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00:00 - 21:0021:00 - 00:00

user41796
9:00 PM
@Ixrec has to have at least 20 rep in order to post in chat rooms
 
7
A: Inserting data in 3 tables of a database with JPA

Duga What my main question is, is since I'm new to JPA if I'm using an efficient way to insert the data fetched from the Twitter API in my database. Well, it's not entirely bad, I understand that you need it because only your sqlmanagement.XXX classes are annotated with @Entity. You could improve...

 
user114359
Seems legit. Click on Duga in chat and the CR account is its parent account.
 
user114359
I bet a SE employee is just having a little fun.
 
user41796
31
Q: New SE Chat Bot feature for identifying when Programmers is mentioned on Stack Overflow

maple_shaftThere are some very creative SE users and contributors to Code Review that have used the Stack API to build an open source SE Chat bot that is currently being used for many things. https://github.com/Zomis/GithubHookSEChatService The top contributors of this project have graciously offered to i...

 
user41796
Duga isn't an official bot. Official bots have negative user IDs
 
user41796
 
user114359
I did not know that, I thought it was run by SE
 
user41796
The TL;DR is that the kindly folk over at CR got sick and tired of the crap recommendations on SO to post over at CR. So they created the bot to monitor those recommendations. I forget which mod (maple shaft?) connected with them and got Progs monitored too.
 
user41796
I don't know if Duga has official blessing or not, but I'm 99% certain SE is aware of it.
 
user41796
And likely is allowed to continue under the "doesn't cause harm" classification.
 
user114359
I should dive in and farm up some more rep on SO, even just 3k, so I can help stop the "crap catapult" as I think MichaelT called it.
 
user41796
9:10 PM
tbh. Our responding to comments over on SO has appeared to slow things down.
 
user41796
comment frequency of "go ask on Progs" appears to be decreasing
 
user114359
I would be hard-pressed to see how SE the company could not be aware
 
user114359
I've been trying to help lately too, and Duga helps me help SO.
 
user41796
@psr - I found that story hilarious and likely true
 
user41796
@Snowman It's a perfect way to provide targeted feedback. I've gotten a lot of thanks comments for pointing out why not to post it on Progs
 
user41796
9:12 PM
Our meta.progs "what goes on progs, a guide for SO" post is helpful to link at the same time.
 
user114359
I try to make a game of it to see if I can respond faster than gnat to "post on Programmers"
 
user114359
I usually lose that game
 
you cannot defeat bot!gnat
 
user41796
buh-bye my last close vote
 
user114359
0
Q: finding needle in a haystack?

user299709so I was recently asked to write a function to find a needle in a haystack. I exploded the string, and would look for the word in the array. However, this wasn't the answer! The question asker asked if there was a better way and I could not. What other algorithm exists that is common knowledge ...

 
user114359
9:14 PM
That one?
 
it's getting eerily easy to tell if a question is close-worthy just from a glance at the title
 
user41796
@Ixrec It's probably worth pointing out that @gnat has a positive user ID number, so he's not an official SE bot. Feel free to speculate on whether or not they've attempted to adopt the AI.
 
I VTC'd it too
 
user41796
@Snowman How'd you guess? :-)
 
@GlenH7 Seems that way to me too, but I don't spend time in Duga's playground
 
user41796
9:14 PM
@durron597 false identification rate doesn't seem all that bad from when I've perused the playground
 
user114359
If I had any more CVs I'd vote. I have to wait until 8:00 PM
 
psr
@Snowman first you must find a haystack made of needles. After that it's just recursion.
 
@psr no, you start by generating the needle, then you generate the haystack after memozing the needles location
 
user114359
I don't understand that expression. Why not just trick someone into rolling around in the haystack until the needle sticks them, then you found it?
 
Helping with stci has left me without close votes every day now.
 
user114359
9:18 PM
No algorithm needed, just delegation
 
In other news, I'm probably going to be in the top CV reviewers list on wednesday
 
@Snowman get real: Needles have a significantly different burning point than hay, the solution is obvious.
 
user55340
Whee... Out of down votes too today.
 
user41796
@durron597 congrats. I need someone chasing my close vote tally
 
@GlenH7 515 is still a loooong way from 10000 :)
 
user41796
9:20 PM
It goes by fast
 
user114359
@JimmyHoffa Fire, or hurting one's enemies... it is a close call.
 
user41796
If I pay attention this time, I'll notice 10101
 
user55340
And 11111?
 
user41796
Let's not get ahead of ourselves...
 
