Nachum Dershowitz

Edward M. Reingold

An invaluable resource for working programmers, as well as a fount of useful algorithmic tools for computer scientists, astronomers, and other calendar enthusiasts, The Ultimate Edition updates and expands the previous edition to achieve more accurate results and present new calendar variants. The book now includes coverage of Unix dates, Italian time, the Akan, Icelandic, Saudi Arabian Umm al-Qura, and Babylonian calendars. There are also expanded treatments of the observational Islamic and Hebrew calendars and brief discussions of the Samaritan and Nepalese calendars. Several of the astronomical functions have been rewritten to produce more accurate results and to include calculations of moonrise and moonset. The authors frame the calendars of the world in a completely algorithmic form, allowing easy conversion among these calendars and the determination of secular and religious holidays. LISP code for all the algorithms is available in machine-readable form.

The Ultimate Edition

Calendrical Calculations

Simultaneously displays the date on thirteen different calendars over a three-hundred year period.

Calendrical Tabulations, 1900-2200

René Schott

Laurent Alonso

Abstract: "Bounds are obtained for the solution to the divide- and-conquer recurrence M(n) = [formula], for nondecreasing functions f. Similar bounds are found for the recurrence with 'min' replaced by 'sum-of- all-but-the-max.' Such recurrences appear in the analysis of various algorithms."

Edward M. Reingold

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