Assuming a linear model of $$ y = \beta_0+\beta_1x+\epsilon $$ I can construct a bootstrapped confidence interval for the estimate of $\beta_1$ by sampling with replacement from all of the $(x_i, y_i)$ pairs from the data. Is it possible for me to tell if the value of $\beta_1$ is significant,...

I attempted using this query, however this gets all accounts that have one related opportunity in the 'New Opportunity' stage, but the account may have more related opportunities in any other stage. What I want is accounts with only one related opportunity, and that opportunity is in the 'New Opp...

Has anyone a working solution to bring up eth0/wlan0 when they are down using the information in interfaces.d/wlan0 and interfaces.d/eth0? I would need it for an IoT device that might have an available ifconfig for eth0 or for both and ifconfig eth0 and wlan0. I would also like the device to c...

I have seen this flying robotic bird on youtube few days ago. Unlike other flying machines/robots, it flaps its wing to fly. Doing google, I came to know that they are called bionic bird. But, bionic bird may not necessarily fly. They can be used as a spying robots sitting on a wall. What d...

I am trying to pass a list of objects to Apex from an LWC controller, and it looks like the Apex controller is getting the right sized list, but nothing is populated. Does anybody have any idea of what could be the problem? Component JS code refreshPeople() { let xxx = []; xxx.push({na...

This question was inspired by a comment to an answer on this question: How would you say “same thing” in Latin? In which an answerer translated "Utinam idem sentires ac ipsa/ipse sentio!" as "If only you felt the same as I (fem/masc) feel!" Thanks in advance.

Generally speaking, R' Yosef Karo doesn't quote authorities by name in his Shulchan Aruch, but rather focuses on what the halacha is in the Shulchan Aruch and leaves the various opinions and rationales to be explained in his Beis Yosef. In going through Hilchos Pesach, I stumbled upon the first ...

I am creating a super villain that developed special abilities from a mutated pineal gland. For now i'm referring to it as the Enhanced 3rd eye or the 3rd Eye ability. From the research I've done, psionic abilities have been linked to the pineal gland. I do not want my character to have just tele...

Whenever my ec2 instance is stopped or rebooted, a new instance is made with an AMI. This normally is fine for applications that are managed with a service like puppet but our Wordpress site is not. I have to do a manual restore/upgrade to the latest wordpress from daily backups. Is there a wa...

I have seen in a lot of places in here clearly stating that relativistic mass is outdated, that we can make do just fine with the concept of invariant mass,etc. But I've also seen people saying that a hotter object is heavier than a colder object. Where they say that the internal energy of the co...

I'm writing a scene in which for characters play a high stakes poker game. So far my narrator has been an omniscient third person, who just does not wish to enter into the characters heads. I started going around the table. I have the fingers fumbling with the corners of the cards, the tapping o...

What causes the sudden spool-up sound from an F-16 when enabling afterburner? I've included a video to make it clear what sound I'm referring to: at 1:16, I assume the pilot engages afterburner (again), and there is a sudden spool-up sound associated with this....

I read this question on why countries impose term limits on leaders, but it seems that the answer is not what I wanted. The reason is basically "to prevent a dictatorship." The only issue is, the public would still be voting every so often on the new president, so he/she could only abuse their p...

I wanted to make a notation with a double dot over a symbol in Mathematica. Searching online or in the documentation did not yield any results. However, just randomly attempting to give a second parameter to the OverDot function surprisingly did exactly what I needed: I assume the red font sug...

We have three groups (soprano, alto, and baritone) and for one of the songs we're singing each vocal section has a piece or section that we have to sing. Our conductor referred to it as a specific word but I can't find anything anywhere... can anyone help me???

I made a spaceship with animation and I want the particles to come out from only the thrusters but it's coming out from all over the spaceship!

As an American, I have been watching the Brexit proceedings with some confusion. To all appearances, British politicians do not want to compromise, and the European leaders do not want to compromise. This suggests that a no-deal Brexit will occur on the 12th (Friday). Given the dire warnings abou...

