Kepler.mws Contents Introduction Expansion in eccentricity plot plot plot plot Expansion in time long expression Characterizing the error term for a given time span Introduction plot The coefficients of mu^k; Introduction Variation of N[t]; plots Variation of N[e]; plots Solving for the timespan Illustrative timespan plots A 2D Slice Calculations Images Postscript and GIF Output Optimization of expression size Introduction Determination of the optimum time span Determination of the optimum expansion order Miscellaneous 1: y as a function of e and M Miscellaneous 2: a different approximation approach read/save