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% "a4" document style option.
% John Pavel, December 1986
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% Redefines the \textheight and \topmargin for A4 paper, as opposed to US paper.
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% Adjusting \textheight will adjust position of the bottom of the page.
% Must preserve "(\textheight - \topskip) divides \baselineskip".
% \topskip always appears to be 10pt.
% So only add/subtract multiples of \baselineskip if you want shorter pages.
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% \textwidth is not altered because A4 is narrower than US paper.
 
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\topmargin 0 pt     %    Nominal distance from top of paper to top of page
\ifcase \@ptsize
    % mods for 10 pt (\baselineskip=12pt)
    \textheight 646 pt  % Height of text (including footnotes and figures)
\or % mods for 11 pt (\baselineskip=13.6pt)
    \textheight 649.2 pt    % Height of text (including footnotes and figures)
\or % mods for 12 pt  (\baselineskip=15pt)
    \textheight 655 pt    % Height of text (including footnotes and figures)
\fi