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This question on Laplace Transform has been deleted for no real reason. OP has showed some of his work. So there is no reason to delete this topic. Vote to undelete. Thanks. Laplace Transform $\left(\frac{\cos \sqrt t}{\sqrt t}\right)$


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It would appear that it is not: Introducing Dark Mode (beta) for Stack Overflow. There are a lot of challenges to implementing dark mode across a platform like ours. We are among the 40 largest websites in the world in terms of monthly unique visitors. We also have hundreds of communities with different design aesthetics. On top of our public Q&A ...


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If the answer is of very low quality, flag it as such. Other users will review this flag, and if necessary, the moderators will intervene. If you see a pattern of this behaviour in some users, or if you suspect foul play, please flag this as "in need of moderator attention" and explain the situation.


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A general advice on choice of tags: How am I supposed to use tags? I will repeat one advice given there - during and after posting the question you're shown several lists of similar questions. You could check some of those post, maybe looking at the tag used on other related posts will help you to find some other suitable tag. You could also try asking in ...


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Just added today... the "follow" feature.


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An example of how I would prefer to write such an answer: Yes, your actions are appropriate. Though, as pointed out by KReiser, if the answer uses something from the comments, I would recommend noting it like so, and to make your intentions clear by stating explicitly the purpose of the answer. Further elaboration, nitpicking, or alternative solutions can ...


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If you are of the opinion that a vote to close or a review or another action on one of your posts was inappropriate you can signal this to the moderators via a flag, chose "in need of moderator intervention" and explain the issue. Moderators then can review the situation and, if appropriate, take some action. The action could be, e.g.: talk to the user (...


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Taking off my moderator hat for a moment. I have always been (since I was 17, anyway) a stickler for avoiding internet abbreviations, and I am still not a fan of emojis to begin with. Participation in this community was always a point of pride for myself, and I felt that I can do this, because this is a community that at least tries to take itself ...


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Unfortunately, I think that some appropriate uses of CW is lost on a lot of users who are reviewing CW posts flagged, inappropriately, as NAA or "this is at most a comment....", and on the flaggers as well, ever since CW has faded out of common use, in the past few years. So a lot of current users don't even know that anyone answering with a CW answer gains ...


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The former is a block quote the later is a spoiler. There is also preformatted text, which might qualify. It looks like this. This is preformatted text. It is especially useful for code. You can get it by indenting the text with four spaces. A feature or issue with this is that it will not break you lines, but instead will add a slider. Like this. This ...


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This subject was already raised from a different angle Corona virus, educational institutions closures... The poster there argues that we should be more permissive. Due to the spreading of Corona, more an more schools as well as higher educational institutions are closing. There is a change of more questions coming to this website from students who now ...


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Some of the omitted symbols here were thought to have already appeared earlier in Unicode. Your Wikipedia table says in a note The reserved code points (the "holes") in the alphabetic ranges up to U+1D551 duplicate characters in the Letterlike Symbols block For example U+2110 is "Script Capital I" and looks like ℐ allowing U+1D4A4 to be ignored ...


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Use \mathcal I_1 to get $\mathcal I_1$.


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There are two things to keep apart: There are automatic questions bans that are based on the quality, or rather the reception, of the questions. If all, or at least most, of your questions are well-received you will not run into this. Here, well-received mostly means not negatively received. It's not necessary to have a great score. Not having a negative ...


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Mods don't have full access to the internal workings of the autoban system but I think this is because your first question was so heavily downvoted that your current aggregate question score is still negative. I can't undo the ban but I threw another upvote in there for you. If you keep asking good questions and they continue to be well-received, this won't ...


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We need to be welcoming and make an effort to onboard a new user. This was true, and remains true. In a time where more and more persons are in situations of distress, it seems apt to try to make an extra effort to be friendly. However, this does not mean that we should change the policies of this site on a whim. The guidelines are also in place to ...


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mathjax now supports auto numbering line, but turn off by default. Usage <script> window.MathJax = { tex: { tags: "ams" } }; </script> <script type="text/javascript" id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js" ></script> Now all ...


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This is intended and there is no way to revert. For more information and discussion about the matter, see here. A quick summary of the motivation, found in the aforementioned post: We’re making a few changes to blockquotes soon. Historically, we had a bit of feedback that the yellow backgrounds were overpowering, reducing the contrast of the quote ...


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I believe that the most elegant solution of the problem is @ChristianBlatter’s, namely to convert a direct question, such as “Who are you?” to an indirect question: “I’d like to know who you are.” Note that a direct question is an interrogative sentence and takes the question mark, while an indirect question is (usually) declarative, and properly takes no ...


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I don't think we have, or should have, an official policy. To some extent this is a question of how much did you end up changing. If the correction is minor, by all means, edit and undelete. If the correction is an entirely different argument, I'd think it's a bit disingenuous to keep your votes from before, in some sense. Nevertheless, it is a good idea ...


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For me the allowed punctuations at the end of a displayed equation are $$[{\rm no\ punctuation}]\qquad.\qquad,\qquad;\qquad\square\qquad,$$ where $\square$ is a widely used sign for $\langle$q.e.d.$\rangle$ . In the example of the OP one could easily write I was wondering where does the formula for redshift $$z=\frac vc$$ come from. Can it be derived ...


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To answer the question in the title: anything to be done about this? Mostly, no. What should we do? For one account auto-bans kick in quickly, thus there is not much point to suspending or deleting the account, for most practical purposes it's "dead" anyway. But, then a new account is created and the thing continues. That's something that is not really ...


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[Promoted from comment to answer, by popular demand] It means that teachers like to formulate their answers to meet the needs of individual students, and can't do that if we don't know anything about the student. If a question just asks, "what's the integral of $\rm{sech}^2x$?" then we don't know whether the student's problem is not knowing what $\rm{sech}^...


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If a question has an upvoted answer, then the question is answered. Acceptance of answers is still in the hands of the askers, and they won't necessarily oblige. There are many unaccepted answers in which the asker tells every answerer: "Thank you! This helped a lot!". How do you suppose we (as a community) subsequently determine which answers ought to be ...


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