We know that a subspace is a vector space that follows the same addition and multiplication rules as $\Bbb V$, but is a vector space a subspace of itself?? Also, I'm getting confuse doing the practice questions, on when we prove that something is a vector space by using the subspace test and when...

Here's a somewhat odd SOQL query from the question query user and profile: select user.id, user.Email,user.FirstName,user.LastName,user.profile.name,user.Username,user.IsActive from user, user.profile Note that the FROM clause includes both user and user.profile. Here is a simpler example to...

I own some stock that lost more than half its value. It has now been more or less stable for months, and I'm tempted to get rid of it because I see poor prospects in the future for this line of business. However, I'm told by others that this is unwise, that this is the worst time to sell -- I sh...

I would like to draw the following figure: To do this I have used the following codes : \documentclass[10pt]{article} \usepackage{pgf,tikz} \usetikzlibrary{arrows} \pagestyle{empty} \begin{document} \begin{tikzpicture}[line cap=round,line join=round,>=triangle 45,x=1.0cm,y=1.0cm] \draw [r...

I am trying to create something similar to using this example. I modified the source code and this is what I have \documentclass[tikz]{standalone} \usetikzlibrary{automata,chains} \begin{document} \begin{tikzpicture}[start chain=going left,node distance=2cm] \node[state, on chain] ...

Where A = {1,2,3,4,5,6} and B = {a,b,c,d,e}. My book says it's: Select a two-element subset of A. Assign images without repetition to the two-element subset and the four remaining individual elements of A. This shows that the total number of surjections from A to B is C(6, 2)5! = 1800. I'm ...

I was struggling with this problem: $$100^{2}=x^{2}+ \left( \frac{100x}{100+x} \right)^{2}$$ It came up when i was developing a solution to a geometry problem. I've already checked in Mathematica and the solution is right, according to the answer. The answer needs to be a real positive number b...

I read this in the mid-nineties in what seemed to be new hardback book, but some of the other anthology stories seemed 'of the sixties'. The narrator was recounting his experience visiting some alien world and getting told about their education system. Basically the poorer performing students ar...

My friend and I are having a debate about this. The War Caster feat (PHB, p. 170) says: When a hostile creature's movement provokes an opportunity attack from you, you can use your reaction to cast a spell at the creature, rather than making an opportunity attack. The spell must have a casti...

I have noticed on Cisco ASA 5585 (SSP-20) interface error counter going up specially overrun but so far we haven't seen any production impact or issue, error rate is low so its not noticable but would like to track it down what could be the issue. asa/pri/act# show int detail | b Internal-Data0...

If you shine light on a wall, what will be seen is a "patch" with constant intensity. However, if light is viewed as a wave, then it is oscillations of the electromagnetic field changing from 0 to the amplitude and back really fast. So my question is, if I were able to look at the world at extrem...

I had an argument with a friend about when you can perform the Pesach seder mitzvot of eating a kezayit of shmurah matzah and drinking four glasses of wine (beginning with kiddush). My friend said that you must wait until after sunset to say kiddush and eat the kezayit of matzah since these mitz...

We are asked to solve for $x$ and $y$ in the following pair of simultaneous equations: $$\begin{align}3x+2y&=36 \tag1\\ 5x+4y&=64\tag2\end{align}$$ I can multiply $(1)$ by $2$, yielding $6x + 4y = 72$, and subtracting $(2)$ from this new equation eliminates $4y$ to solve strictly for $x$; ...

I'm studying up on adding an OOB Workflow for a list. When I am at the Add a Workflow form, there is a drop down element called "Select a Task List:" with two choices: "Workflow Tasks" and "Tasks (New)". What is the difference between the two? The description really isn't self-explanatory.

I want to take Keisei line service from Narita airport terminal 2. Will I be able to use my international debit card to pay for the ticket?

I bought this pencil from Uniball which is a Japanese made. It is a beautiful product. The name of the pencil is Shalaku. I wish to know what it means.

In many of my undergraduate classes, professors required up to date editions of textbooks. This was across a number of subjects from Computer Science to Accounting and across introductory and more intermediate levels. What is motivating new editions of textbooks? Are professors who published con...

