All the vertices, except one (say $v$) of a $12$-gon are marked +1, and $v$ is marked $-1$.At each step, we can choose $3$ adjacent vertices and change their signs. Is it possible to have every vertex marked $+1$ except for one adjacent to $v$ ? I have tried to prove that it is impossible by sear...

After importing image as plane the image is not shown, it is just a gray plane. Thanks if you can help me :)

I know that both words mean "arm", but is there any real difference between 手臂 and 胳膊? When I started to learn Mandarin at university, they taught me to use 手臂, but now I see that 胳膊 is the one included on the HSK4 vocabulary list. Is there any difference regarding the "part" of the arm that they...

Hi I have created a tab name "Test Client" on the Account Object, beside the previously present Details tab. So there are two tabs on the flexipage of the Account Object == "Details" and new made by me "Test Client". As per the req i need my user on the click of the button should get navigated ...

The king of Nineveh decreed on people and animals! Jonah 3:6 When Jonah’s warning reached the king of Nineveh, he rose from his throne, took off his royal robes, covered himself with sackcloth and sat down in the dust. 7This is the proclamation he issued in Nineveh: “By the decree of the king an...

I'm going for a centered title and subtitle in the article document class. No matter what I do, I can only seem to get the subtitle to horizontally center, but never the document title. Can anyone help me horizontally center the "Flux Capacitors" title? I've tried a bunch of combinations of \begi...

I need the ability to generate random MAC addresses, so I wrote up a little function that does that: >>> random_mac() '7C:93:B7:AF:BA:AE' >>> random_mac() 'D8:D8:A0:D4:A5:3F' >>> random_mac(unicast=False, universal=True) '55:47:C6:EE:C6:2B' >>> random_mac(unicast=True, universal=False) 'FE:A1:4B:...

This is an answer-chaining challenge where every part of your answer should aim to be unique from every other answer. This question will work in the following way: I will post the first answer. The next answer will stem from that, and all other answers will originate from it. In this answer I wi...

In academia, there are sometimes sort of "feuds" between different researchers. For example, one such situation is described here: https://www.quora.com/Mathematicians-What-is-the-story-behind-the-feud-between-Shing-Tung-Yau-and-Gang-Tian?share=1 Lately, something like this has effected me. Peopl...

The first law says you can’t create energy. OK, but you can give energy to a ferromagnet and magnetize it. Then you can magnetize as many other ferromagnetic materials as you want, and not diminish the magnetic field of the first one you had. I don’t understand how there can be no loss and how th...

I making a presentation using beamer. My question is simple. How can I align 2 rows in 2 different part ? I have in the 1° slide this: Advisor: Prof. Latex Tex Co. Advisor: Prof. Tex Latex And this is the code: \\\small \hspace{-0.6cm} Advisor: Prof. Latex Tex \\\small Co. Advisor: Prof. Tex...

we use wordpress and civicrm to allow our members to register for sports events. I would like to display in an article for all authenticated member, the list of registered people to all of the week events. My first intention was to custom or create a public participant list that already exist but...

i'm beginner in programming and i'm looking for a nice idea how to generate some N integers that satisfies a condition example : we are given n = 30, and we've been asked to generate three integers a, b and c so that 7*a + 5*b + 3*c = n. i tried to use for loops but it takes too much time and i h...

While converting CFG to CNF sometimes it is suggested to add extra step. Add new start symbol S0 and add new derivation S0 -> S. Book Hopcroft Ullman does not suggest this step but many other articles suggest to add this step. What is purpose of adding this extra derivation?

I am using the following chacha20poly1305 Rust library to encrypt some data in a desktop application. The user provides the key, which never leaves their device, to locally encrypt some data, and then the encrypted data is sent to a server for backup purposes. This library requires a nonce in ord...

1.14 saw the addition of smokers and blast furnaces to Minecraft. Their main purpose is to speed up the smelting of certain items. Smokers are for smelting food, and blast furnaces are for non-food items. Right? Apparently, I was wrong. I just tried to smelt sand to make it into glass. It wasn't ...

So I am a single individual and do not have access to any university schemes related to my issue. I would like to be able to use my wacom device (an pen that allows me to write down on the computer) so that I am able to handwrite equations etc to my students. I also need to be able to conference ...

This is something thats really bugged me since I've graduated. We programmed PIC16f877a micrcontrollers in class but never got into the how it works, just the make it work. So let's say I write a program that makes LEDS flash in a specific order and send this program to the microcontroller throug...

Background For a pair of games I am working on, I'm trying to work in a VERY basic evolutionary timeline for a lot of the more mythical creatures to set up design language of some of the creatures. This timeline will give me an idea of which creatures are related to which in order to help guide t...

I always wanted to teach my siblings mathematics, and one, ten years of age, is particularly eager. For the purposes of specializing recommendations, I will add he can use arithmetic up to exponentiation. Over time, I have become increasingly afraid of his curiosity and love for mathematics being...

