APL

APL is A Programming Language with its own special character set combining Greek letters, math symbols, and more. Its characters do not have a Unicode block of their own, but are scattered widely. Here are the APL characters included in Unicode, with their Unicode block names.

A-Z, 0-9, !?()[]',.:/\-_ (ASCII)
¨¯ (Latin-1)
αειρω (Greek)
←↑→↓ (Arrows)
 <=>×÷∆∇∗∘∣∧∨∩∪∼⊂⊃⊢⊣⊤⊥ (Math)
⌶⌷⌸⌹⌺⌻⌼⌽⌾⌿⍀⍁⍂⍃⍄⍅⍆⍈⍉⍊⍋⍌⍎⍏⍐⍑⍒⍓⍔⍕⍖⍗ (Miscellaneous Technical Symbols)
⍘⍙⍚⍛⍜⍝⍞⍟⍠⍡⍢⍣⍤⍥⍦⍧⍨⍩⍪⍫⍬⍭⍮⍯⍰⍱⍲⍶⍷⍸⍹ (Miscellaneous Technical Symbols)
◇ (Block Elements