From: Hans Hagen <pragma@wxs.nl>
Subject: Re: Missing \dddot and \ddddot
Date: Thu, 14 Sep 2006 20:53:43 +0200 [thread overview]
Message-ID: <4509A537.8040402@wxs.nl> (raw)
In-Reply-To: <Pine.WNT.4.63.0609140946560.3060@nqvgln>
Aditya Mahajan wrote:
> On Thu, 14 Sep 2006, WN wrote:
>
>
>> Hello,
>> I need to use \dddot and \ddddot in one of my documents, does anyone
>> know how to
>> define these math symbols.
>>
>
> The trouble is that most fonts do not contain these accents.
> amsmath.sty gets over this definition by faking these symbols. It is
> easy to port these definitions to context.
>
> amsmath.sty definition
>
> \newcommand{\dddot}[1]{%
> {\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
> \hbox{\normalfont ...}\vss}}}}
> \newcommand{\ddddot}[1]{%
> {\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
> \hbox{\normalfont....}\vss}}}}
>
>
> Converting to context
>
> %--------------------%<------------------------------------
> \unprotect
>
> % The true copy of amsmath definitions
> \def\amsdddot {\limits^{\vbox to -1.4ex{\kern-2ex\hbox{\the\textfont\z@ ...}\vss}}}
> \def\amsddddot{\limits^{\vbox to -1.4ex{\kern-2ex\hbox{\the\textfont\z@....}\vss}}}
>
> % I do not understand why you need to give negative height
>
\setbox\scratchbox{..} \ht\scratchbox0pt \dp\scratchbox-2pt
> % This looks better.
> \def\amsdddot {\limits^{\vbox{\kern-2ex\hbox{\the\textfont\z@ ...}\vss}}}
> \def\amsddddot{\limits^{\vbox{\kern-2ex\hbox{\the\textfont\z@....}\vss}}}
>
> \def\dddot #1{{\mathop{#1}\amsdddot }}
> \def\ddddot#1{{\mathop{#1}\amsddddot}}
>
> \protect
>
> \starttext
>
> $\dddot{a}_{\dddot{b}}$
>
> $\ddddot{a}_{\ddddot{b}}$
> \stoptext
> %------------------------%<-------------------------------------
>
> Aditya
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context
>
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next prev parent reply other threads:[~2006-09-14 18:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-14 12:07 WN
2006-09-14 13:51 ` Aditya Mahajan
2006-09-14 15:30 ` WN
2006-09-14 18:53 ` Hans Hagen [this message]
2006-09-15 1:03 ` Aditya Mahajan
2006-09-15 7:31 ` Hans Hagen
2006-09-15 18:14 ` Aditya Mahajan
2006-09-16 2:28 ` Aditya Mahajan
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