[cstex] Symboly horního a dolního integrálu
petr zemánek
petr.zemanek at gmail.com
Wed Apr 6 11:45:33 CEST 2011
Dobrý den,
potřebuji vytvořit příkaz pro symboly dolního a horní integrálu.
Našel
jsem tento návod
====================================================
\documentclass{report}
\usepackage{localloc}
% Ignore whitespace and make @ a letter
%
\endlinechar=-1
\catcode`\ =9
\makeatletter
% Saves the current math style in \everymath, then expands its
argument. The result is that
% the math style is "saved", e.g., for use inside box commands.
%
% Ideally, this should append rather than assign.
%
\newcommand{\mathstyle}[1]{
\mathchoice{\everymath={\displaystyle} #1}
{#1}
{\everymath={\scriptstyle} #1}
{\everymath={\scriptscriptstyle} #1}
}
% upper integral symbol.
%
% Everything happens inside a group, so assignments and allocations
are local.
%
\newcommand{\uint}{{
\mathstyle{
\lnewbox\intbox
\lnewdimen\intwd
% obtain the width of \int. Since the typical integral symbol looks
% roughly like a 45 degree line, we'll need to a line about half this
width.
%
\setbox\intbox=\hbox{\m at th$\int$}
\intwd=\wd\intbox
\divide \intwd by 2\relax
% Setting \baselineskip to 1pt gives us 1pt of space between the line
and \int.
%
% We need to use \moveright, to get the line in the right place
(hence
the
% \hrule must be inside a \vbox).
%
\vbox{
\baselineskip=1pt
\moveright \intwd \vbox{\hrule width \intwd}
\hbox{\m at th$\int$}}
}}}
% lower integral symbol.
%
\newcommand{\lint}{{
\mathstyle{
\lnewbox\intbox
\lnewdimen\intwd
\setbox\intbox=\hbox{\m at th$\int$}
\intwd=\wd\intbox
\divide \intwd by 2\relax
% This is a bit simpler, since we don't need \moveright.
\vtop{
\hbox{\m at th$\int$}
\vskip 1pt
\hrule width \intwd}
}}}
% Restore whitespace and @
%
\catcode`\ =10
\endlinechar=`^^M
\makeatother
\begin{document}
$\int_a^b f$ $\uint_a^b f$ $\lint_a^b f$ $\int_a^b f$
$$\int_a^b f \uint_a^b f \lint_a^b f \int_a^b f$$
\end{document}
==========================================================
jenže ten výstup není příliš pohledný. Meze, u kterých není pruh,
jsou
příliš daleko od symbolu integrálu, a naopak u druhé meze je ten pruh
příliš blízko symbolu meze. Můžete mi, prosím, pomoci s vytvořením
kvalitnìjšího výstupu.
S pozdravem Petr Zemánek.
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