On Sat, 3 Feb 2007, Taco Hoekwater wrote:
>
>
> It is cleaner when renamed a little:
>
> Taco Hoekwater wrote:
>>
>> [EMAIL PROTECTED]
> \def\preparebinrel#1%
>> {\begingroup
>> \setbox0=\hbox
>> {\thinmuskip 0mu
>> \medmuskip -1mu
>> \thickmuskip -1mu
>> \setbox2=\hbox{$#1\mathsurround0pt$}%
>> \kern -wd2
>> ${}#1{}\mathsurround0pt$}%
>> [EMAIL PROTECTED]
>> {\endgroup
>> \let\noexpand\binrel@@
> \let\noexpand\currentbinrel
>> \ifdim\wd0<0pt
>> \mathbin
>> \else \ifdim\wd0>\z@
>> \mathrel
>> \else
>> \relax
>> \fi\fi }%
>> [EMAIL PROTECTED] }
>
> And:
>
> \unexpanded\def\overset#1#2%
> {\preparebinrel{#2}%
> [EMAIL PROTECTED]
>
There was another request (although misguided) for overset in the
mailing list today. I think that the following macros can go into the
core: (Taco's version, with a typo corrected).
%D \macros{overset, underset}
%D
%D The macros \type{\overset} and \type{\underset} are provided by
%D \AMS\ packages in \LATEX. These macro allows you to place a symbol
%D above or below another symbol, irrespective of whether the other
%D symbol is a relation or something else, and without influencing the
%D spacing. For most cases there is a better way to do such things
%D (declaring a math command with limop option, or using accents), but
%D occasionally these macros can be useful, for example
%D
%D \startbuffer
%D \startformula
%D \overset{*}{X} \underset{*}{X}
%D \stopformula
%D \stopbuffer
%D \typebuffer \getbuffer
%D
%D Use these macros sparingly. Remember, \TEX\ was designed for
%D mathematics, so there is usually a proper method for typesetting
%D common math notation.
%D These macros are a clearer version of [EMAIL PROTECTED] and
%D \type{\binrel@@} macros in \AMSTEX\ packages.
\def\preparebinrel#1%
{\begingroup
\setbox0=\hbox
{\thinmuskip 0mu
\medmuskip -1mu
\thickmuskip -1mu
\setbox2=\hbox{$#1\mathsurround0pt$}%
\kern-\wd2
${}#1{}\mathsurround0pt$}%
[EMAIL PROTECTED]
{\endgroup
\let\noexpand\currentbinrel
\ifdim\wd0<0pt
\mathbin
\else \ifdim\wd0>\z@
\mathrel
\else
\relax
\fi\fi}%
[EMAIL PROTECTED]
\unexpanded\def\overset#1#2%
{\preparebinrel{#2}%
[EMAIL PROTECTED]
\unexpanded\def\underset#1#2%
{\preparebinrel{#2}%
[EMAIL PROTECTED]
Aditya
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