Re: On writing negative zero - with or without sign


<tholen@xxxxxxxxxxxx> wrote in message
news:46a5def2$0$8048$4c368faf@xxxxxxxxxxxxxxxxx
jvorbrueggen@xxxxxxxxxxxxxxx writes:

And with regard to the other replies: Yes, I know about g-2, and some
other
examples for high-accuracy measurements. The astronomical one is actually
quite interesting: Various compound values, in particular GM for various
heavenly bodies, are known very well, as they can (and need be) measured
to
high precision for navigation. G, on the other hand, as one of the
fundamental
constants, is only known to 10^-3 or so, and likewise the related values
for
the masses of the bodies.

CODATA gives G to a lot better than 10^-3. But GM is still known a lot
better.
I was always amazed at the mosaic that are computations in astronomy. It's
hard to get a second opinion from the other side of space. Dr. Ptak always
said that getting measurements to within an order of magnitude was very
good.
--
Wade Ward


.

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