On 10/07/2013, at 03:45, Brendan Eich wrote: > Jorge Chamorro wrote: >> 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 > > Yes, you said that last time, and Allen said it before in the message to > which you replied :-P.
He, yes, I'm amazed, there's lots of fun on the edge: a = Math.pow(2,53) 9007199254740992 a === a+1 true a === a+2-1 true And my favorite: (a+1-1) === (a-1+1) false -- ( Jorge )(); _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
