<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">% fnspe 1.2a
% This material is subject to the LaTeX Project Public License.
% See https://www.latex-project.org/lppl/ for the details of that license.
%
% Useful commands for FNSPE students 
%
% Created by Michal Zeman
% Updated on September 20, 2017
% Uploaded on September 20, 2017

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{fnspe}[2017/09/20 Package for FNSPE CTU in Prague made by Michal Zeman]

\RequirePackage{xstring}
\RequirePackage{bm}

\RequirePackage{amsmath}
\RequirePackage{amsfonts}
\RequirePackage{mathrsfs}
\RequirePackage{amsthm}
\RequirePackage{amssymb}
\RequirePackage{xcolor}
\RequirePackage{listings}
\RequirePackage{physics}
\RequirePackage{tikz}         % For arrow and dots in \xvec
\RequirePackage{substr}
\RequirePackage{mathtools}

\newif\if@isointerval\@isointervalfalse
\DeclareOption{isointerval}{
	\@isointervaltrue
}

\newif\if@isoointerval\@isoointervalfalse
\DeclareOption{isoointerval}{
	\@isoointervaltrue
}

\newif\if@fnspeinterval\@fnspeintervalfalse
\DeclareOption{fnspeinterval}{
	\@fnspeintervaltrue
}

\newif\if@isotensor\@isotensorfalse
\DeclareOption{isotensor}{
	\@isotensortrue
}

\newif\if@undertensor\@undertensorfalse
\DeclareOption{undertensor}{
	\@undertensortrue
}

\newif\if@arrowtensor\@arrowtensorfalse
\DeclareOption{arrowtensor}{
	\@arrowtensortrue
}

\newif\if@oldcomplex\@oldcomplexfalse
\DeclareOption{oldcomplex}{
	\@oldcomplextrue
}

\newif\if@isocomplex\@isocomplexfalse
\DeclareOption{isocomplex}{
	\@isocomplextrue
}

\newif\if@deftext\@deftextfalse
\DeclareOption{deftext}{
	\@deftexttrue
}

\newif\if@defcolon\@defcolonfalse
\DeclareOption{defcolon}{
	\@defcolontrue
}

\ProcessOptions\relax

\newlength\xvec@height%
\newlength\xvec@depth%
\newlength\xvec@width%
\newcommand{\xvec}[1]{%
	\ifmmode%
	\settoheight{\xvec@height}{$#1$}%
	\settodepth{\xvec@depth}{$#1$}%
	\settowidth{\xvec@width}{$#1$}%
	\else%
	\settoheight{\xvec@height}{#1}%
	\settodepth{\xvec@depth}{#1}%
	\settowidth{\xvec@width}{#1}%
	\fi%
	\raisebox{.2ex}{\raisebox{\xvec@height}{\rlap{%
				\kern.05em%  (Because left edge of drawing is at .05em)
				\begin{tikzpicture}[scale=1]
				\pgfsetroundcap
				\draw (.05em,.01)--(\xvec@width-.05em,0.01);
				\draw (\xvec@width-.05em,0.01)--(\xvec@width-.2em, .155em);
				\draw (\xvec@width-.05em,0.01)--(\xvec@width-.2em,-.125em);
				%
				\end{tikzpicture}%
	}}}%
	#1%
}

\lstset
{
	language=[LaTeX]TeX,
	breaklines=true,
	basicstyle=\tt\scriptsize,
	morekeywords = [28]{ci,oi,lci,rci,rest,dif, hlf, degree, hem, htem, oover, realn, inte, ratin, compn, natun, impem, rot, dive, grad, lapl, varun, unit, expv, norm, abs, pder, tder,mat,curl,laplacian, divisionsymbol,
	floor, ceil, df, allsetzero, allset, cclass, ccinf, ccof},
	keywordstyle=\color{blue},
	identifierstyle=\color{magenta},
}

%\catcode`_=\active

%\newcommand_[1]{\IfSubStr{#1}{!}{\sb{\mathrm{\StrBehind{#1}{!}}}}{\sb{#1}} }

\mathcode`\_=\string"8000
\catcode`\_=12

\begingroup
\catcode`\_=\active
\gdef_#1{\IfCharInString{!}{#1}{\sb{\mathrm{\StrBehind{#1}{!}}}}{\sb{#1}} }
\endgroup
\mathcode`\_=\string"8000
\catcode`\_=12

%\let\stdvec\vec
\if@arrowtensor
\renewcommand{\vec}[1]{\xvec{#1}}
\else
\renewcommand{\vec}[1]{\ensuremath{\if@undertensor \underline{#1} \else \bm{\mathrm{\MakeLowercase{#1}}} \fi}}
\fi

