Extended Dyalog APL

Extended Dyalog APL features extended domains of existing primitives and quad names and adds a few new ones to Dyalog APL. It was an experimental project that is no longer maintained. Quoting from project README.md: "This project serves as a breeding ground for ideas. While some have been adopted into Dyalog APL proper, it is unlikely that many will be. Furthermore, Dyalog 18.0 gave a different meaning to monadic ≠ than proposed here, leaving Extended Dyalog APL as a deadend."

Influence
Many of the extensions have been adopted into dzaima/APL, while Dyalog APL added Constant and introduced non-experimental case conversion as a   function rather than the proposed operator. Dyalog is also considering adding Reverse Compose, From, and Depth.

Features
The following extensions were made: *  🔺 means new feature 🔶 means added valence 🔵 means expanded domain