I understand that it is common practice in electronic design to simulate a circuit in some spice program before building it. Sometimes a project requires the use of complex ICs, for instance an IC which performs charge control for a Li-Po battery or an IC which acts as PWM controller. Manufacture...

In C++11 I use std::next because If I want to change vector to list, I dont have to change the rest of code. For list, std::next is O(n), because I need to iterate all elements. But how is it for a vector? I have found this note on cppreference: However, if InputIt or ForwardIt additionally...

The JSON2Apex web tool offers 2 methods of parsing of the JSON string: one uses JSON.deserialize method, and the other creates parser and iterates over the input json. The second option can be enabled by checking "Create explicit parse code" in the tool. QUESTION In what cases would a developer...

I followed the instructions here How to send an email using command line?, but it dont work. When I test mailing someone it return: (SASL authentication failed; server smtp.gmail.com[74.125.130.109] said: 535-5.7.8 Username and Password not accepted. I have unlocked captcha as suggested by the...

In case of std::string, if we access an element where (element position) > (size of string) the standard says that it returns a reference to an object of type charT with value charT(). const_reference operator[](size_type pos) const; reference operator[](size_type pos); Expects: pos <...

My dad noticed it flying quite low today, sadly we do not have a better photo. 4-propellers and uniquely shaped tail assembly. Plane was spotted in northern Poland, around 9.30AM, near border with Russia/Kaliningrad.

Magento 2 custom corn is not working in my custom module. app/code/Namespace/ModuleName/etc/crontab.xml <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Cron:etc/crontab.xsd"> <group id="default"> <job name="test_re...

The bearings and hubs on my bike have worn out and need replacing. The local bike shop charges $120 to have the wheel rebuilt with a new hub not including the part cost. I am considering doing this myself to save the money. I have never rebuilt a wheel before but I have done other maintenance on ...

I need to make - and + over the brackets. Like this: \documentclass{article} \begin{document} $1(1+3)(1-4)(1-2)=+$ \end{document}

I'm using an LTC1983ES6-5 to provide a negative rail for both a MAX4311 and a MAX4395. LTC1983 provides up to 100 mA, but I cannot find in the other datasheets how much current is required for the negative supply rail of the components. What parameter(s) I should look to?

Imagine you are reverse engineering a software. This software uses a library, which is obfuscated and encrypted. The library contains a function, lets call'it secret_function. This function is a pure function (i.e. it doesn't have any side effect and when called with the same arguments it returns...

Is there a possibility to check if an object is either an array or a collection with one clause? What I am trying to achieve: Assumed, an Array would implement Iterable, and assumed the Object foo could be either an array or a collection, I'd like to use a code snippet like this: if (foo instan...

I have a binary executable named "alpha" that requires a linked library (libz.so.1.2.7) which is placed at /home/username/myproduct/lib/libz.so.1.2.7 I export the same to my terminal instance before spawning my binary executable by executing the following command. export LD_LIBRARY_PATH=/home/...

I currently have a table of absorbances vs. wavenumbers. How would I change that to a table of %transmittances vs. wavenumbers? The relationship is given by %Transmittance = (10^(-absorbance))*100] I've tried: newtable = Replace[currenttable, i -> ((10^(-i))*100)] No errors occur, but no...

Do astronauts print 3D in space with supports? They are needed only because of gravity, which - on a space station - obviously is not a problem.

During my chemistry lab course, I was told by my instructor to make 2 small cuts on the bottom corners of the TLC (Thin-Layer Chromatography) plate. Does this make the solvent rise uniformly on the plate? Is this a standard practice in labs? I could not find any information online. In this questi...

When Billy Batson is gifted the powers of Shazam, the Wizard claims Yes. I give you the power. And with it all my strength. Solomon's wisdom. The power of Hercules. Atlas toughness. The power of Zeus. The courage of Achilles. And Mercury's speed. None of these mythical characters fly, but S...

I am totally lost in the sentence as when Agent Coulson was dying, he said this to Fury: I’m sorry, boss. The god rabbited," I assume the god refers to Loki? And how did rabbit have anything to do with Loki? (because Loki's helmet had long horns, like rabbit ears?) I checked the meaning of...

