chars ← ##.lcase chars                      ⍝ Lower-casification.

Returns  the  lower-case equivalent of its simple character array argument. Note
that  this function works with arguments of any rank. Note also, that the funct-
ion may easily be extended to work with "Dyalog ALT" or a font of our own.

Technical note: see →ucase←

Examples:

    lcase 2 7⍴'PLEASE WHISPER'
please
whisper

    charmat ← 5 7⍴'Baker  Fox    able   Dog    charlie'

    {⍵[⍋⍵;]} charmat             ⍝ case-sensitive sort.
able
charlie
Baker
Dog
Fox
    {⍵[⍋lcase ⍵;]} charmat       ⍝ case-INsensitive sort.
able
Baker
charlie
Dog
Fox

See also: ucase

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