Comment on near zero

• marcos@lemmy.world ⁨5⁩ ⁨months⁩ ago

  Unknowingly from the GP, that’s where CE got it from.

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  • Gladaed@feddit.de ⁨5⁩ ⁨months⁩ ago

    What is gp/ce?

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    • marcos@lemmy.world ⁨5⁩ ⁨months⁩ ago

      Grand parent / computer engineering

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• Leate_Wonceslace@lemmy.dbzer0.com ⁨5⁩ ⁨months⁩ ago

  What algebra uses negative 0?

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  • agamemnonymous@sh.itjust.works ⁨5⁩ ⁨months⁩ ago

    When taking about limits, you can approach 0 from the positive or negative direction, which can give very different results. For example, lim cotx, x->0+ = ∞ while lim cotx, x->0- = -∞

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    • Leate_Wonceslace@lemmy.dbzer0.com ⁨5⁩ ⁨months⁩ ago

      Speaking as a mathematician, it’s not really accurate to call that -0.

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      • agamemnonymous@sh.itjust.works ⁨5⁩ ⁨months⁩ ago

        Yes, but it is infinitesimally close.

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      • Gladaed@feddit.de ⁨5⁩ ⁨months⁩ ago

        You also can’t call something infinity. People call stuff names. It is just important that they define their terms well enough.

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  • barsoap@lemm.ee ⁨5⁩ ⁨months⁩ ago

    IEEE 754

    I mean it’s an algebra, isn’t it? And it definitely was mathematicians who came up with the thing. In the same way that artists didn’t come up with the CGI colour palette.

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  • Gladaed@feddit.de ⁨5⁩ ⁨months⁩ ago

    Math is more than just the set of all algebras.

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    • Leate_Wonceslace@lemmy.dbzer0.com ⁨5⁩ ⁨months⁩ ago

      I’m aware. Algebra is what I’m most interested in, and so when someone says “0” I think “additive identity of a ring” unless context makes the use obvious.

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      • barsoap@lemm.ee ⁨5⁩ ⁨months⁩ ago

        Depends, I’d say. Is your set theory incomplete or inconsistent?

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