One of my manuscripts was "unsubmitted" and potentially rejected by the journal for the reason that it was submitted to a preprint server. Is it normal for the journal to reject a paper that was submitted in a preprint?

I am trying to fetch table on frontend but getting this error Fatal error: Class 'Crud\Crudatfrontend\Model\ResourceModel\Post' not found in D:\xampp\htdocs\newmag\vendor\magento\framework\ObjectManager\Factory\AbstractFactory.php on line 93 app/code/Crud/Crudatfrontend/ ├── Block │ ...

I have created a fighter, who is using heavy armor and has the Heavy Armor Master feat. The Heavy Armor Master Feat states that: While you are wearing Heavy Armor, bludgeoning, piercing, and slashing damage that you take from non-magical Weapons is reduced by 3. This character was shot an...

Imagine when a jet fighter swoop in to drop a 400 pounds giant chainsaw to you just so that you can use it to grind down one problematic enemy into a pulp then discard it a foot away from you. What power source would suit such a weapon with only 1 instant use before breaking itself apart?

How can two versions of the same function, differing only in one being inline and the other one not, return different values? Here is some code I wrote today and I am not sure how it works. #include <cmath> #include <iostream> bool is_cube(double r) { return floor(cbrt(r)) == cbrt(r); } bo...

If i will buy something like smartphone or a new PC, when you have this 2 options options: Pay all the cost at the moment. Pay it in 6/12/18 months (with loan but without any interest rate and any extra cost). What is the best option and why? I know that the problem depend on the money tha...

Flight data recorders store massive amounts of data per flight and despite improvements year on year with data storage as with Moore's law, carrying larger and larger amounts of data can become expensive, through larger hard drives and the extra weight. So, is a flight data recorder erased after...

The plural of Tumor is not, as one might have expected, Tumore, but Tumoren. The Duden says der Tumor; Genitiv: des Tumors, Plural: die Tumoren, umgangssprachlich auch: Tumore So Tumore is just the colloquial plural and sounds more natural. I hear many German native speakers say Tumore, ev...

It appears that whilst bootstrapping a node, Tezos will only make use of a single CPU. Is there a reason for this and would Tezos benefit from any parallelisation?

Assume a guy who has a lump of silver, and need to get it really small. Ideally down to dust level, if possible. The techlevel of the society around him is comparable to late-roman (200-400 A.D). From my research I already know, that they had no real steel, but high quality iron for the use in...

I want to solve the system $Ax = b$ where $A \in \mathbb R^{n \times n}$ and $b \in \mathbb R^n$ with $n \approx 10^6$. If $A$ would be a fully dense matrix this would be hopeless of course but luckily the matrix is sparse and highly structured. The matrix $A$ can be written as \begin{align} A ...

How shall I semantically distinguish to be pedantic and splitting hairs while they both indicate the same message about a person who is paying too much attention to some unnecessary details?

History has seen its share of mentally impaired monarchs. Some examples from the last centuries include King George III of the United Kingdom, Emperor Ferdinand I of Austria, and Emperor Taishō of Japan. It seems natural (to me, at least) that that insanity is used as an argument against Monarchy...

So I have this basic code: But the fractional alignment looks awful, any tips to fix this? \documentclass[11pt, a4paper]{report} \usepackage{bm} \usepackage{amsfonts, graphicx, verbatim, amsmath,amssymb, amsthm, mathrsfs, eufrak} \usepackage{color} \usepackage{array} \usepackage{setspace}% if y...

I have an array of user IDs, I want to get data for each of these users. I first thought of writing a classic SQL query but I found WordPress has integreted functions for it. However, get_users(...) is only returning me 1 users though it should return 3. What am I doing wrong? var_dump($targetUs...

I have a postgres 9.6 server with > 100 databases on it. When doing a mass-migrate, I use statements like this: ALTER DATABASE mydatabase SET default_transaction_read_only = false; Which works great. However, occasionally I get into a state where I'm not sure which databases are read only and ...

