Comment on near zero

• yetAnotherUser@feddit.de ⁨2⁩ ⁨years⁩ ago

  IEEE 754 floating point numbers have a signed bit at the front, causing +0 and -0 to exist.

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• henfredemars@infosec.pub ⁨2⁩ ⁨years⁩ ago

  Specifically I was referring to standard float representation which permits signed zeros. However, other comments provide some interesting examples also.

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• hungrybread@hexbear.net ⁨2⁩ ⁨years⁩ ago

  en.m.wikipedia.org/wiki/Ones'_complement

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  • mexicancartel@lemmy.dbzer0.com ⁨2⁩ ⁨years⁩ ago

    Who use ones complement?

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    • hungrybread@hexbear.net ⁨2⁩ ⁨years⁩ ago

      I assume no one at this point

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      • mexicancartel@lemmy.dbzer0.com ⁨2⁩ ⁨years⁩ ago

        I think 1’s complement only existed to facilitate 2’s complement. Otherwise its stupid

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• sus@programming.dev ⁨2⁩ ⁨years⁩ ago

  floats

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• Zerush@lemmy.ml ⁨2⁩ ⁨years⁩ ago

  1- 0,99999…

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  • PlexSheep@infosec.pub ⁨2⁩ ⁨years⁩ ago

    Floating point numbers are not possible in two’s complement, besides that, what is your point? 0,99999999… is probably the same as 1.

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    • Zerush@lemmy.ml ⁨2⁩ ⁨years⁩ ago

      Yes, mathematically it’s the same, but in physics there’s a guy named Heisenberg who denies that 0.99999… really gets to 1. There is always this difference, for a mathematician infinite is not a problem, but for a physicist it is, plus a very big one.

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      • PlexSheep@infosec.pub ⁨2⁩ ⁨years⁩ ago

        True, it sounds like that might be a problem if we consider that physics has to be between math and computer science.

        (Have a nice day)

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