THE NEW Miscellaneous Talk That Doesn't Deserve A New Thread Thread Thread (Part 2)

What have they done again?

Watch the video to find out

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If I ever become that rich and powerful, Iโ€™ll make Nintendo pay.

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F_0 = \dfrac{1}{4\pi\epsilon_0}\dfrac{|Q_1||Q_2|}{r^2}

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Is that equation for defeating Nintendo?

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Attraction of charges or bodies? I wonder.

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I wonder if Twilight will show up on Christmasโ€ฆ

I finally remembered to turn on the Santa hats (thanks to people pinging me about it being my anniversary).

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Guess the thrivesmas period has begun.

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Does it though? If you divide a positive number by a smaller and smaller positive number the limit is obviously infinity, but thereโ€™s other kinds of numbers. Dividing the same number by a smaller and smaller negative number gives a totally different limit, negative infinity. This means we donโ€™t know the sign of our answer. The limit of dividing by zero is +/-infinity, which is two answers, which isnโ€™t really a limit, itโ€™s supposed to converge, not diverge. except thereโ€™s a third answer. 0. If you divide zero by smaller and smaller numbers, either positive or negative, you approach 0. So, we approach infinity, negative infinity, and zero, all at once. I wouldnโ€™t call that a limit. Itโ€™s undefined for a reason.

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The keyword is โ€œlimit equationโ€ which has different infinity rules than normal equations. I canโ€™t remember that much math after years of not using most of it, but I think limit equations can very easily and often converge on an infinity even if the limit it approaches is (causing) a division by zero.

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Iโ€™d think dividing 0 by 0 would result in 1, since thatโ€™s what other numbers do when divided by themselves.

0/0 is not one. What is one divided by negative one (x/-x for any real x)? itโ€™s negative one. Again, sign matters, and zero does not have an ordinary sign. If zero is of equal sign with itself, youโ€™d be right, but with itโ€™s lack of a sign, 0/0 is in a superposition of +/- 1. or is it? Because if you divide 0 by smaller and smaller numbers, negative or positive, you always get 0. Just like any number divided by zero, weโ€™re stuck with three answers, itโ€™s just replaces infinity with one. If you have three answers, you donโ€™t have an answer, which is what we are looking for. Again, undefined for a reason.

Youโ€™re totally right, but I donโ€™t think that applies to the general case of x/0. think of these two graphs.

Both have a division by zero but the limit exists only for one of them because x^2 is always positive while x can be of either sign. 1/0^2 isnโ€™t any saner of a statement than 1/0, but 1/0 has two directions you can approach it from that have wildly different logical limits, while 1/0^2 kinda just has the one logical limit.

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New poll time

When have you last seen a mosquito?
  • 1 hour ago
  • 6 hours ago
  • 1 day ago
  • 1 week ago
  • 2 weeks ago
  • 1 month ago
  • Even earlier
0 voters
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Oh hey we got little hats again.

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You belong to West facing hats, one of us, me, hh. Welcome.

Unless itโ€™s different each client

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Itโ€™s different based on the visible post index so itโ€™s going to change for you a lot as well.

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Canโ€™t wait until forward-facing hats

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@silentium.noxe Only 2 questions, please.

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Take any 2 :person_shrugging:
โ€“this message too shortโ€“