I saw in my textbook that a field can only be conservative if it happens to be spherically symmetric. Why is this so? Is there a good proof for this?

The vanishing point seems to be at the center of the frame, where the parallel lines seem to meet. I am wondering why the parallel lines of the semi arch are pointing down. Any pointer would be helpful. Please excuse my ignorance. Thank you!

Sauron sounds and looks so similar to the greek word σαῦρος, or latin corresponding word saurus, which means lizard. Is this just a coincidence, or there is a (known or speculated) reason behind Tolkien's choice of this name?

I am reading a book with different quizzes about coding interviews. Please implement a function that increments a string based on the rules below: It should take the string of unknown length and increment the numberic ending of that string by 1. If numberic ending is overflown it must be reset. ...

I once saw the expression "to shadow" being used to say that something makes another thing unnoticeable because it attracts more attention, but I can't find a definition for this expression that fits this. Example: Famous singers shadow other artists that try to make a living... Does this sente...

Luke 10:4 (NASB) Carry no money belt, no bag, no shoes; and greet no one on the way.

router/article.js // =============================== GET / WITH PAGINATION ============================== router.get('/?:page', async (req, res) => { const { page } = req.params; // current Page const { size } = req.params; // items per page const limit = size || 5; // if size isn't specif...

I have a requirement to perform a series of GeometricTransformation[]s using the AfineTransform[] function. I use these to set up something similar to a kinematic chain in something similar to a mechanism. Four geometric objects are stored in a list, say fList={f1, f2, f3, f4} and four affine tra...

I have the following code: \documentclass{standalone} \usepackage{tikz} \usetikzlibrary{math,arrows.meta} \begin{document} \tikzmath{\radiusarrow = 3; \radiusmax = 4;} \centering \begin{tikzpicture}[>=stealth] \draw (0,0) circle (\radiusmax) ; \foreach \ang/\lab/...

A paddle is a sort of input device, common on early video game consoles and home computers, consisting of a handheld wheel with one or more fire buttons. Unlike dial boxes, which spin freely, paddles rotate through a fixed arc, with stops on each end. Atari Paddle by Miguel Durçan. Licensed und...

I am planning to buy an upright acoustic piano in the future. But before I do, there are some points I need to clarify. I initially did not want to buy an acoustic piano, because I was afraid of all the care it required (tuning, humidity, temperature, awkward family members, animal, etc.), but th...

I am building an irrigation system, and to make it short, I need to decouple the electric-valve to the Raspberry. I am so using the following relay. It works fine, but it is active LOW, for my use case I would prefer something that works the other way round (active HIGH). Can you suggest me one,...

Ao ler o livro "O Silmarillion", de J. R. R. Tolkien, percebi que, no conto "Quenta Silmarillion", a maioria dos subtítulos começam com a preposição "de". Alguns exemplos (em ordem de aparição no livro): Do Princípio dos Dias De Aulë e Yavanna Da Vinda dos Elfos e do Cativeiro de Melkor De Thing...

I have a table where I would like to pull everything besides the max dates for each groupID. Is there an easy way to do it? here is what i am trying to do: SELECT groupId, Types, MAX(Dates) as date FROM TableData Where Dates < Max(dates) GROUP BY groupId, Types //The table looks as follow...

Are there any databases or search filters for published peer-reviewed articles, particularly concerning environmental issues, that are neither affiliated with nor funded by corporate interests? I am trying to find peer-reviewed articles on the history and impact of plastics pollution. Most articl...

I want to generate all the possible combinations of nonadjacent elements in an array. For example: array_a <- c("A","B","C") possible combinations would be : AC and CA How can I implement this in R?

I'm new to bitcoin and want to help the network by running a full node. I plan to download bitcoin core from the bitcoin.org website, and run it on a spare laptop, by my concern is how do I protect my machine from attack? As I understand it, my IP address will be visible to see. Do I install spec...

I am having trouble adding a point to mark the Min values of each parabola when using the Manipulate command? Manipulate[ Plot[x^2 - 2*(a - 2)*x + a - 2, {a, -20, 20}, PlotRange -> {-200, 200}], {a, -10, 10}] This gives me the parabolas but how do I get a vertex point visible as it moves wit...

I see that a lot of proprietary projects which make their source available operate with dual licensing model, with the open source version being licensed under GPL v3 and proprietary product being, well, proprietary. The rationale behind choosing GPL v3 is to often exclude other commercial entiti...

Picking up the thread of analyzing beautiful structures involving participles in Cicero's works (e.g. see this link), I'd like to raise a question about the syntax of the following complex sentence. To put it in the words of Wightman and Knapp (1934: 206): "here is a sentence to diagram!". Cogit...

In a RAID 1 config with MDADM, which device is the master device during the initialization process? In a RAID 1 config with 2 devices, presumably (?) one device acts as a master and the other as a slave when the initial sync process between the two devices is done. (To make the binary data the sa...