String email ='shilpa..test@gmail.com' Boolean isValid = Pattern.matches('([a-zA-Z0-9_\-\.]+)@((\[a-z]{1,3}\.[a-z]{1,3}\.[a-z]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{1,}|[0-9]{1,3})',email); I am trying to validate the email in apex, but before @ the above expression is allowing doub...

I have created a python function within field calculator to calculate the time difference between a timestamp (yyyy-MM-dd HH:mm:ss) in a row and the row after (the interval field in seconds). I have used a update cursor with field calculator to do this, however I am receiving null values for both...

For example, a coalition of Conservatives and Labour, as currently this would command a clear majority and represent a greater majority of the population. Surely representing more of the population is desirable and there is nothing to stop the major parties from being more closely aligned in t...

I tried to serialize a map with null value (api 45): Map<String, String> bodyMap = new Map<String, String> {'key'=>'value', 'key2'=>null}; System.debug(JSON.serialize(bodyMap,true)); but it does not suppress null value (as it does in a custom object): {"key2":null,"key":"value"} Does it wor...

(enlarged version) The answer is a group of islands.

Using only reaction wheels powered by solar panel and the sunshield as a sail to generate thrust from solar photon pressure, could JWST stay in its orbit around L2 "forever" (theoretically at least)? In this case it couldn't fulfill it's main objective, which is to be a space telescope pointing ...

In the mid-credit scene, we see Shazam invites Superman to his school in the lunch break. From previous knowledge, we know that Shazam has been a part of Justice League. But there was no cameo of any of the Justice league character in the film, and that of Superman is faceless. Do these two fil...

I've got problem to replace " to \" and \ to \\ and except " of json test.txt input file "a" "b" {"1":"female","2":"197312","3":"359","4":"201109","5":"mail"} \uff08\u524d\u5bfe\u5fdc I want to output like \"a\" \"b\" {"1":"female","2":"197312","3":"359","4":"201109","5":"m...

I'm running the sleep command in terminal using screen and in detached mode. Once the screen immediately returns, I'm running ps command to verify the sleep is running. $ screen -d -m 'sleep 2m' [raj@localhost ~]$ ps PID TTY TIME CMD 22795 pts/0 00:00:00 bash 22869 pts/0 00:00:00 ...

I am supporting vendor based application, which is filled with blocking and deadlock. Deadlocks occur mostly involving two or three processes however I noticed yesterday, it was involving 9 SPIDs. Can somebody please help me in understanding this deadlock graph and solution on how to avoid this. <

Just for fun, I want to create a character who can vary from really tiny or smaller to huge or bigger. Which is the bigger/smaller combination to create that "Ant Man" style char? It can: Be from any race. Be from any class. Use any magical-item combination. Use temporary buffs/magic, but onl...

Writing. There comes a time in my daily routine. I get a striking idea. A topic to write in my blog. A pondering about a specific event that happened hours ago. As a working professional (not as a writer) I didn't get time to reflect on these thoughts on a daily basis. I do keep a journal of suc...

I have two nested objects obj1 and obj2 and I want to compare them and the recursively return an object that for each nested key has a equality-like boolean flag So for a given obj1 like obj1 = { prop1: 1, prop2: "foo", prop3: { prop4: 2, prop5: "bar" } } and the obj2 like o...

In computer science we are more or less used to the term widget: An application, or a component of an interface, that enables a user to perform a function or access a service. The user interface for the Stack Exchange sites hosts several of these widgets. The word is being used as is in Spa...

I'm new to LaTeX and I don't know how to use the CTAN package for typing APL symbols. So far I use the wasysym package but symbols like the ⍎ (down tack jot) are not included. I have downloaded the apl CTAN package which is a directory of various files but I can't find instructions on how to use...

When I try to set root's password: root@OpenWrt:~# passwd Changing password for root Enter the new password (minimum of 5, maximum of 8 characters) Please use a combination of upper and lower case letters and numbers. It seems the maximum length is 8. If I try to set a password longer than 8, ...

