> The book "Calendrical Calculations by Nachum Dershowitz and
> Edward M. Reingold says (note on page 51) that the original
> Gauss algorithm gave the first error for the year 4200 and cites
> "Puzzles and Paradoxes" by T. H. O'Beirne. I've seen similar
> statements about year 4200 and later elsewhere.
Hmmm, so it is all down to T. H. O'Beirne? A quick check of
year 4200 using both the Gauss and Oudin methods gives us:
Gauss' method: 4200-04-20
Oudin's method: 4200-04-20
> However, if an algorithm returns correct values for all years, it
> isn't Gauss' original algorithm, which we know to be flawed. :-)
The algorithm is fully described in "Haandbog I Kronologi"
by Prof. J.Fr. Schroeter, University of Oslo, Cammermeyers
Boghandel, 1926 -- a work which is fundamentally based upon
"Handbuch der Mathematischen und Technischen Chronologie"
by F.K. Ginzel. What more can I say? :)
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