%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 8-7-1 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}
\normalsize                %% Style:
\[ b                       %% D
    ^0                     %% S
   +                       %% D
   \frac{(k + p)           %% T
          _{j'}            %% S'
         % \displaystyle
         \pm               %% T  [D]
         \frac{(f + q)     %% S  [T]
                ^{(pk)     %% SS [S]
                   ^y      %% SS
                   _{j'}}} %% SS'
              {(h + y)}}   %% S' [T']
        {(l + q)           %% T'
          ^{(pk)}}         %% S'
\]
\end{document}