86 lines
3.9 KiB
TeX
86 lines
3.9 KiB
TeX
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% Copyright © 2021 Maximilian Keßler
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%
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% Permission is hereby granted, free of charge, to any person obtaining a copy
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% of this software and associated documentation files (the “Software”), to deal
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% in the Software without restriction, including without limitation the rights
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% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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% copies of the Software, and to permit persons to whom the Software is
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% furnished to do so, subject to the following conditions:
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% The above copyright notice and this permission notice shall be included in all
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% copies or substantial portions of the Software.
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%
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% THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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% SOFTWARE.
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%
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% This package has been generated by PyTeX, available at
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% https://github.com/kesslermaximilian/PyTeX
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% and built from source file 'faktor.pysty'.
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% It is STRONGLY DISCOURAGED to edit this source file directly, since local
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% changes will not be versioned by Git and overwritten by the next build. Always
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% edit the source file and build the package again.
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%
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% Build details:
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% PyTeX version: v1.2.0 (commit 126d420)
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% Source code version: v2.4.0-beta (commit 0aefd5f)
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%
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% This LaTeX package is free software and distributed under the MIT License. You
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% may use it freely for your purposes. The latest version of the package can be
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% obtained via GitHub under
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% https://github.com/kesslermaximilian/LatexPackages
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% For further information see the url above.
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% Reportings of bugs, suggestions and improvements are welcome, see the README
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% at the Git repository for further information.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\NeedsTeXFormat{LaTeX2e}
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\ProvidesPackage{mkessler-faktor}[2021/10/29 - Faktor package that also handles cofaktors]
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% Extension the faktor package for
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% - cofaktor command that provides A \ B notation
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% - scaling the / in the middle
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% - fine positioning of enumerator / denominator
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% This is essentially taken from the stackexchange question found at
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% https://tex.stackexchange.com/questions/27591/extending-the-faktor-package
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% and answered by 'Werner' (https://tex.stackexchange.com/users/5764/werner)
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%
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% This package only packages the corresponding answer and provides an analoguous way of a \cofactor command
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%Dependencies
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\RequirePackage{xparse}
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\RequirePackage{amssymb} % provides \diagup and \diagdown
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\RequirePackage{ifthen} % ifthenelse syntax
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\RequirePackage{mathtools}
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\DeclareDocumentCommand{\faktor}{s O{0.5} m O{-0.5} m}{% \newfaktor[*][#2]{#3}[#4]{#5} -> #3/#5
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\setbox0=\hbox{\ensuremath{#3}}% Store numerator
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\setbox1=\hbox{\ensuremath{\diagup}}% Store slash /
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\setbox2=\hbox{\ensuremath{#5}}% Store denominator
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\raisebox{#2\ht1}{\usebox0}% Numerator
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\mkern-5mu\ifthenelse{\equal{#1}{\BooleanTrue}}% Slash /
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{\diagup}% regular \faktor slash
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{\rotatebox{-44}{\rule[#4\ht2]{0.4pt}{-#4\ht2+#2\ht0+\ht0}}}% tilted rule as a slash
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\mkern-4mu%
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\raisebox{#4\ht2}{\usebox2}% Denominator
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}
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\DeclareDocumentCommand{\cofaktor}{s m O{-0.5} m O{0.5}}{% \newfaktor[*][#2]{#3}[#4]{#5} -> #2\#4
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\setbox0=\hbox{\ensuremath{#3}}% Store numerator
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\setbox1=\hbox{\ensuremath{\diagdown}}% Store slash /
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\setbox2=\hbox{\ensuremath{#5}}% Store denominator
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\raisebox{#2\ht1}{\usebox0}% Numerator
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\mkern-5mu\ifthenelse{\equal{#1}{\BooleanTrue}}% Slash /
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{\diagdown}% regular \faktor slash
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{\rotatebox{44}{\rule[-#4\ht2]{0.4pt}{#4\ht2-#2\ht0+\ht0}}}% tilted rule as a slash
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\mkern-4mu%
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\raisebox{#4\ht2}{\usebox2}% Denominator
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}
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