NB: More recent documentation for Dyalog APL is available at https://docs.dyalog.com/20.0/.

Downstile ⌊
Monadic Downstile means

Floor 

      ⌊ 3.4 ¯3.4 3 0
3 ¯4 3 0
Dyadic Downstile means

Minimum 

      1.1 ¯2 ⌊ 8.1 ¯3.4
1.1 ¯3.4

      ⌊/ 3 1 4 1
1

Language Elements