Julia: https://juliadiff.org/ChainRulesCore.jl/stable/FAQ.html#Wher...? (bottom)
OCaml: https://ocaml.xyz/book/
Julia: https://juliadiff.org/ChainRulesCore.jl/stable/FAQ.html#Wher...? (bottom)
OCaml: https://ocaml.xyz/book/