Description:
The example of the array formula is not appropriate for Version7.4 or later.

Steps to Reproduce:
1. Open a new Calc.
2. Select cell [A1]
2. Input the formula ={1;2;3}  (This is the 1st sample in Help)
3. Push Enter key (or Return key)

Actual Results:
4. Create a matrix (Automatically)

Expected Results:
4. Cell [A1] = 1 (Do not create matrix)


Reproducible: Always


User Profile Reset: No

Additional Info:
In the case of a very simple array formula, in Version7.4 or later, the matrix is automatically output without the operation of [Ctrl + Shift + ENTER].
Therefore, the example of help has become inappropriate.
To avoid confusion, you need to change the example.

https://help.libreoffice.org/7.5/en-US/text/scalc/01/04060107.html

Using Inline Array Constants in Formulas
Examples:

={1;2;3}
={1;2;3|4;5;6}
={0;1;2|FALSE;TRUE;"two"}
=SIN({1;2;3})

---
Other exsamples of array formula
=ROW(1:3)*TRANSPOSE(ROW(1:3))    -> Automatically
=ROW(1:3)*TRANSPOSE(CURRENT())   -> Automatically
=ROW(1:3)*COLUMN(A:C)      -> Need [ Ctrl + Shift + Enter ]

=ROW(1:3)+ROW(1:3)  -> Need [ Ctrl + Shift + Enter ]
=ROW(1:3)+CURRENT() -> Need [ Ctrl + Shift + Enter ]

Version: 7.5.2.2 (X86_64) / LibreOffice Community
Build ID: 53bb9681a964705cf672590721dbc85eb4d0c3a2
CPU threads: 4; OS: Windows 10.0 Build 10240; UI render: Skia/Raster; VCL: win
Locale: ja-JP (ja_JP); UI: ja-JP
Calc: threaded