%%
%% The LaTeX Companion, 3ed
%%
%% Example 11-7-1 on page II-196 in "Controlling the automatic sizing and spacing".
%%
%% 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{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{159.0pt}

%StartShownPreambleCommands

%StopShownPreambleCommands

\begin{document}
\normalsize                %% Style:
\[ b                       %% D
    ^0                     %% S
   +                       %% D
   \frac{(k + p)           %% T
          _{j'}            %% S'
    % \displaystyle  %% <-- possible modification
         \pm               %% T      [D]  |
         \frac{(f + q)     %% S      [T]  |
                ^{(pk)     %% SS     [S]  V
                   ^y      %% SS
                   _{j'}}} %% SS'
              {(h + y)}}   %% S'     [T']
        {(l + q)           %% T'
          ^{(pk)}}         %% S'
\]
\end{document}