I am studying QFT. My question is as the title says. I have read Weinberg and Schwartz about this topic and I am still confused. I do understand the meanings of the words "Poincaré group", "representation", "unitary", and "irreducible", individually. But I am confused about what it means for it to "

I'm learning Vue today. I want to recursively use a Vue component for each item in a multidimensional array, which is a list of topics. For example, Topic 1 can have subtopics 1.1, 1.1.1 and 1.1.2, but topic 2 might have no subtopics at all. (My working code is presented at the bottom) My Array i...

I've been looking at the CASA RPA rules (specifically under 250g and under 2kg non-commercial) and there doesn't seem to be a section on fixed-wing aircraft. Do the rules for 'drones' (for instance these) apply to fixed-wing aircraft. I assume they do but I just want to be sure. I'm trying to get...

I am a professional tour director and my work takes me all over the world. I currently live in the United States but I would like to move to Italy. It will take some time for me to get an permanent visa but my work would probably ensure that I am not in Italy for more than 90 days in an 180 day...

A SPECIFIC CASE: Any prime number can be classified as either $p \equiv 1 \pmod 3$ or $p \equiv 2 \pmod 3$. If $p = 3$ or $p = 1 \pmod 3$, then the prime $p$ can be represented by the quadratic form $ x^2 + 3y^2, x,y \in \mathbb Z.$ But what if $p \equiv 2 \pmod 3$? Is there a quadratic form $ax^...

In the following posts and many other besides [0] [1], I've seen people use \vec{\mkern0mu x}, \vec{{} x}, and variants thereof to adjust the vector arrow's kerning. How do these work? What's the difference?

My understanding is that gigabit ethernet over twisted pair, 1000Base-T, is full-duplex by default. Does that mean that the actual bandwidth, can be 1 Gbit/sec in each way simultaneously, hence 2 Gbit/sec counting both ways? In comparison, wifi is half-duplex on each channel, meaning a 800Mbit/se...

I'm having difficulty proving undecidability of "is this CFG prefix-free?". (this proof is given as problem 5.32b in Sipser 3rd edition). Another thread has the very different question "is this regular language prefix-free". One of the answers in that thread claims to prove undecidability for CFL...

Equipment : Nikon D7000, Godox Flash on camera with soft box diffuser. Background: I have been assigned the task by my family to make portrait albums of the identical twins born to my close relative. The pics I have taken are all indoor. flash pointing towards baby straight (power of flash (1/128...

We are going to be remodeling our basement into livable space. My wife is drafting out the plans and before we try and get a permit, we want to make sure this will work for the breaker box. It was originally going to be in the laundry/bathroom, but I realized the box couldn’t be in a bathroom. Sh...

Just had my website re-done and am trying to set up redirects in the .htaccess file for links that have changed This works fine, except it doesn't work for /example/ (with trailing slash on source path) Redirect 301 /example /example.php So I added this to account for the trailing slash: Redirec...

I'm trying to power a Raspberry Pi 4 via a 6-AA battery pack via buck converter which steps it down to 5V but it gets stuck in a reboot loop on boot up. Watching the display on the buck converter, the voltage dips below 4.6V and the red light goes off on the RPI and it reboots again (I only get a...

All of my Linux machines, servers and laptop/workstations, were running Enterprise Linux under the Scientific Linux distro from Fermilab/Cern. With the demise of that distro (no SL8), we weighed our alternatives and have elected Ubuntu LTS. The machine from which I am posting this is a mobile wo...

I was reading my textbook and I encountered a section where it explains that Centripetal Acceleration is not constant, thus, I wonder if jerk exists in Uniform Circular Motion? The textbook states that it happens due to the continuous change on the vector's direction. So, pretty much. Does jerk m...

I'm creating a 16-bit ALU that has to perform logical AND, logical OR, addition, subtraction and rotate left one bit. I have everything working perfectly except the rotate left one bit. I think I need to implement this at the 16-bit level instead of inside the 1-bit ALU, which I've chained togeth...

Among one of the earliest questions people learn to answer when studying Chinese is 你家有几口人？ How many people are in your household? However, despite living in China for years, I don't recall a Chinese person actually asking this question outside of Chinese class. In fact, if we Google "你家有几口人？"...

I was reading some sentences in japanese to practice and I came across this sentence: 何を好きになろうと、誰と話そうと According to google traslator it means something like: "no matter what you like or who you talk to" If the translation is right, what would be the difference between that and (何,誰,etc)+the ver...

There is a round table with 16 seats, each seat labeled with 1 to 16 in clockwise order. Also, there are 16 people, each of whom is assigned a unique integer between 1 and 16 inclusive. Now, the 16 people are asked to sit around the table, so that no one sits at their own label and, even if the ...

How to say 公德心 in English? I am not looking for explanation. I am looking for translation. Similar words for 没有公德心 is selfish, thoughtless, disregard, and don't care about other people. But none of this relates to public and social order, and none of this is a virtue. Is there a proper and popula...

In the following sentence, can you replace every dash (-) with a character so that the sentence makes logical sense? An ----nym is an ----nym of an ---nym.

