DIRECTORY local Contains the files: formal.group Gives terms of the formal group up to and including degree 7. local.coordinates Gives the first few terms for the expansions for the local coordinates as power series in the local parameters s1,s2. exp Gives the formal exponential power series up to and including degree 7. log Gives the formal logarithmic power series up to and including degree 7. ell.curve.chab Gives the power series of Section 2 of the article "Finding Rational Points on Bielliptic Genus 2 Curves", E.V. Flynn and J.L. Wetherell. ex2and3.ps Gives the postscript file for the details of the working for Examples 3.2 and 3.3 in the above article.