# Replication of \*Universal Differential Equations for Scientific Machine Learning\* for Lotka Volterra

**URL:** <https://discourse.julialang.org/t/replication-of-universal-differential-equations-for-scientific-machine-learning-for-lotka-volterra/95695>\
**Category:** Modelling & Simulations\
**Tags:** question\
**Created:** [March 7, 2023, 9:09pm UTC](https://discourse.julialang.org/t/replication-of-universal-differential-equations-for-scientific-machine-learning-for-lotka-volterra/95695 "2023-03-07T21:09:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Stefano\_Giampiccolo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stefano_giampiccolo/32/46018_2.png) [@Stefano\_Giampiccolo](https://discourse.julialang.org/u/Stefano_Giampiccolo)\
**Post date:** [March 7, 2023, 9:09pm UTC](https://discourse.julialang.org/t/replication-of-universal-differential-equations-for-scientific-machine-learning-for-lotka-volterra/95695/1 "2023-03-07T21:09:01Z")

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Hi everyone,  
I’m trying to replicate the results of Scenario 1 Lotka Volterra from the repository [GitHub - ChrisRackauckas/universal\_differential\_equations: Repository for the Universal Differential Equations for Scientific Machine Learning paper, describing a computational basis for high performance SciML](https://github.com/ChrisRackauckas/universal_differential_equations/tree/master). Is it possible that I can’t replicate the results of the preprint _Universal Differential Equations for Scientific Machine Learning_? I’m using Julia v1.8.5, but I am activating and instantiating the manifest present in the repository, so all the package versions should be consistent with the original environment. Thank you very much, Stefano

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**Author:** ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Post date:** [March 8, 2023, 4:16am UTC](https://discourse.julialang.org/t/replication-of-universal-differential-equations-for-scientific-machine-learning-for-lotka-volterra/95695/2 "2023-03-08T04:16:36Z")

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> [@Stefano\_Giampiccolo](#):
>
> Is it possible that I can’t replicate the results of the preprint _Universal Differential Equations for Scientific Machine Learning_?

See the docs.

[https://docs.sciml.ai/Overview/stable/showcase/missing\_physics/](https://docs.sciml.ai/Overview/stable/showcase/missing_physics/)