Here's Hessian-Free Newton-Krylov on neural ODEs with Julia: https://diffeqflux.sciml.ai/dev/examples/second_order_adjoints/ https://diffeqflux.sciml.ai/dev/exa

Here's Hessian-Free Newton-Krylov on neural ODEs with Julia: https://diffeqflux.sciml.ai/dev/examples/second_order_adjoints/ https://diffeqflux.sciml.ai/dev/examples/second_order_adjoin... . It's just standard tutorial stuff at this point.