DifferentialEquations.jl
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SciML
Multi-language suite for high-performance solvers of differential equations and scientific machine learning (SciML) components. Ordinary differential equations (ODEs), stochastic differential equation...
I'd like to apply a controller periodically in an ensemble simulation. The controller should act based on the current state of the integrator and change a parameter of the DE....
https://discourse.julialang.org/t/simulating-a-stopping-time-in-sde-without-using-a-fixed-time-span/45608/4 brings up an interesting issue that goes as follows. `terminate!` works by removing all current `tstops` to then cause the integration to leave. But if someone does `terminate!` and...
Hey, In an old post (https://github.com/SciML/DifferentialEquations.jl/issues/234) Chris showed how to solve such a problem, but I couldn't apply the code in a newer Julia version to a similar problem. In...
I have a recurring issue where, since I'm running a simulation on a PDE with a wide range of initial conditions, after the solve() call is finished large amounts of...
The event handling support in DifferentialEquations.jl is very robust and so far so great! However I have a situation in which my dynamics function is very expensive to compute. Therefore...
I wonder if it would be useful to add a solver that wraps [Richardson Extrapolation](https://github.com/JuliaMath/Richardson.jl) around another solver. You already have a limited form of this (Romberg integration for extrapolating...
I ran into issues while trying to solve 2nd order diffeqs in combination with `Unitful`. MWE: ``` using DifferentialEquations using Unitful import Unitful: m, s const ω = 0.5/s ddy(y)...
```julia using RecursiveArrayTools, OrdinaryDiffEq, SparseArrays function abundance_(dn,n,p,t) nh, nu = n dnh = dn[1] dnu = dn[2] for i in 1:N # choose species competition = 0 for k in...
As reported [here](https://discourse.julialang.org/t/changing-size-of-ode-system-resize-works-but-deleteat-doesnt/45900/4). Changing the size of the ODE system during integration with a callback throws an error when using some functions (eg resize! works but deleteat! does not) if...
Using an automatic solver to solve this sample problem does not allow for the compiler to infer the type of `sol1` or `sol2` at all. ```julia using DifferentialEquations function lorenz!(du,u,p,t)...
