# ANN: bifurcation package for delay differential equations DDEBifurcationKit

**URL:** https://discourse.julialang.org/t/ann-bifurcation-package-for-delay-differential-equations-ddebifurcationkit/92270
**Category:** Package Announcements
**Tags:** package
**Created:** [December 29, 2022, 1:51pm UTC](https://discourse.julialang.org/t/ann-bifurcation-package-for-delay-differential-equations-ddebifurcationkit/92270 "2022-12-29T13:51:15Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![rveltz](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rveltz/32/2707_2.png) [@rveltz](https://discourse.julialang.org/u/rveltz)
#### Post date: [December 29, 2022, 1:51pm UTC](https://discourse.julialang.org/t/ann-bifurcation-package-for-delay-differential-equations-ddebifurcationkit/92270/1 "2022-12-29T13:51:15Z")

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Dear all,

I am writing this post to announce a new package [DDEBifurcationKit.jl](https://github.com/bifurcationkit/DDEBifurcationKit.jl) for the study of bifurcations of delay differential equations. It is hosted on the bifurcationkit organisation as it heavily relies on BifurcationKit.jl

The [docs](https://bifurcationkit.github.io/DDEBifurcationKit.jl/dev/) provides some tutorials and description of the methods.

Some of the current functionalities are

- continuation of equilibria and detection of bifurcations for Constant delays or state-dependent-delays
- continuation (codim 2) of Fold / Hopf points for Constant delays or state-dependent-delays with detection of codim 2 bifurcation points.
- continuation of periodic orbits for constant / state-dependent delays using orthogonal collocation (Stability not implemented yet)

I hope some of you will find it useful,

Best