⍝ Upper-casification:

    ucase 2 8⍴'please, speak up'
PLEASE, 
SPEAK UP

    ucase 4↓⎕av
 	⌶ɫ%'⍺⍵_ABCDEFGHIJKLMNOPQRSTUVWXYZ¯.⍬0123456789⊢¥$£¢∆ABCDEFGHIJKLMNOPQRSTUVWXYZý·⍙ÁÂÃÇÈÊËÌÍÎÏÐÒÓÔÕÙÚÛÝþãìðòõ{€}⊣⌷¨ÀÄÅÆ⍨ÉÑÖØÜßÀáâÄÅÆçèÉêëíîïÑ[/⌿\⍀<≤=≥>≠∨∧-+÷×?∊⍴~↑↓⍳○*⌈⌊∇∘(⊂⊃∩∪⊥⊤|;,⍱⍲⍒⍋⍉⌽⊖⍟⌹!⍕⍎⍫⍪≡≢óôÖØ"#&´┘┐┌└┼─├┤┴┬│@ùúû^Ü`∣¶:⍷¿¡⋄←→⍝)] §⎕⍞⍣

    ⎕ucs ucase ⎕ucs 97 9056 98          ⍝ [8692] 'a<variant>b' → 'A<variant>B'
65 9056 66

⍝ Alternative codings:

    lc←'abcdefghijklmnopqrstuvwxyzåäöàæéñøü'    ⍝ (lower case alphabet)
    uc←'ABCDEFGHIJKLMNOPQRSTUVWXYZÅÄÖÀÆÉÑØÜ'    ⍝ (upper case alphabet)

    ucase ← ⌷∘(uc,⎕av)∘⊂∘((lc,⎕av)∘⍳)           ⍝ upper-casification.

    ucase 2 8⍴'please, speak up'
PLEASE, 
SPEAK UP

    ucase ← (lc,⎕av)∘⍳{⍵⍵[⍺⍺ ⍵]}(uc,⎕av)        ⍝ upper-casification.

    ucase 2 8⍴'please, speak up'
PLEASE, 
SPEAK UP

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