Interesting! Hadn't heard about NiLang, but will check it out... Update: Looks like the related HN discussion is here: "Nilang.jl – A Reversible Julia DSL":

Interesting! Hadn't heard about NiLang, but will check it out... Update: Looks like the related HN discussion is here: "Nilang.jl – A Reversible Julia DSL": https://news.ycombinator.com/item?id=24743813 https://news.ycombinator.com/item?id=24743813 https://github.com/GiggleLiu/NiLang.jl https://github.com/GiggleLiu/NiLang.jl (Worth it, in my opinion, for the chart showing the "reversed-functions/variables" preceeded by '∂', i.e., ∂x, ∂y, ∂sqxN, etc.) But anyway, NiLang definitely looks interesting!