There is this image going around: which claims that bread is bad for ducks and swan, and that you should feed them lettuce, peas and sweetcorn instead. Is there any truth to this and are there any reliable sources?

In Spider-Man: Into the Spider-Verse (2018), this is how she looks: Who is that cowgirl appearing during the Columbia Pictures intro?

My doubt arises due to the following : We know that the definition of the derivative of a function at a point $x=a$, if it is differentiable at $a$ , is: $$f'(a) = \lim_{h \rightarrow 0} \frac {f(a+h) - f(a)}{h}$$ Suppose that the function $f(x)$ is differentiable in a finite interval $[c,d]$ a...

We know that Howard Stark was developing radical technologies. So when he comes upon a small, finite supply of the most valuable, world-changing metal known to humans, the first thing he does is whip it up into a "prototype" shield and then forget to even put it on a shelf? Then he sends it into ...

I was playing Azul the other day, and by a bad choice, one of the players ended up subtracting points until they were in negative numbers. How should you act in these cases? Is the negative score maintained or does it remain at 0?

I want to use lstlisting for some Python code, and I have a code segment that looks like this: \documentclass[11pt]{article} \usepackage{color} \usepackage{listings} \lstloadlanguages{Python} \lstset{ language=Python, basicstyle=\scriptsize\sffamily, numberstyle=\color{gray}, stringstyl...

Most authors use dialogue in writing, especially when writing fiction. Now, if I remember my first grade primary school correctly, dialogue can be directly separated from narration in a number of ways. Either quotation marks, "Murder," she said. dashes, -Murder,- she said. or angle b...

I asked this question in the law site, but I was told it has more to do with politics (same question in the law site). Let's assume A and B have a discussion about a business deal and A will record the conversation without B's knowledge. Later on, they have a disagreement that takes them to cour...

Service has been suspended since Mar 29th (ref:https://www.vfsglobal.co.uk/us/en/news/service-disruption-message-from-uk-visas-immigration) It looks like all the new applicants are allowed to reserve appointment with USCIS for biometrics (ref: Steps after appointment booking from USA for UK visa...

Beeing used to programming in C-like languages I am struggling with iterations and loops with mathematica. I am trying not to use the For command, as already lots of people recommended. I am trying to solve the following problem: Given the map $z_{i+1}= z_i^2 +c$ with $z_i, c \in \mathbb{C}$ an...

During a train trip I cooked up a semi-autobiographical variation of The Monty Hall problem for people who already know the original. Perhaps it is more of a meta-puzzle than a puzzle, but I hope it is suitable for this site. (At least it got some people disagreeing who knew the correct answer to...

My cat is a senior cat, and has lost most his teeth, he really wants to eat but the food just falls out, he gets so frustrated that he just stops trying. I have to cook for this cat and give vitamin supplements all his life, he gets boiled chicken most days, with shrimp mixed in once in a while. ...

1n3r2/q4pbk/3p2pp/r1pPp3/1pB1P3/1P2BP2/2PQ2PP/3R1RK1 w - - 0 1 I was white in the diagram position in an OTB game I played recently. However, I couldn't find a satisfactory plan. Playing f4 is always tricky because it vacates the e5 square for the black knight and opens up the diagonal for the ...

If I file my income tax on April 15th and plan to pay with a check, it will take a few days for the check to be delivered. Will I face interest and penalties for those few days for the check in the mailing system?

As referenced in this question, there were a number of early spaceflight missions at higher inclination than may be expected (given limited payload capability, higher inclination further limits payload to orbit). Skylab was launched from KSC (approx. 28.5 degrees N latitude); the maximum payload...

Trying to solve a differential equation numerically, I noticed that Mathematica used up all RAM to the extent that my operating system (Windows 10) lost responsiveness and hung up. As a result I had to restart my machine, losing all unsaved progress in the Mathematica notebook I was working on. ...

Let $C_1,\dots C_m$ be a family of ordered set partitions of $[n]$ with exactly $k$ blocks. Write $C_i = \{B_{i1}, \dots, B_{ik}\}$ for $i=,1\dots, m$ where $B_{ij}$ are the blocks of the ordered set partition $C_i$. Suppose this family also has the property that for each $j=1,\dots, k$ $$B_{...