\newcommand{\mat}[1]{\ensuremath{\if@undertensor \underline{\underline{#1}} \else \if@arrowtensor \overset{\leftrightarrow}{#1} \else \bm{\mathrm{\MakeUppercase{#1}}} \fi \fi}}

%\newcommand{\pder}[3][]{\ensuremath{\frac{\partial^#1 #2}{\partial #3^#1}}} \pdv

\newcommand*{\tder}[3][]{\dv[#1]{#2}{#3}} %\dv

\newcommand{\oi}[2]{\ensuremath{\if@fnspeinterval \left( #1 , #2 \right) \else \if@isoointerval \left( #1 , #2 \right) \else \left] #1 , #2 \right[ \fi  \fi}}

\newcommand{\ci}[2]{\ensuremath{\if@fnspeinterval \left&lt; #1 , #2 \right&gt; \else \left[ #1 , #2 \right] \fi}}

\newcommand{\rci}[2]{\ensuremath{\if@fnspeinterval \left( #1 , #2 \right&gt; \else \if@isoointerval  \left( #1 , #2 \right] \else \left] #1 , #2 \right] \fi  \fi}}

\newcommand{\lci}[2]{\ensuremath{\if@fnspeinterval \left&lt; #1 , #2 \right) \else \if@isoointerval \left[ #1 , #2 \right) \else \left[ #1 , #2 \right[ \fi  \fi}}

%\newcommand{\rest}[2]{\ensuremath{\left.#1\right|_{#2}}}

\newcommand{\dif}[1]{\mathrm d #1}

\newcommand{\hlf}{\frac{1}{2}}

\newcommand{\degree}{\ensuremath{{}^{\circ}}}
%\newcommand{\deg}{\degree}

\newcommand{\hem}[1][1]{\hspace{#1em}}
\newcommand{\htwoem}{\hspace{2em}}
\newcommand{\htem}{\htwoem}

\newcommand{\oover}[1]{\ensuremath{\frac{1}{#1}}}

\newcommand{\realn}{\ensuremath{\mathbb{R}}}
\newcommand{\compn}{\ensuremath{\mathbb{C}}}
\newcommand{\inte}{\ensuremath{\mathbb{Z}}}
\newcommand{\ratin}{\ensuremath{\mathbb{Q}}}
\newcommand{\natun}{\ensuremath{\mathbb{N}}}
\newcommand{\nnzero}{\ensuremath{\mathbb{N}_0}}

\newcommand{\impem}{\hem \Rightarrow \hem}

\newcommand{\rot}{\curl}
%\newcommand{\dive}{\ensuremath{\nabla \cdot}}
%\newcommand{\grad}{\ensuremath{\nabla}}
\newcommand{\lapl}{\Delta} %\laplacian

\newcommand{\varun}[2]{\ensuremath{\left[#1\right]=\mathrm{#2}}}
\newcommand{\unit}[1]{\;\mathrm{#1}}
\newcommand{\expv}[1]{\left&lt;#1\right&gt;}

%\newcommand{\norm}[1]{\ensuremath{\left|\left|#1\right|\right|}}
%\newcommand{\abs}[1]{\ensuremath{\left|#1\right|}}

\if@oldcomplex
\renewcommand{\Re}{\ensuremath{\mathfrak{Re}}}
\else
\renewcommand{\Re}{\ensuremath{\mathrm{Re}\;}}
\fi

\if@oldcomplex
\renewcommand{\Im}{\ensuremath{\mathfrak{Im}}}
\else
\renewcommand{\Im}{\ensuremath{\mathrm{Im}\;}}
\fi

%\newcommand{\maxv}[1]{\vec{\mathcal{#1}}}
%\newcommand{\maxs}[1]{\mathcal{#1}}

\DeclarePairedDelimiter{\ceil}{\lceil}{\rceil}
\DeclarePairedDelimiter{\floor}{\lfloor}{\rfloor}

\if@deftext
\newcommand{\df}{\stackrel{\mathclap{\normalfont{\mbox{\tiny def.}}}}{=}}
\else
\newcommand{\df}{\mbox{:=}}
\fi

\newcommand{\allset}[1]{\{1,2,\ldots,#1\}}
\newcommand{\allsetzero}[1]{\{0,1,\ldots,#1\}}

\newcommand{\cclass}{\mathscr{C}}
\newcommand{\ccof}[1]{\cclass^{#1}}
\newcommand{\ccinf}{\ccof{\infty}}</pre></body></html>