I'm not asking about the origin of this minhag. I'm inquiring of the purpose of the actual beating of the aravot on Hoshanna Rabba - i.e., the action, itself. What does the hitting of the aravot represent or do and what is its connection to Hoshanna Rabba specifically?

I want to overwrite the maximum charcater limit to 320. It is defined in /core/lib/Drupal/Core/Render/Element/Email.php Can anybody tell me how to overwrite it?

I am developing a web app and wanted it to be secure from attacks from the application layer. Currently, my website is allowing interception from Burpsuite like certificate proxy software. Is there a way to block requests from frontend whenever we run the website on an insecure certificate? If th...

I mean no asteroid, planetoid that i´m aware of has water on it´s surface, it´s way more common to see ice in it. So i figured that the size of the celestial body has something to do with the cycle of water does this theory hold true? Do exoplanets with water have to be similar size than earth? t...

Previous Level: Nurikolor (Level 2) Next Level: Nurikolor (Level 4) Level 3 has arrived, and the grid gets larger, now being an 8x8. The rules still apply. There are colored numbers on the grid, which indicate the number of tiles the group of its color holds. There are tiles with 1 color, whic...

I use the same preamble in several projects. The set of already-defined commands is different between the environments. In one project, \eps is already defined, whereas in another it is not. I wish to define \eps as \varepsilon. The Latex2e unofficial reference manual says: If you try to define ...

A couple examples: Fireball does 1d6/level up to 10d6. If you're 10th level, can you cast fireball, but have it only do 1d6 damage (or 6d6 since you wouldn't get the spell until lvl 6) Another example: Kineticist's Kinetic Blast. It's basically a cantrip (but its actually a Spell-Like Ability) ...

While reading my NCERT chemistry book (Pg no.-300), I came across a table that mentions colors emitted by alkali metals and corresponding wavelengths. It mentions that Potassium emits violet color(As far as I know it's more close to lilac) but corresponding wavelength written is 766.5 nm (I mea...

Answers to What forms of water ice have been observed and verified in the solar system? tell us that there are several. Answers to Is Mohs scale of mineral hardness applicable for rocks and minerals of terrestrial planets other than Earth? (especially @OscarLanzi's) remind us that conditions in t...

This is a harder variant of Super-derangement on a round table. There is a round table with 16 seats, each seat labeled with 1 to 16 in clockwise order. Also, there are 16 people, each of whom is assigned a unique integer between 1 and 16 inclusive. Now, the 16 people are asked to sit around the...

I was recently rereading Too Many Magicians (A Lord D'Arcy novel) by Randall Garrett and the introduction said that there were punnish references to The Man From U.N.C.L.E.. Of course the Nero Wolfe references were obvious, but I could not identify the Man From U.N.C.L.E. puns. Can someone help w...

I will start by saying I have gotten this to work, and the question is about how improve the script to make it better/faster. I need to compare a series of files to each other. Let's say I have the below files: filename0 filename1 filename2 What I have done is: Z=0 # Beginning number Y=2 # F...

Suppose that P != NP. Then there exists 3SAT formulas such that their satisfiability is computationally "evil" (i.e, the satisfiability can be exponentially hard to determine in the size of the formula). Primality testing can be reduced to the satisfiability of a multiplication circuit, which can...

I have set up a full node with bitcoin core running on the internet. I have also set up a wallet running on a private machine that communicates to the full node to broadcast new transactions. To enhance privacy, I plan to enable Tor on the full node. However, it is not clear to me how to use To...

Java has a game mode titled "Spectator" where one view the world as a ghost-like form, going through walls and able to "possess" players' bodies and see what they would see on their screen, without the person being able to tell. Can the "Spectate Player" part be obtained in Bedrock Edition?

One day on planet Earth, for reasons that are not immediately apparent to the population, all natural sources of oxygen production stop producing oxygen. No new oxygen is output from any natural source, whether it be on land, from the oceans or elsewhere. How long would it take for: Humans to no...

I have to do a flow of home-work trips. The base of my work is a geographical layer of cities an OpenStreetMap map of French cities that has their shapes and cities codes (named : INSEE) : The second source, an attribute table with the list of the trips it's a normal SGBD table named deplacement...

In Frank Harrell's Regression Modeling Strategies, he states: The ordinary linear regression model is: $$C(Y|X)=E(Y|X)=X\beta$$ and given $X$, $Y$ has a normal distribution with mean $X\beta$ and constant variance $\sigma^2$. The binary logistic regression model is: $$C(Y|X)=Prob(Y=1|x)=(1+exp(-X...

(∀y)(∃x)Ryx How do we know if this argument is true? Is it as long as it has some instances where it is true or must it be all? In other words, how can we identify the main quantifier? Which quantifier - the existential or unviersal - takes precedence in this case and how can we know for other ar...

I would like to add a full-page sized image before the title. However, when using the code below an empty page appears after the image and before the title. If I change the document class to article, the empty page does not occur. How to remove this extra page in book class? \documentclass{book} ...

