# Is it possible to do Nested AD ~elegantly~ in Julia? (PINNs)

**URL:** <https://discourse.julialang.org/t/is-it-possible-to-do-nested-ad-elegantly-in-julia-pinns/98888>\
**Category:** General Usage\
**Tags:** machine-learning\
**Created:** [May 15, 2023, 5:12pm UTC](https://discourse.julialang.org/t/is-it-possible-to-do-nested-ad-elegantly-in-julia-pinns/98888 "2023-05-15T17:12:01Z")\
**Posts on this page:** 1\
**Showing post:** 43

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**Author:** ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)\
**Post date:** [September 19, 2024, 3:05am UTC](https://discourse.julialang.org/t/is-it-possible-to-do-nested-ad-elegantly-in-julia-pinns/98888/43 "2024-09-19T03:05:58Z")

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You can do forward-over-reverse (no finite differences required) as described in this thread: [Nested AD with Lux etc](https://discourse.julialang.org/t/nested-ad-with-lux-etc/113573)

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