I cannot work out how \if:w works and LaTeX3's manual does not show any example on how to use it: I want to check whether the document is currently in oneside or twoside mode: \if@twoside Twoside mode \else Oneside mode \fi LaTeX2 works but I cannot convert it to LaTeX3 code; my current ...

If I consider the Einstein equations into the form $$ R_{\mu\nu}=\kappa \left(T_{\mu\nu}-\frac{1}{2}g_{\mu\nu}T\right)+\Lambda g_{\mu\nu} $$ and then linearize them, we should get by moving to harmonic coordinates $$ \Box g_{\mu\nu}=\Lambda g_{\mu\nu}+\text{terms}. $$ Therefore, the cosmological ...

I have submitted two manuscripts on physics both have analyzed a new finding by me but the methods of the "analysis" are different. They differ in data, results and figures, just at the end, the both are saying that; for example: X is better than Y. Is this ethical?

Keyboard Ping Pong This question was inspired by this post from CaucasianJames on X. Challenge Given a string of letters, determine if the word "ping-pongs" across the keyboard. (Letters alternating between sides of the keyboard) Use any established Latin-script keyboard layout that you would li...

I've been just wondering how many Wumpa fruits there are per box in Crash Team Racing Nitro-Fueled. Sometimes I get nine from a single box, and sometimes I get only four. Is it specific? Or does the game just randomly pick a number from 4 to 9?

I'm working on a new character for a campaign I'm rejoining. He's being asked to steal something from the party. He has no loyalty to the ruler who asked him to do this, so I thought perhaps his motivation would be that she told him the item would reverse the negative effects of a magical item sh...

I want to fly from Source (SRC) to Destination (DST). They are far, and have no single airline servicing both airports. So, I was thinking that it would be a good opportunity for me to visit Middle (MID). I can see 2 ways of pulling this off. Book a round trip ticket SRC<->MID from the airline f...

a sentence like " 彼氏がいる" in spoken i can't diffrentiate between " i need a boyfriend " or " i have a boyfriend " i'm thinking that 要る can't be used for people but just objects, if so what should be said instead to mean " i need a boyfriend "

After several of my existing worldbuilding projects hit dead ends, I needed a new setting to work on, so I thought I'd try a post-apocalyptic one. The problem is that I can't decide what kind of apocalypse I want. That said, I do know I want the apocalypse to be scientifically plausible; Random a...

Why are metal ores dredged from coastal lagoons rather than being extracted from the mother lode? I want to arrange a situation where the easiest /cheapest way of obtaining metal ores is by dredging them out from the bottom of a series of coastal lagoons. The basic problem being that they are lik...

In my fictional setting, albeit close to real world, there is a research facility built on a remote island in a form an underground multi-floor bunker. This bunker does not look like a mine - it is, in fact, a concrete-steel building with living rooms, laboratories, elevators, storage areas, etc ...

I would like to request a review of an Awk program I have written. This script meets an immediate business need and, ideally, serves as a coding style example for new hires (who may not yet be proficient in Awk). Consequently, the script is not as compact as it could be, and not all error conditi...

My road bike bottom bracket which has seen some roughly 6000km and one winter with lots of wet and salty roads and some freezing has developed some noticeable play now. It's still running smoothly and does not creak but has some non-negligeable side-to-side wobble so that I think about replacing ...

I'd like to arrange my 5 subfigures like this, where each column is the same width. It must compile with LuaLaTex. Basically there is a 2x2 matrix occupying the two left columns and two rows, and a 5th subfigure in the third row, vertically centered. When I just use 5 subfigures in a figure envi...

I am designing a e-commerce based website, part of which will be a order summary page. This order summary page, will contain the address and name of the person who ordered a product. My plan was to encrypt the order id, and pass it to the checkout success page like like so: https://www.mysite.com...

Suppose a circumference of radius r and center $\Omega$ rotates with constant angular velocity $\omega_D=\dot\phi e_3$ (D stands for disk) around an axis parallel to $e_3$ through $\Omega$. Let $\Omega$ rotate on the circumference of radius $R+r$ with constant angular velocity $\omega_C=\dot\psi ...