Suppose a curve with self-intersections can be described by $\phi(x,y)=0$. Suppose the intersections are $T_i$, $i=1,2,...$ and the gradient $\nabla \phi$ at those intersections are well defined. Then is it true that $\nabla\phi(T_i)=0$ for all $i$? In other words, are the gradients at those inte...

Hi got a usb wall socket fitted when it was installed i tested the usb port with a tester with the switches off but usb outlet was live is this normal can you let me know Cheers (Sean)

This question may sound silly, but it has been bugging me for years. If I ask a question about a precise point in time, should I say "What time..." or "At what time..."? For example, At what time does Billy arrive at the swimming pool? or What time does Billy arrive at the swimming p...

About 2005-10, I read a story in an anthology. Don't recall the title of the anthology, story or author. Involved the protagonist making repeated trips to the past. At each return, he found the world a little different, but people kept telling him, "See? Nothing's changed." At the end there ha...

Heaps' Law basically is an empirical function that says the number of distinct words you'll find in a document grows as a function to the length of the document. The equation given in the Wikipedia link is where $V_R$ is the number of distinct words in a document of size $n$, and $K$ and $\bet...

The idea is to build a cybernetic body for a human. Only the brain and a few glands related to emotions, like adrenal glands, will be kept. The brain and the glands will be in a closed, plug-and-play, container, that can be connected to compatible bodies, to turn humans into cybernetic space elv...

I was reading What is the difference between republish, smart publish and incremental publishes? and now I'm wondering if I'm better running a republish (as I always did) or a smart publish on a new Sitecore instance. I had in mind that by running a republish I was skipping all the compares betw...

Sonic weapons are frequently used by military circles as non-lethal irritants to deter opponents. My question is; could a naturally evolved organism kill, or at least incapacitate, small prey using sound of some sort, and if so, how would it do this? I'm assuming a focused beam of sound, likely ...

In the beginning it was thought that the statement 1+1=0 is false, and necessarily so. However, with the birth of modular arithmetic, it was found that indeed, 1+1 does indeed equal to 0 (in the mod 2 setting). Now in the sciences for example physics, it's understood that Newtonian mechanics has...

Tu habites ici depuis un bon moment déjà. J'imagine que toi, tu connais la ville par cœur, à force ! I just picked up this phrase in conversation. Is it close in meaning to "forcément"?

so I was searching this forum, google, youtube and anything else imaginable but was not able to find a tutorial/an explanation for (maybe) something which looks quite simple: In this example you can see the arrows, which follow a curved path, yet, the stripes remain in perfect "parallel" order...

I’ve been following US news lately, and I'm quite confused about something that keeps coming up: why can’t grand jury testimony be released? William Barr and others keep mentioning that a lot of the Mueller Report can’t be released because of this being true. Does this apply only to testimony in...

As the title indicates, what is the use of option -o for command useradd? What is a good use case of this option?

I read somewhere (can't remember where, sorry) that depending on context, the plural of waste could either be "waste" or "wastes". In what context would one use "wastes"? For some reason, I always use "waste", both for singular and plural.

The simulacrum spell has a limitation, to try to prevent a caster from creating multiple duplicates: If you cast this spell again, any duplicate you created with this spell is instantly destroyed. However, the wish spell says: The basic use of this spell is to duplicate any other spell ...

The spell Holy Weapon empower a "weapon you touch" to do extra damage (2d8 radaint per hit) and shed light (30 feet bright light, 30 feet dim light). It has one final feature (XGtE, p. 157, bold added): As a bonus action on your turn, you can dismiss this spell and cause the weapon to emit a ...

I am confused with the "diode concept" in microwave frequencies. As far as I could read, I found that even small signal Schottky diodes have a non negligible capacitance, that may perturb the signal from 1GHz and more (well I've seen a few that work up to 20GHz but they require special mounting e...

In the second book of the Hitchhiker's Guide to the Galaxy series, contractors were told not to install a teleporter into a ship that's going to be sent into the sun. They did it anyway and put it in for 5x the price under "Sndry, explns." in the bill. ... the foreman had explained that the a...

