Comment on Which programming language is hard to understand?
shagie@programming.dev 1 year agowww.rosettacode.org/wiki/Category:APL and www.rosettacode.org/wiki/Category:J for fun links.
ackermann←{ 0=1⊃⍵:1+2⊃⍵ 0=2⊃⍵:∇(¯1+1⊃⍵)1 ∇(¯1+1⊃⍵),∇(1⊃⍵),¯1+2⊃⍵ }
Traditional APL required its own typewriter ball for printing out programs.