My friend translates technical documentation from German into French. All the German documents are written using the passive voice. e.g. "The switch must be set to the 'off' position". This is company policy. When she sends the French translation to the Paris office for confirmation, there is oft...

My previous implementation: My queue implementation (in C) I rewrote the queue following @vnp's suggestions. Here is the second version of it: Any suggestions or tips are appreciated :) (even tips about spacing/naming code) (The client must malloc() the data needed to be inserted into the queue, ...

Previous Level: Nurikolor (Level 3) Level 4 introduces a 9x9 grid, but we still have 8 colors to work with. There are colored numbers on the grid, which indicate the number of tiles the group of its color holds. There are tiles with 1 color, which indicate the color of the tile. There are tile...

Can we check DE count based on specific field in same DE? For Example : If Date= today() If DE_Count > 1 set @Subject= "hello" else set @Subject = "Thank You"

But the Palantir of Orthanc the King will keep, to see what is passing in his realm, and what his servants are doing. For do not forget, Peregrin Took, that you are a knight of Gondor, and I do not release you from your service. You are going now on leave, but I may recall you. And remember, dea...

So, I've been asked to make a GAL-like PCB that can be 'manually programmed' without need of soldering for an educational setting. Meaning, I have signals coming in ('horizontally') that can be linked up to a wired AND ('vertically') by means of some connection, those ANDs then being linked up by...

I am using this this desktop Multimeter - 6 and half multimeter Whenever I measure a voltage or current in the auto mode, the last three digits continues to decrease and keeps on decreasing till the fourth digit also decreases. For example, if I measure a diode drop to be +0.805919V at time t=0, ...

I have a Arduino which I would like to use to control a 12v PWM fan for speed control. I know about the 0-3.3v to 0-5v logic level shifter, is there a similar option for 0-5v to 0-12v? Or is there a circuit using a IC that I need to make? Thanks in advance for your help.

The Talmud says: חכם קודם למלך ישראל חכם שמת אין לנו כיוצא בו מלך ישראל שמת כל ישראל ראוים למלכות -- A Torah Sage comes before the king of Israel, because if a Sage dies, we have no one like him to replace him, but if a king of Israel dies, all of Israel are fit for royalty. [Horayot 13a] Doesn...

I am closely working on /etc/hosts file in Linux. I have designed some operations for /etc/hosts file like add, modify and delete. I have read little about /etc/hosts and got to know that it contains <IP> <FQDNS separated by space>. My question is: can lines in /etc/hosts have only IP address ent...

I have been advised, that I can put salt into a trap to prevent the water from freezing in building I do not use much during tough part of the winter. I know I need to remove all water from pipes where possible, but I would like to avoid manually sucking the water from traps, especially from toil...

I am looking for a comprehensive list of known forcing notions which add a minimal real into the ground model. I know some of them like the Sacks forcing, or the Judah-Shelah's example of a c.c.c. forcing which adds a minimal real (and a few more). Question. What are other known (or less known) ...

I'm developing a "corporate" DApp, therefore the employee don't have any reason to "spend" their ether/gas for interacting with the contract... Is there any way to enable each transaction to be Auto-paid by the contract itself? If not how would you address this problem? I cannot pass ETH to emplo...

I have successfully created a sub menu which extends the Shift+A menu in the shader editor but I would like to have the options show up as results in the search bar. Is this even possible, and if so how can it be done? import bpy from bpy.types import Menu, Operator def draw_menu(self, context...

I tried it a lot but am not able to get this.Pls help in how should I think when solving this type of question and which side is better to try to simplify first (LHS or RHS).Please share the solution in that way. $$ \frac{1-\sin A}{1+\sin A} = 1 + 2 \tan A \left(\tan A - \sec A \right) $$ One of...

I seem to have $\langle\varphi|\frac{d}{dt} \varphi\rangle$ for any ket $|\varphi\rangle$, which I doubt very much... For any quantum state $|\varphi\rangle$, we know it's normalized and therefore $\langle\varphi|\varphi\rangle = 1$. Now $$\frac{d}{dt} \langle\varphi|\varphi\rangle = 2\langle\var...

This story was in one of the first SF anthologies I ever read, in the mid-1960s. A meteor lands near to a house. The householder finds it and carries it into his house (meteor is grapefruit/football sized). It’s actually a crashed spaceship, crewed by beings the size of beetles or cockroaches. Th...

We refer to Chapter 8 of the book Tensor Categories for the notion of modular tensor category. The only finite groups $G$ I know such that $\mathrm{Rep}(G)$ is Grothendieck equivalent* to a modular category, are the abelian ones (Example 8.13.5). I wonder whether there are non-abelian ones. The p...

I'm looking to buy my first tri bike and am considering between a Cervelo 2016 P2 (rim-brake) and the new 2021 P-Series (disc-brake). The P2 is brand new, but it's an old stock my LBS has on hand, and would cost me about $1k less than the new P-Series. Should I get the P2, given that it's much ch...

