add better faktor package

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Maximilian Keßler 2021-09-08 19:49:34 +02:00
parent 831ff1f95c
commit 7a6f614c8a

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mkessler-faktor.sty Normal file
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\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{mkessler-faktor}[2021-09-06 - Faktor package]
%%%%%%%%%%%%%%%%%%
% Extension the faktor package for
% - cofaktor command that provides A \ B notation
% - scaling the / in the middle
% - fine positioning of enumerator / denominator
% Essentially taken from
% https://tex.stackexchange.com/questions/27591/extending-the-faktor-package
% and added a mirrored \cofaktor command
%Dependencies
\RequirePackage{xparse}
\RequirePackage{amssymb} % provides \diagup and \diagdown
\RequirePackage{ifthen} % ifthenelse syntax
\RequirePackage{mathtools}
\DeclareDocumentCommand{\faktor}{s m O{0.5} m O{-0.5}}{% \newfaktor[*]{#2}[#3]{#4}[#5] -> #2/#4
\setbox0=\hbox{\ensuremath{#2}}% Store numerator
\setbox1=\hbox{\ensuremath{\diagup}}% Store slash /
\setbox2=\hbox{\ensuremath{#4}}% Store denominator
\raisebox{#3\ht1}{\usebox0}% Numerator
\mkern-5mu\ifthenelse{\equal{#1}{\BooleanTrue}}% Slash /
{\diagup}% regular \faktor slash
{\rotatebox{-44}{\rule[#5\ht2]{0.4pt}{-#5\ht2+#3\ht0+\ht0}}}% tilted rule as a slash
\mkern-4mu%
\raisebox{#5\ht2}{\usebox2}% Denominator
}
\DeclareDocumentCommand{\cofaktor}{s m O{-0.5} m O{0.5}}{% \newfaktor[*]{#2}[#3]{#4}[#5] -> #2/#4
\setbox0=\hbox{\ensuremath{#2}}% Store numerator
\setbox1=\hbox{\ensuremath{\diagdown}}% Store slash /
\setbox2=\hbox{\ensuremath{#4}}% Store denominator
\raisebox{#3\ht1}{\usebox0}% Numerator
\mkern-5mu\ifthenelse{\equal{#1}{\BooleanTrue}}% Slash /
{\diagdown}% regular \faktor slash
{\rotatebox{44}{\rule[-#5\ht2]{0.4pt}{#5\ht2-#3\ht0+\ht0}}}% tilted rule as a slash
\mkern-4mu%
\raisebox{#5\ht2}{\usebox2}% Denominator
}