%%
%% The LaTeX Companion, 3ed
%%
%% Example 11-7-2 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{207.0pt}

%StartShownPreambleCommands

%StopShownPreambleCommands

\begin{document}
\[ b                     %% D
   ^0                   %% S
  +                     %% D
  \frac{(k + p)         %% T
        _{j'}           %% S'
        \displaystyle
        \pm             %% D
        \frac{(f + q)   %% T
              ^{(pk)    %% S
                ^y      %% SS
                _{j'}}} %% SS'
             {(h + y)}} %% T'
       {(l + q)         %% T'
        ^{(pk)}}        %% S'
\]
\end{document}