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IEEE Double Precision

Standard IEEEDoublePrecision

What is the largest and smallest number be displayed in the standard? how开发者_高级运维 is it?


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.

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