@MichaelT And the person who is actually chasing you appears.
 
Though I wonder where @YannisRizos and @ChrisF would be in the standings if their closure counted
 
user55340
11⬆️11?
 
user55340
In mathematics, Knuth's up-arrow notation is a method of notation for very large integers, introduced by Donald Knuth in 1976. It is closely related to the Ackermann function and especially to the hyperoperation sequence. The idea is based on the fact that multiplication can be viewed as iterated addition and exponentiation as iterated multiplication. Continuing in this manner leads to iterated exponentiation (tetration) and to the remainder of the hyperoperation sequence, which is commonly denoted using Knuth arrow notation. == Introduction == The ordinary arithmetical operations of addition,...
 
user41796
@Snowman burn it
 
user41796
@durron597 Yannis used to go on periodic purges of the site. His VTD numbers are probably amongst the highest
 
user114359
9:27 PM
@GlenH7 gnat edited that in to durron's answer, looks to be about "educating children"
 
user55340
I have 15k close and 4120 delete votes cast.
 
user41796
12k and 2.6k respectively
 
Hello!! Is someone of you familiar with the Ackermann's function?
 
372 close votes cast. huh. I'm actually quite shocked the number is so much lower than my queue number
especially since I've vtced a ton of stuff outside review.
 
user55340
 
user41796
9:31 PM
@durron597 review queue includes "leave open" votes
 
Hello @MichaelT !! Are you familiar with the Ackermann's function and the Knuth's up-arrow notation?
 
user55340
Vaguely. I was watching a video on big numbers recently. It still blows my mind.
 
@GlenH7 Obviously, but I thought my vtc percentage was a lot higher than that. Oh! I forgot about honeypots though.
 
user41796
Yep, wasted review slots. :-)
 
user114359
@MaryStar I know what Ackermann's function is but I am not sure what its purpose is other than to trick people into trying to prove that it must halt.
 
user55340
 
user55340
A(G64, G64)
 
user55340
You know you want to calculate that.
 
@MichaelT A(G64, G64) ↑^A(G64, G64) A(G64, G64)
 
user114359
Ah, Graham's Number... when the definition includes "n-dimensional hypercube" you know it is time to change the topic of the conversation. en.wikipedia.org/wiki/Graham%27s_number
 
At the end of the semester I will have a presentation about the Ackermann's function. I am a little confused if I should mention the Knuth's up-arrow notation. I will mainly use Rozsa Peter's version of the Ackermann's function. I will mention the original version at the beginning. The Knuth's up-arrow notation is related to the original version or not? Do you think it is a good idea to add the Knuth's up-arrow notation at the presentation? What would you advise me? @MichaelT @Snowman
 
user55340
9:39 PM
@durron597 still smaller than Inf.
 
user55340
@MaryStar watch the video I linked. It does a reasonable job of explaining up arrow for a layperson.
 
user114359
@MaryStar While I am familiar with these topics, I am not really qualified to advise on this. Ackermann and Knuth notation are not things that I have ever found a use for, so I tuck them away in the "trivia" part of my brain.
 
user55340
For me it goes in the "nope, too big for BigDecimal"
 
user55340
@MaryStar you might try poking at MathEducators.SE.
 
user55340
 
user55340
9:47 PM
Though their chat room is rather slow. More activity on math.se chat probably.
 
user114359
@MichaelT you mean int[Integer.MAX_VALUE] does not contain enough bits for G64?
 
user55340
I doubt it. Realize that 10^80 is the number of atoms in the universe... And that number is... Big.
 
user114359
@MichaelT I know, I was being sarcastic.
 
user55340
It's a real question. Might be interested to ask how many bits are necessary to hold the number X where 2^X ~= G64. Or 10^X though it doesn't make too much of a difference at that size.
 