A Banshee (MM, p. 23) has the Wail action: Wail (1/Day). The banshee releases a mournful wail, provided that she isn’t in sunlight. This wail has no effect on constructs and undead. All other creatures within 30 feet of her that can hear her must make a DC 13 Constitution saving throw. On a fail...

I have a problem with final rendering, which is different from what I can see in the viewport. Previous replies to similar topics don't help, nothing changes. It shows some addidional noise and looks totally awful, I have checked the color management settings and everything seems to be ok, but I'...

The task In this challenge, you are given a number and a list. Your task is to remove from the list all occurrences of the given number except the first (leftmost) one, and output the resulting list. The other elements of the list should be left intact. The number will be a positive integer belo...

+-----+---------+------+----------+--------+ | Day | Outlook | Temp | Humidity | Beach? | +-----+---------+------+----------+--------+ | 1 | Sunny | High | High | Yes | +-----+---------+------+----------+--------+ | 2 | Sunny | High | Normal | Yes | +-----+---------+------+---...

Among potential complements are some ending with 得起. Some examples (from here and here) are: 这家餐厅太贵了，我们吃不起。 This restaurant is too expensive. We can't afford to eat here. 我们吃得起龙虾。 We can afford lobster. 这些化妆品很贵，我用不起。 This makeup is very expensive. I can't afford it. 我们用得起电。 We can afford elec...

I'm learning Chinese from a book, and there are some examples regarding the use of 还是. In some cases, the verb is repeated, like in 你喝茶还是喝咖啡？ (note the two 喝 here). In other places, the second instance of the verb is omitted, like in 他学习日语还是英语？ Is this a question of preference, or there are some ...

My two main ones are Electrostatic force field $\mathbf{E}\left(\mathbf{r}\right)=\frac{Q}{4\pi\epsilon_0 \left|\left|\mathbf{r}\right|\right|^3}\mathbf{r}$ and Gravitational force field, $\mathbf{F}\left(\mathbf{r}\right)=-\frac{GMm}{\left|\left|\mathbf{r}\right|\right|^3}\mathbf{r}$ but I'd lik...

On a billiard table of 1 by 2 meters lies a billiard (snooker) ball, with a radius of 52.5 mm, separate from the sides. It is pushed away without effect and then it rolls 3 meters. How many times could the sides of the table have been hit at the most?

Today in our team we faced interesting issue. One of my colleagues wanted to learn basics of some technology which is about to be used in the project. How such an activity should be handled in scrum framework? Learning task doesn't produce business value. It can't be estimated - for some who know...

I am given the sequence $a_0 = 0$, $a_1 = 1$, and for all $n \geq 2$, $a_n = a_{n-1} + 2a_{n-2}$. I must prove that if $3 \mid n$, then $3 \mid a_n$. By logic, if $3 \nmid n$, then the conclusion $3 \mid a_n$ is automatically true. So, I should only prove that $3 \mid a_n$ is true for multiples o...

There's this huge misconception in the more creative industries, like art and writing, that creators that do not yet have an established reputation (and even some who do have one) don't deserve to get paid for their work and should instead be content to work "for exposure", as in "people will see...

Through a peculiar course of events with a touch of homebrew, my cleric got to learn the spell Armor of Agathys. As a regular user of the Sanctuary spell, I wondered how these spells would interact in the following situation: Casting Sanctuary on myself as soon as fight starts Casting Armor of A...

I have aftermarket aluminium rims for my car, which were manufactured to fit multiple vehicle models. Therefore, the center hole is bigger in diameter than the hub of my car, and the rims came with a plastic adapter ring that clicks into the center hole. Now I am wondering what would happen if I ...

I need to retrieve the field value given subject. But the only way I find to do it is by doing a dynamic query in a For or loop. Did anyone have a solution to avoid the query in the loop? Or any other workaround Map<String, List<String>> AllAPINames = new Map<String, List<String>>(); list<String>...

In normal years, when I teach in a physical classroom, I teach in sessions of ~90 minutes, with ~30 minutes break. This year, all teaching is done via Zoom (in real-time), and I wonder whether I should split each lesson into a larger number of shorter sessions, for example, split each 90+30 sessi...

I know Linux has some limitation for number of groups a user can be part of those, I find out it is 16 groups for each user it depends on linux kernel, However I'm going to know is there any restriction for number of users can be part of only one group? for example if I create a "book" group in D...

Wigner's friend thought experiment mentions that there is an apparent paradox - 'when exactly did the collapse occur?'. Whether it occurred when the friend made the measurement, or when Wigner asked about it. Why is it different than if I flipped a coin and observed the result, but hid the result...

I am a bit confused when it comes to asset swap spreads of fixed rate bonds vs the same issuers floating rate bonds of the same maturity and issued at the same time. Should these not be comparable (if not exactly the same)? My senior tells me that that is not exactly the case, and that it depends...

Context: I have recently started a campaign with a new player that comes from AD&D background. He wishes to convert and import his character to the campaign. We do that once, I help him with the conversion and checked his stuff, he got 2 magical items lvl3 a bit much but I didn't mind they were n...

