%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 8-7-2 on page 503.
%%
%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
%%    Johannes Braams, David Carlisle, and Chris Rowley
%%
%% 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.
%%

\documentclass{ttctexa}
\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}