Announcing New Text and Array Functions

This is inspired by HennSarv and draws upon that work.

What I have tried to do is go flat out for a functional programming style rather than creating a formula.

= GenerateBoardλ()

"GenerateBoardλ()"
= LET(
    dealt, Dealλ(),
    hands, BYCOL(dealt, SortHandλ),
    board, Tableλ(hands),
    board
  )

"Dealλ()"
= LET(
    deck,    SEQUENCE(52,,0),
    shuffle, RANDARRAY(52),
    dealt,   SORTBY(deck, shuffle),
    WRAPCOLS(dealt, 13)
)

"SortHandλ(cards)"
= LET(
    cardID, VSTACK({"A";"K";"Q";"J"},SEQUENCE(9,,10,-1)&""),
    suits,  UNICHAR(SEQUENCE(4,,9824)),
    cdIdx,  VSTACK({0;0;0;0}, 1 + MOD(+cards,13)),
    sIdx,   VSTACK(suits, INDEX(suits, 1 + QUOTIENT(+cards,13))),
    sorted, SORT(HSTACK(cdIdx, sIdx), {2,1}),
    vIdx,   TAKE(sorted,,1),
    suit,   TAKE(sorted,,-1),
    value,  IF(vIdx, INDEX(cardID, vIdx), ¶ & suit),
    TEXTJOIN(" ",, value)
  )

"Tableλ(hands)"
= LET(
    name,    "  " & {"North","East","South","West"},
    spaced,  VSTACK({"","","",""}, name & hand),
    reorder, CHOOSECOLS(spaced, 1,4,2,3),
    WRAPROWS(TOCOL(reorder,,1),3,"")
  )

I have used array shaping functions as the first option, for example the WRAPCOLS to split the dealt deck into hands.

The Pilcrow sign, "¶", is used as a defined name to hold the formula 

= CHAR(10)