Re: Table rows and ranges as LHS of formulas

[Christian Moe <mail@christianmoe.com>]

Hi, Carsten,

Yes, it's really neat.

I just realized, though, that there *is* an equally clean way to 
generate such tables in OOo Calc (which the Org spreadsheet has all 
but replaced for my needs):

- Place 1 in cell B1. Drag across to get 1-10 in cells B1:K1.
- Place 1 in cell A2. Drag down to get 1-10 in cells A2:A11.
- In cell B2, type the formula =B1:K1*A2:A11. Do NOT press Enter, 
press Ctrl-Shift-Enter (or Cmd-Shift-Enter on Mac) to make it an 
"array formula" (it presents as {=B1:K1*A2:A11}).
- Hey presto, the table is filled.

Yours,
Christian


On 3/2/11 6:31 PM, Carsten Dominik wrote:
> Hi Christian,
>
> thanks for the great example!  I guess this is really something
> Org has over other spreadsheets.  No copy-and-paste-with-modification,
 > just a single formula.
>
> - Carsten
>
> On 2.3.2011, at 17:11, Christian Moe wrote:
>
>> Hi,
>>
>> Row formulas are great! I've missed this, but learned to work around it, since I I just assumed that if you hadn't already done it, it was not a reasonable thing to ask for.
>>
>> Testing... So now we can simply do e.g.:
>>
>> #+CAPTION: A multiplication table
>> |    | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
>> |----+---+---+---+---+---+---+---+---+---+----|
>> |  1 |   |   |   |   |   |   |   |   |   |    |
>> |  2 |   |   |   |   |   |   |   |   |   |    |
>> |  3 |   |   |   |   |   |   |   |   |   |    |
>> |  4 |   |   |   |   |   |   |   |   |   |    |
>> |  5 |   |   |   |   |   |   |   |   |   |    |
>> |  6 |   |   |   |   |   |   |   |   |   |    |
>> |  7 |   |   |   |   |   |   |   |   |   |    |
>> |  8 |   |   |   |   |   |   |   |   |   |    |
>> |  9 |   |   |   |   |   |   |   |   |   |    |
>> | 10 |   |   |   |   |   |   |   |   |   |    |
>> #+TBLFM: @2$2..@11$11=@1*$1
>>
>> C-c C-c...and hey presto:
>>
>> #+CAPTION: A multiplication table
>> |    |  1 |  2 |  3 |  4 |  5 |  6 |  7 |  8 |  9 |  10 |
>> |----+----+----+----+----+----+----+----+----+----+-----|
>> |  1 |  1 |  2 |  3 |  4 |  5 |  6 |  7 |  8 |  9 |  10 |
>> |  2 |  2 |  4 |  6 |  8 | 10 | 12 | 14 | 16 | 18 |  20 |
>> |  3 |  3 |  6 |  9 | 12 | 15 | 18 | 21 | 24 | 27 |  30 |
>> |  4 |  4 |  8 | 12 | 16 | 20 | 24 | 28 | 32 | 36 |  40 |
>> |  5 |  5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 |  50 |
>> |  6 |  6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 | 54 |  60 |
>> |  7 |  7 | 14 | 21 | 28 | 35 | 42 | 49 | 56 | 63 |  70 |
>> |  8 |  8 | 16 | 24 | 32 | 40 | 48 | 56 | 64 | 72 |  80 |
>> |  9 |  9 | 18 | 27 | 36 | 45 | 54 | 63 | 72 | 81 |  90 |
>> | 10 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
>> #+TBLFM: @2$2..@11$11=@1*$1
>>
>>
>> Yours,
>> Christian
>>
>> On 3/1/11 3:28 PM, Carsten Dominik wrote:
>>> Hi everyone,
>>>
>>> A frequently requested feature for tables has been to
>>> be able to define row formulas in a way similar to column
>>> formulas.  The patch below allows things like
>>>
>>>     @3=
>>>     @2$2..@5$7=
>>>     @I$2..@II$4=
>>>
>>> as the left hand side for table formulas in order to
>>> write a formula that is valid for an entire column or
>>> for a rectangular section in a table.
>>>
>>> Note that in contrast to column formulas, @3= will not
>>> automatically skip a "header column" or field formulas in the
>>> same row.  In fact, making both a range formula and a field
>>> point to the same field is forbidden and throws an error.
>>> So to have a formula apply to all but the first column, use
>>> something like this:
>>>
>>>      @3$2..@3$8=....
>>>
>>> Testing is welcome, but I am confident that this works
>>> pretty well.
>>>
>>> Bastien, please let me know if you want to have this integrated
>>> before the release, then I will do so.
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Emacs-orgmode mailing list
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>>> Emacs-orgmode@gnu.org
>>> http://lists.gnu.org/mailman/listinfo/emacs-orgmode
>>
>
>


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