Re: Table rows and ranges as LHS of formulas

[Bernt Hansen <bernt@norang.ca>]

Hi Carsten,

This is really cool!

Thanks and Best Regards,
Bernt

Christian Moe <mail@christianmoe.com> writes:

> 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.
>>
>>
>>
>>
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