I have a Canon PowerShot A80 - which is obviously an old camera - dating back to 2003. Everytime I take one or two shots, it switches itself off, stating to change the battery pack. I changed a few types of battery, but it stays the same. Any idea how to solve this? Because I tried pushing the sp...

I started removing the old backsplash. Unfortunately, the drywall underneath was torn to shreds in the process and I ended up ripping it out and replacing. This particular section of the backsplash is bounded by cabinets on top and the kitchen counter on the bottom. I left about 1" of the existin...

I have an outdoor patio on the second floor which receives runoff from the shingles. It has been stained horribly over the past 3 years with this rust colored buildup all over it. I tried using a pressure washer and it couldn't cut through the gunk to remove it. I bought RustAid rust stain remo...

My son is making a backyard deck of about 6 x 6 metres for my daughter. I am too old and doddery to help much, but am advising. Now we find that some of the planks (400 x 23 cm composite) are curved by up to 2mm, that is like a banana lying on its side. The standard plank spacing is 5mm, and we h...

I've read three or four ebooks about two ladies that are senior citizens solving crimes. They live in a place called "Tawas" I thought I'd saved them in my library but am unable to find them now. I tried googling using the word "Tawas" and still nothing. Unfortunately I can't remember the ladies ...

A man, who lost his son because of a brain tumor, says this to the owner of the house: "Listen, if you ever go to sell this place, let me know first because I would like to buy it.BBC-man wants to die in the same room as his son Why "....ever go to sell...." instead of "....ever sell..."? Is this...

If I remember rightly, there were also fights going on within the tunnels also. Not sure if same book, but people started off being "born" within virtual reality and had to prove themselves, before being born in to flesh and blood.

One hundred ants are dropped on a meter stick. Each ant is traveling either to the left or the right with constant speed 1 meter per minute. When two ants meet, they bounce off each other and reverse direction. When an ant reaches an end of the stick, it falls off. At some point all the ants will...

Suppose I wish to derive a numerical integrator for the first-order ODE $$x'(t)=F(x(t)).$$ By differentiating both sides of the expression in $t$, I can write a second-order relation also satisfied by $x(t)$: $$x''(t)=\frac{d}{dt}\left(x'(t)\right)=\frac{d}{dt}F(x(t))=DF(x(t))\cdot x'(t)=DF(x(t)...

$\newcommand\C{\mathbb{C}}$Let $\Gamma$ be a discrete group and let $M$ be a $\C[\Gamma]$-module. Let $G \lhd \Gamma$ be a finite-index normal subgroup with quotient $Q = \Gamma/G$. The conjugation action of $\Gamma$ on $G$ descends to an action of $Q$ on $H_r(G;M)$. In other words, $H_r(G;M)$...

I have a little problem and would be extremely grateful if somebody could help me. Indeed, I am having trouble while referencing images. In fact here is my code: main.tex: \documentclass[french, 12pt, twoside, openany]{book} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage{graphic...

I want to include an ornament in my sheet music notation but I am not sure if it should be a trill or a turn. Perhaps someone could tell me which is better. This piece is 4/4 time in C major. So, this is the bar in question with the first 16th note on the 3rd beat notated as a trill. Here is wha...

I have noticed that the content of my paper is in the scope of two special issues of a journal. Is it reasonable to submit that to both of them art the same time, or I have to wait for the result of the first one?

Don't aircraft use symmetrical tailplanes so as to not produce lifting forces when not needed? Im confused by people saying that they use upside-down cambered airfoils.

I am a computer science student new to philosophy. I have been thinking about the Chinese Room Argument and its replies and have tried to think of it as a different, more physical analogy. Imagine a rock falling from a mountain. The instructions are encoded in the paths of the mountain. The posit...

Output \$20\$ float64s with absolute value between 1 and 2 inclusive whose sum has the largest possible relative error. We can assume the true sum is not zero. The sum is to be computed from left to right in a loop in the obvious fashion. The relative error is abs(true sum - computed sum)/true su...

If we look at these two sentences: A. This is more serious than what people think. B. This is more serious than people think. Is using "what" there grammatically incorrect? Or are they the same? Is one more idiomatic than the other? When would you omit "what"? Thanks!

