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10:25 AM
Please undelete & reopen this.
 
10:54 AM
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Q: "3n + 1 problem" variant, using (n/2 + 3)

mattrdowneyBackground Variant "3n + 1 problem" Consider a mapping similar to the original "3n + 1 problem" (Collatz conjecture): $n → n/2 + 3$ for even n (variant rule due to +3) $n → 3n + 1$ for odd n Python Code from collections import deque def hailstone_cycle(n): sequence = [] while n not in ...

 
11:16 AM
PSQ with five upvotes and an answer due to a former moderator.
 
 
11:41 AM
@Shaun There is no reason to undelete the current version, but I might agree an undelete if the question is improved and a reasonable meaning of "hyperreal numbers" is mentioned and if there is no link to a math youtube video anymore.
 
11:57 AM
@Peter I disagree, and those suggestions seem arbitrary. I have linked to questions on what "hyperreal numbers" mean. The YouTube video is necessary context.
 
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A: Requests for Reopen & Undeletion Votes (volume 01/2022 - today)

ShaunDeleted and not open. Please consider undeleting and reopening the following question: In what sense is $\Bbb R(x)$ an "instantiation" of the hyperreals? It seems to have been closed simply because $\Bbb R(x)$ is not an "instantiation" of hyperreal numbers in the strict sense of the word, rather ...

 
@Shaun Posts containing advertising for bad made up videos do not belong on this site. Instead of complaining why do you not just improve the question so that it deserves an undeletion ?
 
@Peter It is not an advertisement. What improvements do you suggest?
 
@Shaun It surely is advertising. This is off-topic on this site. Remove the link for the video and replace it with a reasonable definition of a "hyperreal number" , then an undeletion is probably OK.
 
12:20 PM
@Peter I'm quite puzzled by your claim that questions sparked by youtube videos are "advertisements". The post is a hgh quality question - one that often occurs to readers when initially encountering hyperreals. It should have never been deleted (and ths dupe choice is horrible). It deserves to be undeleted and reopened.
 
 
3 hours later…
3:22 PM
 
 
6 hours later…
9:51 PM
D1, D2, D3.
D4, D5, D6.
D7, D8, D9.
C1, C2, C3.
C4, C5, C6.
C7, C8, C9.
 

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