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15

answers:

1
Q: 

IEEE Double Precision

Standard IEEEDoublePrecision
What is the largest and smallest number be displayed in the standard? how is it?

+2  A: 

The largest "number" you can store in IEEE754 double precision is Infinity, the smallest is -Infinity.

If you mean non-infinite representations, then that would be roughly

     ±1.7976931348623157 x 10308.

See here for an excellent answer regarding IEEE754 formats. See here for a wikipedia article showing the representation.

paxdiablo  2010-10-20 07:27:08
Infinity isn't a number.
Gio Borje  2010-10-20 07:29:58
Hence the quotes around `"number"`.
paxdiablo  2010-10-20 07:35:55

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