1\documentclass{beamer} 2 3\usepackage{tikz} 4\usepackage{pgflibraryshapes} 5\usetikzlibrary{backgrounds} 6\usetikzlibrary{arrows} 7\newenvironment{changemargin}[2]{% 8 \begin{list}{}{% 9 \setlength{\topsep}{0pt}% 10 \setlength{\leftmargin}{#1}% 11 \setlength{\rightmargin}{#2}% 12 \setlength{\listparindent}{\parindent}% 13 \setlength{\itemindent}{\parindent}% 14 \setlength{\parsep}{\parskip}% 15 }% 16 \item[]}{\end{list}} 17 18\begin{document} 19\begin{frame}{} 20\begin{changemargin}{-1cm}{0cm} 21\begin{center} 22\begin{tikzpicture}[scale = 10.00,font=\fontsize{8}{8}\selectfont] 23\draw (0.5,0.9) node [rectangle, draw, align=center, inner sep=1ex] {TS: pseudo}; 24\draw (0.5,0.83) node [rectangle, draw, align=center, inner sep=1ex] {SNES: newtonls}; 25\draw (0.5,0.76) node [rectangle, draw, align=center, inner sep=1ex] {KSP: gmres}; 26\draw (0.5,0.69) node [rectangle, draw, align=center, inner sep=1ex] {PC: ilu (16)}; 27\end{tikzpicture} 28\end{center} 29\end{changemargin} 30\end{frame} 31\end{document} 32