Re: An example of a multiplication table: some unresolved questions

[Oliver Corff]

Dear Thomas,

thank you very much indeed.

Beyond your critical correction of using a genuine tab (0x09) character
instead of \t, it was \c which does the trick.

Furthermore, my setting of tab stops had been flawed.

I now use

.ta T 6m

which works as desired. Yet I still run into a now definitely minor problem.

Given the general syntax .ta T 6mX where X is one of L C R,

I get the same output for any of L C R, the numbers are always adjusted
to the left.

1     2     3     4     5     6
2     4     6     8     10    12
3     6     9     12    15    18

instead of

1     2 3     4     5     6
2     4     6     8    10    12
3     6     9    12    15    18

I think I can tinker with prepending \~.

I produce the output as follows:

$ groff -Tascii table.roff | less

Thank you very much again, best regards,

Oliver.

On 29/05/2023 23:29, Thomas Dupond wrote:
> Dear Oliver,
>
> Oliver Corff <oliver.corff@email.de> wrote:
>
> > Dear All,
> >
> > the attached attempt to create a multiplication table was inspired by
> > https://rosettacode.org/wiki/Multiplication_tables
> >
> > but I fail to do the right thing with regard to typesetting the computed
> > output.
> >
> > I followed the groff manual, section Tabs and Fields, and set up my tab
> > positions as follows:
> >
> > .ta 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR
> >
> > So, 12 tab stops at a distance of 4 m (I never have more than three
> > digits in my table example), all right-justified.
> >
> > However, the \t escape seems to be completely ignored.
> >
> > The alternative, conditionally prepending \~ if \n[p] < 100 and \~\~ if
> > \n[p] < 10 also seems to fail.
> >
> > Thank you all for your enlightenment!
> Does this example fill some of what you are trying to achieve?
>
> .nf
> .ta 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR 4mR
> .nr x 1 1
> .nr y 1 1
> .nr p 0
> .while (\n[x] <= 12) \{\
> .while (\n[y] <= 12) \{\
> .nr p \n[x]*\n[y]
> \n[p]   \c
> .nr y +1
> .\}
> .br
> .nr x +1
> .nr y 1 1
> .\}
--
Dr. Oliver Corff
mailto:oliver.corff@email.de