duboisbarron

/* Reverses an n-dimensional array */
REVERSE_ARR =LAMBDA(my_array,
    LET(
        row_length, ROWS(my_array),
        col_length, COLUMNS(my_array),

        IF(col_length = 1,
        /* its a vertical list, reverse it*/
        MAKEARRAY(row_length, 1, LAMBDA(row, col, INDEX(my_array, row_length - row + 1))),
        /* horizontal array */