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Re: Julian time problem [message #51489 is a reply to message #51446] Fri, 24 November 2006 05:30 Go to previous messageGo to previous message
Jonathan Dursi is currently offline  Jonathan Dursi
Messages: 9
Registered: November 2006
Junior Member
Paolo Grigis wrote:
> They *are* the same:

In particular, the difference between the two quantities (~4.65e-10) is
a couple parts in 1e16 of the value (~2.45e6), and you simply can't do
better than that in the usual IEEE double precision math.

If your methods depend sensitively on floating point values giving you
results more precise than a few parts in 10^{16}, then I fear your life
will be full of sadness, or at least computationally expensive
arbitrary precision mathematics libraries.

- Jonathan
--
Jonathan Dursi
ljdursi@cita.utoronto.ca
http://www.cita.utoronto.ca/~ljdursi/
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