Dyalog APL Vision

Dyalog APL Vision continues the role of Extended Dyalog APL, but tries to provide realistic extensions of Dyalog APL rather than simply extending the language as much as possible. It extends the domains of existing primitives and quad names and adds a few new ones.

Features
All scalar functions support leading axis agreement.
 * All set functions support arguments of any rank.
 * and monadic  are scalar functions.
 * In addition, the following is included:

*  🔺 new feature 🔶 added valence 🔵 expanded domain ⚠ breaking change ✅ scheduled for 20.0