jimmydoreisalefty@lemmy.world to Videos@lemmy.world · 10 months ago(I wonder if he knows about lemmy)1 divided by 0 (a 3rd grade teacher and principal got it wrong), Reddit r/NoStupidQuestions [4:51 | Dec 02 2023 | bprp precalculus]www.youtube.comexternal-linkmessage-square10fedilinkarrow-up10arrow-down10
arrow-up10arrow-down1external-link(I wonder if he knows about lemmy)1 divided by 0 (a 3rd grade teacher and principal got it wrong), Reddit r/NoStupidQuestions [4:51 | Dec 02 2023 | bprp precalculus]www.youtube.comjimmydoreisalefty@lemmy.world to Videos@lemmy.world · 10 months agomessage-square10fedilink
minus-squareDoctor xNo@r.nflinkfedilinkEnglisharrow-up0·edit-210 months agoInfinite, just like 0, actually has no - or +. So yes and no. For all intents and purposes -inf == inf.
minus-squareFooBarrington@lemmy.worldlinkfedilinkarrow-up0·10 months agoThis is completely wrong, please don’t listen to this person.
minus-squareDoctor xNo@r.nflinkfedilinkEnglisharrow-up0·10 months agoI suggest you Google “Projectively Extended Real Numbers”.
minus-squareFooBarrington@lemmy.worldlinkfedilinkarrow-up1·10 months agoYou mean this one? The projectively extended real number line is distinct from the affinely extended real number line, in which +∞ and −∞ are distinct. Now tell me, do we usually work with the projectively extended real numbers?
Infinite, just like 0, actually has no - or +. So yes and no. For all intents and purposes -inf == inf.
This is completely wrong, please don’t listen to this person.
I suggest you Google “Projectively Extended Real Numbers”.
You mean this one?
Now tell me, do we usually work with the projectively extended real numbers?