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% Copyright 2018-2020 by Romano Giannetti
% Copyright 2015-2020 by Stefan Lindner
% Copyright 2013-2020 by Stefan Erhardt
% Copyright 2007-2020 by Massimo Redaelli
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
%
% See the files gpl-3.0_license.txt and lppl-1-3c_license.txt for more details.
\def\pgf@circ@handleSI#1{
\noexpandarg
\def\pgf@temp{}
\StrBetween{#1}{<}{>}[\pgf@circ@handleSI@unit]
\StrLen{\pgf@circ@handleSI@unit}[\pgf@circ@handleSI@unit@len]
\ifnum\pgf@circ@handleSI@unit@len=0
\pgf@circ@siunitx@resfalse
\else
\IfEndWith{#1}{>}{
\pgf@circ@siunitx@restrue
\noexpandarg
\StrBefore{#1}{<}[\pgf@circ@handleSI@val]
%\typeout{si |#1|}
}{
\pgf@circ@siunitx@resfalse
%\typeout{no si |#1|}
}
\fi
}
\def\pgf@circ@ifkeyempty#1{
\pgfextra{
\ctikzset{#1/.get=\pgf@circ@temp}
\edef\pgf@temp{}
}
\ifx\pgf@circ@temp\pgf@temp
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Math routines
\def\pgf@circ@stripdecimals#1.#2\pgf@nil{#1}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% useful commands
\ifpgfutil@format@is@latex
%% flipping text
\def\ctikzflipx#1{\scalebox{-1}[1]{#1}}
\def\ctikzflipy#1{\scalebox{1}[-1]{#1}}
\def\ctikzflipxy#1{\scalebox{-1}[-1]{#1}}
% text mode overbar
% Thanks to @egreg https://tex.stackexchange.com/a/24133/38080
\def\ctikztextnot#1{$\overline{\hbox{#1}}\m@th$}
\else\ifpgfutil@format@is@plain
% text mode overbar
% Thanks to @egreg https://tex.stackexchange.com/a/24133/38080
\def\ctikztextnot#1{$\overline{\hbox{#1}}$}
\else\ifpgfutil@format@is@context
% text mode overbar
% Thanks to @egreg https://tex.stackexchange.com/a/24133/38080
\def\ctikztextnot#1{$\overline{\hbox{#1}}$}
\fi\fi\fi
%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% switch to use fpu in reciprocal scale transformations
%%
%% this code has been contributed by Schrödinger's cat
%% https://tex.stackexchange.com/a/529159/38080
%%
%% Use the official key to use the fpu if installed, see
%% https://github.com/pgf-tikz/pgf/issues/861
%%
%% Thanks to "muzimuzhi Z" https://tex.stackexchange.com/a/547085/38080
%%
\pgfkeysifdefined{/pgf/fpu/install only/.@cmd}{%
\pgfqkeys{/pgf}{use fpu reciprocal/.code={\pgfkeys{/pgf/fpu/install only={reciprocal}}}}%
}{%
\pgfqkeys{/pgf}{use fpu reciprocal/.code={%
\def\pgfmathreciprocal@##1{%
\begingroup
\pgfkeys{/pgf/fpu=true,/pgf/fpu/output format=fixed}%
\pgfmathparse{1/##1}%
\pgfmath@smuggleone\pgfmathresult
\endgroup
}}}%
}
\endinput
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