\magnification=\magstep3 \hsize=19truecm \vsize=19truecm \nopagenumbers \parindent=0mm \font\eins=cmb10 scaled \magstep 3 \font\zwei=cmr12 \font\mini=cmr7 \def\frac#1#2{{{#1} \over {#2}}} \hbox{} \vfill \centerline{\eins Main Result} \bigskip\bigskip \centerline{$\displaystyle S = {\sum\limits_{n=0}^{\infty} \frac{a(n)}{b(n)} \, \frac{p(0) \cdots p(n)}{q(0) \cdots q(n)}}$} \bigskip with $a(n)$, $b(n)$, $p(n)$, $q(n)$ small integers ${} = O(n^c)$ \bigskip can be computed to $N$ digits in time \medskip \centerline{$O \left( {M(N) \, {(\log N)}^2} \right) = O \left( N \, {(\log N)}^3 \, \log \log N \right)$.} \vfill \hbox{} \eject \end