I'm trying to find a point on an edge closest to 3d cursor with .intersect_point_line() but I'm getting a wrong point as a result, here I create an Empty in the result coordinate. What am I doing wrong? When I'm printing out the results the distances are correct but it looks like verts indices a...

I have a self signed certificate that was generated on a Windows 10 machine using the Powershell command: New-SelfSignedCertificate -DnsName ServerNameHere -NotAfter (Get-Date).AddYears(20) -FriendlyName "Test API Cert" -CertStoreLocation cert:\LocalMachine\My I exported this certificate with a...

Most of the time my 6YO daughter is quite happy and fully of energy. However when minor problems occur she over-reacts. i.e. falls down on the floor with her head in her hands and wails and cries. She's behaved this way for the last few years. This happens on average about once per day. Example t...

I'm learning about transposing instruments, and now I'm looking at Dvorak's 9th symphony. In the second movement (Largo) I don't understand the key signature of the clarinet in A. The first movement is written in E minor (1#) and the clarinet in A has two flats in its key signature (G minor). I k...

E or E7 chords seem to work very well in the key of C, particularly at the end of a line/verse before a powerful chorus for instance. As one example I end a verse on Am - E... hang on the E then jump into a chorus line F - C - G - Am. Clearly Em is the minor 3rd chord but musically, what is E or ...

I'm trying to run bwa on HiC data. This is the command I'm giving: bwa mem -5SP -T0 -t4 -R '@RG\tID:\tSM:\tLB:\tPL:ILLUMINA\tPU:none' REFERENCE.fa PAIR1.fq PAIR2.fq and here's the error message: mem: illegal option -- 5 Supposedly, the 5SP option is for HiC data (cite), but my BWA isn't recogni...

An abjuration wizard has the Arcane Ward class feature (PHB, p. 115): Starting at 2nd level, you can weave magic around yourself for protection. When you cast an abjuration spell of 1st level or higher, you can simultaneously use a strand of the spell's magic to create a magical ward on yourself...

The possession ability of a ghost (DnD 5e) states that it can possess one humaniod it can see within 5ft. I interpreted that a ghost could use its possession ability from the etherial plane itself, since the ghost is visible on the material when in the etherial plane and as such can see the creat...

An abjuration wizard has the Arcane Ward class feature (PHB, p. 115): Starting at 2nd level, you can weave magic around yourself for protection. When you cast an abjuration spell of 1st level or higher, you can simultaneously use a strand of the spell's magic to create a magical ward on yourself...

Given t1 = {{1, 2}, {3, 4}}; t2 = {{a, b, c}, {e, f}}; I want to add in succession elements of list 2 to list 1 to get: {{1, 2, a}, {1, 2, b}, {1, 2, c}, {3, 4, e}, {3, 4, f}} I can do it by: Flatten[MapThread[Flatten /@ Tuples[{{#1}, #2}] &, {t1, t2}], 1] as indicated in Thread over list in...

Q. Find the number of different committees of $5$ that can be chosen from $7$ boys and $5$ girls, if they include at least one of each sex. My logic was $(7C1)$ [choose at least 1 boy] times $(5C1)$ [choose at least one girl] times $(10C3)$ [the rest]/ I know the correct was could be $(7C4)(5C1) ...

Going by rules strictly about the board state, how long can a player theoretically hold off a draw by the 50-move rule? White will play as long as possible, and not want to lose. Black will claim a draw as soon as possible, if not win, so threefold repetition and dead position apply. Here is my s...

The equation part (ignoring the text) won't center horizontally. Here's my code \begin{align*} a_{3k+3} & = a_{3k+2} + 2a_{3k+1} \\ & = a_{3k+1} + 2a_{3k} + 2a_{3k + 1} \\ & = 3a_{3k+1} + 2a_{3k} \\ & = 3a_{3k+1} + 2(3m) \hspace{5mm} \text{(by the Induction Hypothesis)} \\ &...

In my campaign (DnD 5e) I would like to send players on a quest to save a kidnapped person. The person has high value information. He/she was ambushed and taken prisoner. My question is: is there a logical reason for sending a person to deliver a message instead of using 3rd level spell Sending? ...

I found this paper on Grandpa's desk with a bunch of letters, big and bold, with a question: Which two letters come next in the sequence? He even wrote down four choices Which two letters go next? Curiously he had scribbled at the bottom: " I don't think I can go any further in this sequence" ...

$\DeclareMathOperator{\Ch}{\mathit{Ch}}$Let $\Ch_\mathbb{Q}$ denotes the model category of chain complexes over rational numbers. Let $T_\ast$ be a tree in $\Ch_{\mathbb{Q}}$ with $n$ vertices. How to classify trees with respect to weak equivalences i.e., chain homotopies? Is it true that the cla...

One of my friends has become a distributor (I guess) for an ISP. He asked us to buy our internet plans from him. What exactly will he be able to see that I do on the Internet? He can see that when our router is On and connected to the Internet. This got me worried. SO, I have a few questions: Ca...

