latex-packages-build/math/mkessler-faktor.sty

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% Copyright © 2021 Maximilian Keßler
%
% Permission is hereby granted, free of charge, to any person obtaining a copy
% of this software and associated documentation files (the “Software”), to deal
% in the Software without restriction, including without limitation the rights
% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
% copies of the Software, and to permit persons to whom the Software is
% furnished to do so, subject to the following conditions:
% The above copyright notice and this permission notice shall be included in all
% copies or substantial portions of the Software.
%
% THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
% SOFTWARE.
%
% This package has been generated by PyTeX, available at
% https://github.com/kesslermaximilian/PyTeX
% and built from source file 'faktor.pysty'.
% It is STRONGLY DISCOURAGED to edit this source file directly, since local
% changes will not be versioned by Git and overwritten by the next build. Always
% edit the source file and build the package again.
%
% Build details:
% PyTeX version: v1.0.0-18 (commit 126d420)
% Source code version: v2.4.0-beta (commit 0aefd5f)
%
% This LaTeX package is free software and distributed under the MIT License. You
% may use it freely for your purposes. The latest version of the package can be
% obtained via GitHub under
% https://github.com/kesslermaximilian/LatexPackages
% For further information see the url above.
% Reportings of bugs, suggestions and improvements are welcome, see the README
% at the Git repository for further information.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{mkessler-faktor}[2021/10/29 - Faktor package that also handles cofaktors]
% Extension the faktor package for
% - cofaktor command that provides A \ B notation
% - scaling the / in the middle
% - fine positioning of enumerator / denominator
% This is essentially taken from the stackexchange question found at
% https://tex.stackexchange.com/questions/27591/extending-the-faktor-package
% and answered by 'Werner' (https://tex.stackexchange.com/users/5764/werner)
%
% This package only packages the corresponding answer and provides an analoguous way of a \cofactor command
%Dependencies
\RequirePackage{xparse}
\RequirePackage{amssymb} % provides \diagup and \diagdown
\RequirePackage{ifthen} % ifthenelse syntax
\RequirePackage{mathtools}
\DeclareDocumentCommand{\faktor}{s O{0.5} m O{-0.5} m}{% \newfaktor[*][#2]{#3}[#4]{#5} -> #3/#5
\setbox0=\hbox{\ensuremath{#3}}% Store numerator
\setbox1=\hbox{\ensuremath{\diagup}}% Store slash /
\setbox2=\hbox{\ensuremath{#5}}% Store denominator
\raisebox{#2\ht1}{\usebox0}% Numerator
\mkern-5mu\ifthenelse{\equal{#1}{\BooleanTrue}}% Slash /
{\diagup}% regular \faktor slash
{\rotatebox{-44}{\rule[#4\ht2]{0.4pt}{-#4\ht2+#2\ht0+\ht0}}}% tilted rule as a slash
\mkern-4mu%
\raisebox{#4\ht2}{\usebox2}% Denominator
}
\DeclareDocumentCommand{\cofaktor}{s m O{-0.5} m O{0.5}}{% \newfaktor[*][#2]{#3}[#4]{#5} -> #2\#4
\setbox0=\hbox{\ensuremath{#3}}% Store numerator
\setbox1=\hbox{\ensuremath{\diagdown}}% Store slash /
\setbox2=\hbox{\ensuremath{#5}}% Store denominator
\raisebox{#2\ht1}{\usebox0}% Numerator
\mkern-5mu\ifthenelse{\equal{#1}{\BooleanTrue}}% Slash /
{\diagdown}% regular \faktor slash
{\rotatebox{44}{\rule[-#4\ht2]{0.4pt}{#4\ht2-#2\ht0+\ht0}}}% tilted rule as a slash
\mkern-4mu%
\raisebox{#4\ht2}{\usebox2}% Denominator
}