"The work is attractively produced and well written, in a crisp and lucid style, its earnest content lightened by touches of humor and details of history that communicate most effectively the authors' enthusiasm for and knowledge of their subject. The book's major contribution is that, for the first time, it places an authoritative computational specification of all these calendars in the public domain. Indeed, this book supplies the essential tools to enable us to proceed cogently and efficiently toward correlation of all these derivative calendrical systems, and Dershowitz and Reingold are to be congratulated on making such strides toward this goal." ISIS
This new edition of the successful calendars book is being published at the turn of the millenium and expands the treatment of the previous edition to new calendar variants. As interest grows in the impact of seemingly arbitrary calendrical systems upon our daily lives, this book frames the calendars of the world in a completely algorithmic form. The book gives a description of fourteen calendars and how they relate to one another. Easy conversion among these calendars is a byproduct of the approach, as is the determination of secular and religious holidays. Calendrical Calculations makes accurate calendrical algorithms readily available for computer use with LISP and Java code included on CD. This new edition will be a valuable resource for working programmers, as well as a fount of useful algorithmic tools for computer scientists.