On Wed, Sep 04, 2002 at 07:44:15PM +0300, Dekel Tsur wrote:
> On Tue, Sep 03, 2002 at 10:32:00PM +1000, John Sheahan wrote:
> > Hi
> >
> > In my lyx doc I'd like to be able to add up a couple of
> > numbers, perhaps in a table, maybe in a paragraph, get a total
> >
> > and then be able to copy the result (sort of like a label)
> > somewhere else in the document, as a summary.
> >
> > Is this possible somehow?
>
> It is possible using latex code:
> \newcounter{tmp}
> \setcounter{tmp}{0}
> \addtocounter{tmp}{10}
> \addtocounter{tmp}{5}
> \arabic{tmp}
>
> To save typing, you can use
> \newcommand{\add}[1]{\addtocounter{tmp}{#1}}
> and then you can write \add{10} instead of \addtocounter{tmp}{10}
Thanks Derek, Andre
I discovered also I could use an external escape to the shell with
something like echo $[ 1 + 2 ] arter tweaking external_templates.
(lets not consider security here for a few minutes)
or I could include tex from gnumeric with additional processing.
while I do not understand the math_extern at all - and could really use
a pointer/example code here, these solutions appear to suffer from
2 disadvantages
firstly, I'd quite like to be able to read the half dozen numbers I am
adding from the lyx window. If I really want to include a big spreadsheet
somehow I can do that, but it seems overkill for addimg a couple of
numbers that maybe are in a table, maybe in the text but are described
with text. And its nice to see the sum at write time also
secondly, I want to gather a few numbers from random sections together
in the summary chapter. And to be really difficult my summary is at
the start of the document. \arabic{blah} appears to work as long as the
summary is after the sum.
Given the number of documents I've read where there are obselete
sections after a couple of changes, many word processors must have
this problem.
regards, John
