started to think about how the current...