ES Discuss - Message History

Jorge Chamorro (2013-07-10T01:42:29.000Z)

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On 10/07/2013, at 03:23, Brendan Eich wrote:
> Mark S. Miller wrote:
>> FWIW, we include 2**53 as in the "contiguous range of exactly representable natural numbers".
>> 
>> https://code.google.com/p/google-caja/source/browse/trunk/src/com/google/caja/ses/startSES.js#492
> 
> It's exactly representable, but its representation is not exact. If that makes sense!

2**53 is exactly representable, but it gets the exact same representation as 2**53 + 1
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( Jorge )();

domenic at domenicdenicola.com (2013-07-16T16:37:15.447Z)

On 10/07/2013, at 03:23, Brendan Eich wrote:
> Mark S. Miller wrote:
>> FWIW, we include 2^53 as in the "contiguous range of exactly representable natural numbers".
>> 
>> https://code.google.com/p/google-caja/source/browse/trunk/src/com/google/caja/ses/startSES.js#492
> 
> It's exactly representable, but its representation is not exact. If that makes sense!

2^53 is exactly representable, but it gets the exact same representation as 2^53 + 1

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