On Wed, 3 Jan 2007, Jonathan Leffler wrote:
Can you give a reference to Jan Meeus's book?
The book is "Astronomical Algorithms" 2nd Edition, 1998, Willman-Bell.
ISBN: 978-0943396613
A simple book search on Amazon didn't turn it up.
Here's the amazon link:
http://www.amazon.com/Astronomical-Algorithms-Jean-Meeus/dp/0943396611/
A Google search for Jan Meeus suggests that
maybe it should be Jean Meeus (aka Jan Meeus),
Sorry I thought it was Jan.
Incidently the code I have is from the Date::Indian module on CPAN which
is not complete and woefully underdocumented. The author of that module
converted it to perl from Javascript and it was a comment in the
javascript which led me to the Meeus book.
I've tried to add some comments in my code and simplify it but I'm not, to
put it charitably, mathematically gifted so perhaps its more complicated
than it needs to be.
Did you compare it with "Calendrical Calculations: The Millennium
Edition" (see http://www.calendarists.com/)?
Yes I own this book and it is much more "practical" than the Meeus book
and (thank God :-) lighter on the math. However as I mentioned, the
algorithms in CC: TME as used by the DateTime::Util::Astro::* modules give
me the wrong results. Why? I cannot say at this time.
--
Jaldhar H. Vyas <[EMAIL PROTECTED]>
