* How to create a breakable text box inside math equation?
@ 2011-05-06 14:50 Mojca Miklavec
2011-05-06 20:33 ` Wolfgang Schuster
0 siblings, 1 reply; 3+ messages in thread
From: Mojca Miklavec @ 2011-05-06 14:50 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hello,
This is probably a very trivial question, but I'm not sure how TeX
works in that respect. I'm used to use a macro
\def\unit#1{{\rm\ #1}
in constructs such as $1\unit{cm^2} \times 2\unit{cm}$. However I
figured out that the contents of \unit{} cannot be broken accross
lines, most probably because this becomes an hbox.
Is there any simple workaround?
Thanks a lot,
Mojca
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* Re: How to create a breakable text box inside math equation?
2011-05-06 14:50 How to create a breakable text box inside math equation? Mojca Miklavec
@ 2011-05-06 20:33 ` Wolfgang Schuster
2011-05-10 17:03 ` Mojca Miklavec
0 siblings, 1 reply; 3+ messages in thread
From: Wolfgang Schuster @ 2011-05-06 20:33 UTC (permalink / raw)
To: mailing list for ConTeXt users
Am 06.05.2011 um 16:50 schrieb Mojca Miklavec:
> Hello,
>
> This is probably a very trivial question, but I'm not sure how TeX
> works in that respect. I'm used to use a macro
> \def\unit#1{{\rm\ #1}
> in constructs such as $1\unit{cm^2} \times 2\unit{cm}$. However I
> figured out that the contents of \unit{} cannot be broken accross
> lines, most probably because this becomes an hbox.
>
> Is there any simple workaround?
\def\unit{\groupedcommand{\rm\ }{}}
or
\def\unit#1{\bgroup\rm\ #1\egroup}
{ and } are same as \begingroup and \endgroup in math mode and prevent and a line break of the content.
Wolfgang
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* Re: How to create a breakable text box inside math equation?
2011-05-06 20:33 ` Wolfgang Schuster
@ 2011-05-10 17:03 ` Mojca Miklavec
0 siblings, 0 replies; 3+ messages in thread
From: Mojca Miklavec @ 2011-05-10 17:03 UTC (permalink / raw)
To: mailing list for ConTeXt users
On Fri, May 6, 2011 at 22:33, Wolfgang Schuster wrote:
>
> Am 06.05.2011 um 16:50 schrieb Mojca Miklavec:
>
>> Hello,
>>
>> This is probably a very trivial question, but I'm not sure how TeX
>> works in that respect. I'm used to use a macro
>> \def\unit#1{{\rm\ #1}
>> in constructs such as $1\unit{cm^2} \times 2\unit{cm}$. However I
>> figured out that the contents of \unit{} cannot be broken accross
>> lines, most probably because this becomes an hbox.
>>
>> Is there any simple workaround?
>
> \def\unit{\groupedcommand{\rm\ }{}}
>
> or
>
> \def\unit#1{\bgroup\rm\ #1\egroup}
>
> { and } are same as \begingroup and \endgroup in math mode and prevent and a line break of the content.
Wow! Interesting. I never realized that {} prevents breaking in math mode.
However, your solution to replace {} with \bgroup\rm \egroup works,
but only if I replace it in the formula itself. If I change only the
definition, it still won't break (maybe because I use a pair of braces
already in \unit{cm+cm}).
But at least now I know how to solve the problem. I can still use an
explicit \rm instead of using \unit macro.
Another question: how should I signal an allowed break in math mode?
\penalty0 or is there some more sensible option? (\hskip doesn't seem
to have any effect at all.)
Thanks,
Mojca
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