@MichaelT log_2(G64)?
 
user114359
9:59 PM
Speaking of the number of atoms in the universe, and numbers so large they cannot be encoded in the observable universe if each digit takes up a single planck length... the sheer size of this thing is insane: en.wikipedia.org/wiki/Observable_universe
 
user55340
@Snowman but rather low density.
 
user114359
Apparently the observable universe is 4*10^83 liters
 
user114359
Yes, 9.9 x 10^-30 g/cm3 (equivalent to 6 protons in a cubic meter of space)
 
How the hell do we know the diameter of the universe
 
user114359
observable universe
 
10:01 PM
@Snowman ahh true.
 
user55340
Observable is key.
 
user114359
SciFi.SE has some interesting questions about the size of the universe and traveling through it. Leave it to a bunch of Trekkies on the Internet to do the math:
 
user114359
18
Q: Why would Voyager require 75 years to return home?

trejderThe Star Trek: Voyager Wikipedia article says: "(...) show is initially set on the other side of the Milky Way galaxy, 75,000 light-years from Earth (...)" and "(...) Voyager to make the estimated 75-year journey home". This is confirmed by capitan Janeway, who says in the first episode, that (I ...

 
user55340
 
user55340
And my own contribution to it: reddit.com/r/theydidthemath/comments/2otllm/…
 
10:09 PM
@Snowman Well, Voyager was thrown to another location in the same galaxy
 
My favorites are the questions about comparing the math in different Star Trek shows and pointing out that it's nigh impossible to make them all mutually consistent
 
user114359
@Ixrec exactly. It is all made-up stuff, even if grounded in science. The lengths to which some people go, doing all the math... I still find it interesting in a WorldBuilding-esque kind of way.
 
@Ixrec Because half the time the writers didn't consult with the technical consultants. Why even have the consultants if you weren't going to talk to them?
 
at least you can get an objectively correct answer to "what are the red lights on the back of the enterprise?"
 
user114359
@MichaelT Once again, reddit never fails to deliver. What it delivers I do not know, but it is good at it.
 
user55340
10:14 PM
@Snowman 12m years of flatus to go to the moon.
 
user114359
Burninate:
 
user114359
0
Q: Where does the "spaces before braces" rule come from?

Joe Z.In most snippets of programming I've seen out there describing different bracing styles in languages that use braces, there's always a space before opening braces on the same line as other text, regardless of the style being discussed: if (condition1 && condition2) { ... } But in my person...

 
> You have no more close votes today, come back in 1 hour.
 
user114359
Same :-(
 
@Snowman: I don't understand how people can care about things like that enough to motivate asking such a question
 
user55340
10:19 PM
0
Q: Why don't people use white space inside parentheses?

William PursellClearly, this: if( foo( 5, 6, 7 )) do_something( arr[ 5 ]); if more readable than: if (foo(5, 6, 7)) do_something(arr[5]) yet very few people use whitespace inside their parens. The venerable indent program doesn't really provide useful options for this behavior (the option to includ...

 
user55340
Lots of fun in coding style.
 
user55340
If you want a dup:
 
user55340
-4
Q: Should I use spaces around if else control structure and curly braces?

SithuShould I use spaces around if else control structure and curly braces? What do you think? if ($a === $b) { foo(); } else { $bar(); } or if($a === $b){ foo(); }else{ bar(); } I always use the second style because I feel it saves me a few key stokes and a few bytes. What is th...

 
user55340
(Though nope, not a dup - just related)
 
@Snowman What should I tell him? (see comments in your linked question)
 
user114359
10:25 PM
Primarily opinion based
 
user114359
Maybe code style should be explicitly off-topic and should be blacklisted
 
What I mean is, he asked me if he should delete his question
@Snowman Add it to stci
 
user114359
He probably should, mainly because we are all out of CVs.
 
Joe Z. is a very good poster on puzzles stack exchange, he should know better
 
**ME:** What do you mean by "best?"
**THEY: ** *[Why won't this asshole just answer my question or bugger off?]*
Markup fail, again.
 
10:32 PM
Just saw this. Fascinating discussion
-7
A: Why are "Fact Checking" questions not welcome on Stack Overflow?

user000001I voted to reopen the question after it was initially closed (before a moderator closed again) and would vote to reopen it again if I could. My reasoning is that this was a question by Ed Morton. For the people that don't know, Ed is one of the few real experts that participate in Stack Overflo...

 
user114359
0
A: Structured Tag Cleanup Initiative Phase II Planning

Snowmancoding-style (488) Off-topic and categorically primarily opinion based. Coding style is the domain of religious debates and flame wars anyway.

 
11:34 PM
@JonW I'd argue that UX designers are the ones to define ARIA labels, and not programmers. Inclusive design modules are far more common in HCID degrees than in computer science. This question is about the user experience of users using AT - that's more UX than programming in my view. — Izhaki 32 secs ago
 
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