Dershowitz, Nachum School of Computer Science, Tel Aviv University, Ramat Aviv, Israel.
Reingold, Edward M. Department of Computer Science, Illinois Institute of Technology, Chicago, Illinois.
- Diurnal calendars
- Solar calendars
- Lunar calendars
- Lunisolar calendars
- Additional Readings
An algorithm that gives a name to each day. These day names are generally distinct, but not always. For example, the day of the week is a calendar, in a trivial sense, with infinitely many days having the same day name. The design of calendars has been driven by human needs varying over millennia, so the study of calendars is intricately bound to history, astronomy, and religion. Ancient calendars were based on simple observations of phenomena such as the waxing and waning of the Moon, the change in seasons, or the movement of heavenly bodies. Because observational methods suffer from the vagaries of weather and chance, modern calendars tend to be based solely on arithmetical rules, distanced from their motivation in nature.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information