%%
%% Ein Beispiel der DANTE-Edition
%% Mathematiksatz mit LaTeX
%% 3. Auflage
%% Beispiel 06-07-1 auf Seite 108.
%% Copyright (C) 2018 Herbert Voss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%% See
http://www.latex-project.org/lppl.txt for details.
%%
%% ====
% Show page(s) 1
%%
%%
\documentclass[10pt]{screxa}
\pagestyle{empty}
\setlength\textwidth{170.40707pt}
\AtBeginDocument{\setlength\parindent{0pt}}
%StartShownPreambleCommands
\usepackage{amsmath}
%StopShownPreambleCommands
\begin{document}
\[ \genfrac{}{}{0.1pt}{}{x^2+x+1}{3x-2}\quad
\genfrac{}{}{0.1pt}{3}{x^2+x+1}{3x-2} \]
\[ \genfrac{}{}{1pt}{}{x^2+x+1}{3x-2} \quad
\genfrac[]{1pt}{1}{x^2+x+1}{3x-2} \]
\[ \genfrac\{\}{0.1pt}{1}{x^2+x+1}{3x-2}\quad
\genfrac(){0pt}{}{n+1}{n} \]
\[ \genfrac{\{}{\}}{0pt}{2}{n+1}{n} \]
\end{document}
