%% %% The LaTeX Companion, 3ed %% %% Example 11-7-14 on page II-202 in "Ghostbusters\texttrademark ". %% %% Copyright (C) 2022 Frank Mittelbach %% %% It may be distributed and/or modified under the conditions %% of the LaTeX Project Public License, either version 1.3c %% of this license or (at your option) any later version. %% %% See https://www.latex-project.org/lppl.txt for details. %% \documentclass{tlc3examargin} \pagestyle{empty} \setcounter{page}{6} \setlength\textwidth{147.0pt} %StartShownPreambleCommands \usepackage{mathtools} %StopShownPreambleCommands \begin{document} \[ f_p (x) = \begin{cases} \frac{1}{p} & x = p \\[-4pt] \frac{\frac{\xmathstrut{.1} (1 - x)^{\frac{1}{2}}} {\xmathstrut{.25} x - \sin (x - p)} } {\xmathstrut{.3} \sqrt{1 - p} \, \cos (x - p)} & x \neq p \end{cases} \] \end{document}