Re: [NTG-context] The \frac macro.
Is there another macro in Context called \frac and if so how is it called? I use (e)grep in this situations, it's more texnician. luigi ___ 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/ wiki : http://contextgarden.net ___
[NTG-context] The \frac macro.
Knuth defines a macro for simple fractions such as 3/4 etc. and calls
it \frac:
\def\frac#1/#2{\leavevmode
\kern.1em \raise .5ex \hbox{\the\scriptfont0 #1}%
\kern-.1em $/$%
\kern -.15em \lower .25ex \hbox{\the\scriptfont0 #2}}%
The call is e.g., \frac 3/4.
This works fine in Context. However if I undefine the Knuth macro and
still use the same \frac call I don't get an error message but the
results are quite different. I get both a stroke and a bar between
the 3 and the 4.
Is there another macro in Context called \frac and if so how is it
called?
--
John Culleton
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Re: [NTG-context] The \frac macro.
On 4/22/07, John R. Culleton [EMAIL PROTECTED] wrote:
Knuth defines a macro for simple fractions such as 3/4 etc. and calls
it \frac:
\def\frac#1/#2{\leavevmode
\kern.1em \raise .5ex \hbox{\the\scriptfont0 #1}%
\kern-.1em $/$%
\kern -.15em \lower .25ex \hbox{\the\scriptfont0 #2}}%
The call is e.g., \frac 3/4.
This works fine in Context. However if I undefine the Knuth macro and
still use the same \frac call I don't get an error message but the
results are quite different. I get both a stroke and a bar between
the 3 and the 4.
Because what you type is then equal to \frac{3}{/}4, similar to the
standard command in LaTeX. \frac already exists and accepts two
arguments.
Mojca
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Re: [NTG-context] The \frac macro.
On Sun, 22 Apr 2007, John R. Culleton wrote:
Knuth defines a macro for simple fractions such as 3/4 etc. and calls
it \frac:
\def\frac#1/#2{\leavevmode
\kern.1em \raise .5ex \hbox{\the\scriptfont0 #1}%
\kern-.1em $/$%
\kern -.15em \lower .25ex \hbox{\the\scriptfont0 #2}}%
The call is e.g., \frac 3/4.
This works fine in Context. However if I undefine the Knuth macro and
still use the same \frac call I don't get an error message but the
results are quite different. I get both a stroke and a bar between
the 3 and the 4.
Is there another macro in Context called \frac and if so how is it
called?
\frac {a}{b} is equivalent to plain tex's {a \over b}.
There is also a command similar to what you want to define in ConTeXt.
It is called vulgar fraction. From core-mis.tex
%D \starttabulate
%D \HL
%D \NC \bf method \NC \bf visualization \NC\NR
%D \HL
%D \NC 0 \NC \chardef\vulgarfractionmethod0\vulgarfraction{1}{2}
\NC\NR
%D \NC 1 \NC \chardef\vulgarfractionmethod1\vulgarfraction{1}{2}
\NC\NR
%D \NC 2 \NC \chardef\vulgarfractionmethod2\vulgarfraction{1}{2}
\NC\NR
%D \NC 3 \NC \chardef\vulgarfractionmethod3\vulgarfraction{1}{2}
\NC\NR
%D \HL
%D \stoptabulate
However, if you plan to use such fractions in serious work, do read
the introduction of xfrac
(ftp://tug.ctan.org/pub/tex-archive/macros/latex/exptl/xfrac/doc/xfrac.pdf)
I think that the vigrule vs solidus argument also applies to ConTeXt's
definition.
Aditya
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