⍝ Lower-casification:
lcase 2 7⍴'PLEASE WHISPER'
please
whisper
lcase 4↓⎕av
⌶ɫ%'⍺⍵_abcdefghijklmnopqrstuvwxyz¯.⍬0123456789⊢¥$£¢∆abcdefghijklmnopqrstuvwxyzý·⍙ÁÂÃÇÈÊËÌÍÎÏÐÒÓÔÕÙÚÛÝþãìðòõ{€}⊣⌷¨àäåæ⍨éñöøüßàáâäåæçèéêëíîïñ[/⌿\⍀<≤=≥>≠∨∧-+÷×?∊⍴~↑↓⍳○*⌈⌊∇∘(⊂⊃∩∪⊥⊤|;,⍱⍲⍒⍋⍉⌽⊖⍟⌹!⍕⍎⍫⍪≡≢óôöø"#&´┘┐┌└┼─├┤┴┬│@ùúû^ü`∣¶:⍷¿¡⋄←→⍝)] §⎕⍞⍣
⎕ucs lcase ⎕ucs 65 9056 66 ⍝ [8692] 'A<variant>B' → 'a<variant>b'
97 9056 98
⍝∇ lcase
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