I've had a teacher tell me that I needed to have 3 citations per paragraph in my paper. The paper is to be 20 pages long. Is this level of citation (over 200 individual in-text citations in the paper) too much for undergraduate work? The way that she phrased it left uncertainty whether this was f...

I was thinking about this and was wondering if my behavior is unethical - the information was public, and I didn't think much of doing so at the time.

The Arecibo message is a 1974 interstellar radio message carrying basic information about humanity and Earth sent to globular star cluster M13 in the hope that extraterrestrial intelligence might receive and decipher it... The message consisted of 1,679 binary digits, approximately 210 bytes.....

Sometimes it can be an annoyance that c++ defaults to allow slicing. For example #include <iostream> struct foo { int a; }; struct bar : foo { int b; }; int main() { bar x{1,2}; foo y = x; // <- I dont want this to compile! } This compiles and runs as expected! Though, what if I dont...

I had my first programming experience in the late 80s / early 90s on a Schneider (Amstrad) CPC 464 in Basic. I remember that when a program was running, depending on the current workload of the processor you could hear a faint buzzing sound from the integrated speakers. Especially when an empty...

I searched Google about this term, but the definitions that I found was related to the medical world, and nothing related to IT. I think that is some kind of procedure of documenting something maybe? Note that I heard this word for the first time in the SOC (Security Operations Center) that I am ...

I have two strings, e.g., s1="A|P|Q|Z" and s2="r|ss|t|yy", where "|" is meant to be a separator. I would like to get the result as another string s=Ar|Pss|Qt|Zyy by joining the corresponding parts of the two strings s1 and s2 as indicated by the separators. What would be a simple way to do this?

I hope this is not off-topic: How do you write things like this: The machine was tested in 5 3-players games, 2 4-players games... Or: five 3-players games, two 4-players games... I want to say e.g. that it was tested 5 times in games of 3 players, and so on.

The metric in sub-Riemannian geometry is often called the Carnot-Caratheodory metric. Question 1. What is the origin of this name? Who was the first to introduce it? I believe that the "Caratheodory" part of the name could be related to his work in theoretical thermodynamics [1], but I do n...

PAT1220-C-10DB-T5 is a 10dB attenuator. (This chip is just an example, it could be any other component as well). Can I simply connect 3 of them in series in a PCB design to make my cheap 30dB attenuator? I have a few attenuator modules with an SMA connector. One of them is 20dB while others ar...

I have a list with sublists list = {{1, 2}, {3, 4}, {5, 6}, {7, 8}}. I would like to reverse every other sublist, starting from the second one. The result would look like result = {{1, 2}, {4, 3}, {5, 6}, {8, 7}}. What would be a simple way to do this?

I tried to produce the following graph in Python. Does anybody have some idea how to produce it?

You can describe your inversions however you like. I think an ordered grid from the center (n,m) is easy to understand (doesn't matter where to start due to radial symmetry), or an image

Premise Inspired by the line of reasoning in this answer. There are a number of spells that have wording "when you cast" or "as you cast" included. Specifically, some effects have predicates like "when you cast" in order to come into effect. If wish does not count as casting the a duplicated...

Why does it seem that linearly polarized light does not always stay linearly polarized after reflecting off a mirror or beamsplitters set at different angles? What is this phenomenon? I have a source of linear polarized light (an Lcd) which I'm reflecting twice - once off a beamsplitter set at ...

is anybody aware of some smart-contract that can be used as external "trustable" oracle for no-so-simple scenarios, like for example calculating the number of non-festive days passed since a given date or time-windows. I'm thinking of some external (trusted) entity that is allowed to fill such c...

I am a little confused, is the mixture ratio of a propellant Fuel/Oxidizer or Oxidizer to Fuel ratio?

Phytoplankton are not to be taken for granted. Not only do they form the core of marine food webs around the world, they also release half of the world's oxygen. But phytoplankton, being plant-like organisms, need nutrients for their blooms to survive and thrive into populations large enough to...