\AA cannot be uesed in math mode?

\AA cannot be uesed in math mode?

[fdu.xiaojf]

Hi,

I want to get a sign of angstrom in an math formula, here is my example:
%--------------------
\starttext
$\AA$
\stoptext
%--------------------
and the error message:
%--------------------
systems         : begin file d at line 1
! Please use \mathaccent for accents in math mode.
\dochar #1->\char
                  #1\relax
\dobuildtextaccent ...{\let \char \normalaccent #1
                                                  \let \char \normalchar #2}
l.2 $\AA
        $
%--------------------

I can use \AA successfully in text mode.
Is there anything wrong with my tex file?

Thanks.
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___________________________________________________________________________________

Re: \AA cannot be uesed in math mode?

[Aditya Mahajan]

On Thu, 26 Apr 2007, fdu.xiaojf@gmail.com wrote:

> Hi,
>
> I want to get a sign of angstrom in an math formula, here is my example:
> %--------------------
> \starttext
> $\AA$
> \stoptext

$\Angstrom$

Also see the units modules for proper typesetting of units.

Aditya
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___________________________________________________________________________________

Re: \AA cannot be uesed in math mode?

[fdu.xiaojf]

Aditya Mahajan wrote:
> On Thu, 26 Apr 2007, fdu.xiaojf@gmail.com wrote:
>
>   
>> Hi,
>>
>> I want to get a sign of angstrom in an math formula, here is my example:
>> %--------------------
>> \starttext
>> $\AA$
>> \stoptext
>>     
>
> $\Angstrom$
>
> Also see the units modules for proper typesetting of units.
>
> Aditya
>   
 Thanks.

 Since I use ConTeXt to typeset math formulas frequently, I want to
 know more about this. Why \AA doesn't work? 

 \AA is defined in plain TeX, and I think all plain TeX macros should
 work in ConTeX. Am I right ?

 Regrads,

 xiaojf
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
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___________________________________________________________________________________

Re: \AA cannot be uesed in math mode?

[Wolfgang Schuster]

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2007/4/26, fdu.xiaojf@gmail.com <fdu.xiaojf@gmail.com>:
>
> Aditya Mahajan wrote:
> > On Thu, 26 Apr 2007, fdu.xiaojf@gmail.com wrote:
> >
> >
> >> Hi,
> >>
> >> I want to get a sign of angstrom in an math formula, here is my
> example:
> >> %--------------------
> >> \starttext
> >> $\AA$
> >> \stoptext
> >>
> >
> > $\Angstrom$
> >
> > Also see the units modules for proper typesetting of units.
> >
> > Aditya
> >
> Thanks.
>
> Since I use ConTeXt to typeset math formulas frequently, I want to
> know more about this. Why \AA doesn't work?
>
> \AA is defined in plain TeX, and I think all plain TeX macros should
> work in ConTeX. Am I right ?
>
> Regrads,
>
> xiaojf


Hi,

you should also use the \text macro to write normal text in math mode.

\starttext
$$\text{\AA}^{\text{\AA}}$$
$$\Angstrom^{\Angstrom}$$
$$\text{\Angstrom}^{\text{\Angstrom}}$$
\stoptext

Wolfgang

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___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________