During our visit to the breeder, my daughter (8) was lightly bitten in the face by the mother dog (a certified Golden Retriever). It happened very unexpectedly; the dog had previously shown herself to be very friendly. The lip bled a bit, and there were long, superficial scratches on the nose. My...

What's the difference between these two commands? sudo adduser Alex and sudo adduser -m -c "Alex Hales" -s /bin/bash Alex The first command is simple and creates the user without any directory mentioned, while the second command is an elaborate one with a specific directory. Can anyone explain...

All "surds" represent whole numbers smaller than 15, and the same number is never used twice with the same index. (It's a sudoku.) Attribution: PUZZLEBOMB.co.uk. Puzzles by @stecks & @apaultaylor.

In, An Introduction to Thermal Physics, page 235, Schroder wants to evaluate the partition function $$Z_{tot}=\sum_0^\infty (2j+1)e^{-j(j+1)\epsilon/kT}$$ in the limit that $kT\gg\epsilon$, thus he writes $$Z_{tot}\approx\int_0^\infty (2j+1)e^{-j(j+1)\epsilon/kT}\,dj$$ But how is this correct? Th...

I need help with identifying another Yaskawa Z1000 board component ( T4 G4 markings on) :

I just upgraded my 22.04 boxes to 23.10 and then to 24.04. They stopped resolving dns queries. They are using systemd-resolved and resolvconf.

I'm using enum in C to have constants for values that can be bitwise-or'd together, e.g.: enum show { SHOW_PREDEFINED = 1 << 0, SHOW_USER_DEFINED = 1 << 1, SHOW_OPT_IGNORE_LANG = 1 << 2, // ... }; typedef enum show show_t; show_t s; // ... s &= ~SHOW_USER_DEFINED; // "implicit ...

I am looking for a story that I remember from ages ago. I want to point to a similar query here: Story about person assigned by test to be a miner when he wants to be an artist Mark, the original poster and I had an almost identical memory of this story. However, the query was closed. The story...

One direction of the Grauert's contractibility theorem shows Let $f:S\rightarrow T$ be a surjective holomophic map where $S$ is a compact holomorphic surface. If $C$ is a reduced connected effective divisor such that $f(C)$ is a point, then the intersection matrix of irreducible components of $...

I am beginning to learn the fundamentals of statistics, and I am reading the proof of why Bessel's correction in the estimate of the variance works from the wikipedia page about it. I understand everything, except the following dramatic simplification of calculation (reproduced here): ... here w...

A client and a server are separated by a router. I don't understand the principle of MSS adjustment. When the client sends a SYN packet to the server, the SYN/ack server replies with its MSS. Example: 1452 bytes So will the client send packets with an MSS or will the router between the client and...

I want to get a better understanding of quantum phenomena and out world in general. Before long I've thought of Schrödinger cat as being both alive and dead (or spin both up and down). Now after some reading of math, it looks to me it is not technically correct, as the cat/the spin is in a linear...

I was born in Brazil. When I was 3 years old, my parents decided to move to the U.S. on a visa. We overstayed, and when I was 12, I met a boy who has a green card. A month later, I was abused by my dad, and he was sent to jail. After he was released from jail, he was then deported, and my mother ...

I will first give the mathmatical description of the problem, which I think is a good problem for high school MOers. Given positive integers $m, n \geq 3$, where $m$ is an odd number, consider a rectangle with $m$ columns and $n$ rows, divided into $mn$ small $1 \times 1$ squares. A good coloring...

Let rings be commutative and unital. Is there a brute force proof that the first-order characterization of a Jacobson radical is an ideal? Basically, for context, I'm having some trouble wrapping my head around the Jacobson radical and the three definitions I've seen for it (the first two shown h...

Is it possible to replace the flat-top pins on flat pedals with ones that have a dome top? I'm finding that SPD pedals are a bad idea — for me. If I make a mistake while trying something new, I'm much more likely to go down with the bike. But unclipped I feel a lot safer, which in turn makes me e...

What do you call the universal algebra generalization of the Jacobson ring and where can I read more about it? This question is a follow-up to this question that I asked about an hour ago, more specifically this answer by Qiaochu Yuan and this comment by Noah Schweber. The Jacobson radical is th...