In emails or in virtual meetings: It can be helpful to repeat oneself to add clarity to a conversation. However, I find when I repeat myself, I often come off as condescending, when really, my intentions were earnest: “Like I said...” “Again, ...” “As mentioned earlier...” “I think we’ve discuss...

On an x86 chip running in Real Mode, interrupts are resolved with the help of the IVT (Interrupt Vector Table), which is an array located at address 0000h:0000h that consists of 256 entries, 32-bit addresses (segment + offset) that point to the interrupt handler code. This page (along with many o...

I'm new to PyQGIS and I'm stuck here. So I've created a ComboBox so the user could select which layer he wants to work with. Everything's fine so far. I've also added all layers but now I'm having issues to filter the output in the 2nd ComboBox. for layer in QgsProject.instance().mapLayers().val...

I used the attrib command to super-hide a file, something like this- attrib +s +h example.txt Is they any way to recover this file without knowing the file name and/or the directory? I mean is there any way to unhide these files like the normal hidden files (which we can do from the View tab in ...

Hi Latin Stackexchange for my masters thesis I am transcribing a 16th century Dutch manuscript about alchemy. On folio 172r there are some Latin words and a Latin sentence. Can someone help me transcribe that Latin? I struggle a lot with the abbreviations used, and not knowing a single letter Lat...

I paid the stock exchange $1200 for 10 shares of Apple. Do I get to keep these shares forever? Is there any chance that the stock exchange could use some powers of eminent domain to take away my shares and pay me a small compensation? I want to keep my Apple shares. I don't want the stock exchang...

After switching to the unicode-math package, the amscd package for commutative diagrams doesn't work anymore. I do not get error messages, but the symbols like @ and < are displayed in the output. I attach an almost minimal example, which worked before. \documentclass[12pt]{article} \usepackage[T...

So I wrote a rather primitive login logic in Node.js, which authenticates the user and handles JWT. Is it any good in terms of security, efficiency, building, async/sync, logging. SECURITY is my main concern. On in a prettier format the question would be: SECURITY: Is my website secure in any wa...

“Fruit from Panama about 20 times.” ... the answer I have is STRAWBERRY based on other letters and fruit. Is the Panama straw hat involved? And what does “about 20 times” refer to??

The developer of the well-known emcee package often gives this advice to help with chain convergence: Run a short (few hundred steps) chain Reinitialize all the walkers near the point with maximum log probability seen so far Return to step 1 a few times Then run your final chain starting where ...

Background Recently, I have been having some issues with a product. To sort this out, I sent an email from my company account (I live and work in an English-speaking country) to the manufacturer's customer support (the manufacturers is also based in an English-speaking country, as far as I am awa...

The goal is to find a sequence (a "program") of max 5 commands that will move the triangle (the "robot") through the grid and make it visit all the squares marked with a star. Two types of commands can be used: P0 makes the sequence start over. The arrows (↑, ↱, ↰) move the triangle (forward) o...

My teacher who teaches "Logic" at the university told us a story about Intel processors, which goes: In the 90's Intel had a bug in the calculation of mathematical functions like sin/cos encoded in the processor. This bug created inconsistencies in some bank accounts, bringing Intel to hire logic...

I have to support an old WordPress site running on Apache web server. To make things safer, this Apache server is in a Docker container, and it is accessible to the world via Nginx reverse proxy configuration. This site is currently served via http, and I'd like to move it to https. I think I hav...

Reading the book "Supergravity" from Freedman & van Proeyen I stumbled over the assertion that in 3D GR the vacuum solution $R_{\mu\nu} =0$ leads to a vanishing 4-rank curvature tensor $R_{\mu\nu\rho\sigma}=0$, therefore there are no gauge invariant degrees of freedom in the 3D GR vacuum case (I ...

I am not sure if my following example is good for creating equations with notes of current mathematical operations: \documentclass{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \begin{document} \begin{align*} x \cdot 5 &= 5 && \lvert \; \div 5 \\ x &= 1 \end{al...

Here's another tetromino minesweeper. I have bolded where the rules differ between this one and my first tetromino minesweeper Rules: A number indicates how many adjacent (including diagonally adjacent) cells have mines in them. Mines cannot go in numbered cells. Mines must be grouped into tetro...

My man page for 'whatis' does not match others I have found online. Namely, no options are available to use with it. /home/User$ whatis -d ls whatis: -d: unknown option uname -srv Darwin 16.7.0 Darwin Kernel Version 16.7.0: Sun Jun 2 20:26:31 PDT 2019; root:xnu-3789.73.50~1/RELEASE_X86_64 My f...

so I am extremely new to Mathematica and currently doing a project that involves calculating a specific function of the Farey Fractions. That is given an interval $I: (0,\alpha)$, I want to calculate the number of distinct pairs $i$,$j$ s.t $i-j$ $\in I$ in a normalized list of farey fractions. T...