EFS private key is normally encrypted by users Windows password, but when PIN (and TPM magic) is used to sign user in using Windows Hello, the user's passphrase is not used at all…so how can Windows access EFS private key since user password is not given? So, how are user EFS privatekey protected...

Everything I read about Pop 3 stars says that they were hugely massive stars that died very, very rapidly (relative to stars today), and so it may not be actually possible to find these stars, even with the power of JWST (though there have been reports of possible candidates). My question is, did...

There are 10,000 title fraud cases per year. 99% of all lawsuits of any kind are settled out of court. Does this mean that 1 million people's homes are stolen every year or 10,000? I'm inclined to the higher number as it makes sense that anyone who owns a house free and clear would get their titl...

This question also considers principles of quantum physics. When electrons or any other subatomic particles are "observed" or "measured", their wavefunction collapses to a certain point, i.e. the value at which it is observed. Its position, velocity, momentum etc. become 1 quantity - that is, the...

TAIPEI, Taiwan (AP) — Chinese President Xi Jinping called on world powers to help Russia and Ukraine resume direct dialogue during a meeting Monday with Hungary’s Prime Minister Viktor Orbán, state broadcaster CCTV reported. Orbán made a surprise visit to China after similar trips last week to R...

I'm thinking about taking out this weird nook in my basement, along with the white-topped blocks/supports that surround it. Is there any reason I shouldn't? In other words - is there a likely purpose the nook serves that means I ought to leave it alone? It's not near any water pipes, electrical w...

I need help finding a mecha anime that I have stuck in my head. I saw a clip of it on Instagram reels about 2-3 months ago and it refreshed before I could share or hit like and I was very interested in it. It has a mecha that seems to be made out of bones and I think meat? (I could be wrong.) Wha...

春天一到，花園裡綠意盎然 In general, this sentence means when spring comes, the garden is vigorous/blossoming with greenery or something like that. My question is what does 意 mean? I've looked online and some websites say it's "scenery", but this definition does not exist with the word 意 by itself. Thank you.

In the beginning of Macbeth, before Macbeth himself is actually introduced, we get a little overview of what's been happening from the Sergeant. He says this, which includes this aside about Macbeth's name: And fortune, on his damned quarrel smiling, Show'd like a rebel's whore: but all's too we...

While researching a question about one of Wordsworth's sonnets, I came across the article In the Ruins of Babylon: The Poetic “Genius” of John Keats by Paul Krause, which contains the following statement: William Wordsworth rightly described Keats’ poetry as “very pretty paganism.” I understand...

I am evaluating a model that predicts the existence or not existence of a "characteristic" (for example, "there is a dog in this image") using several datasets. The system outputs me for every dataset their TP, TN, FP, FN. I would like a metric(s) to judge how good is the model doing its work but...

Let $f:X \to Y$ and $g:Y \to Z$ be morphisms of projective schemes such that $f$ is finite; $g$ is surjective; $\dim Y = \dim Z$; and $g \circ f$ is finite. Is $g$ finite in this case? I'm really lost and don't seem to know how to start.

I already have an answer to this question, but I do not know, if it is correct and I do not find an answer in the www. There are up to 10 shots. So, I simply created all $2^{10}$ posibilities from 0 goals over the ten posibilities of exactly 1 goal (it could be the first, second, ... or last shot...

I know the basics of C#(Syntax, 4 pillars, SOLID, Designs Patterns, etc...) and Unity. I can do basic stuff like Flappy bird or Fruit Ninja without any help. But problems arises when I want to create more advanced projects, I don't know how to structure projects and I can't find any guides on how...

This is an odd ask, but I remember using a DOS TSR screensaver long ago that I've been trying to find without luck. I've dug through shareware archives and never found it. Perhaps someone knows what it is. It was really simple, just a white ball, or a circle really, that bounced off each side of ...

When I load both doclicense and changes the resulting PDF is incomplete but I get no error message using pdflatex. Example: \documentclass{article} \usepackage[type={CC},modifier={by},version={4.0}]{doclicense} \usepackage[commandnameprefix=ifneeded]{changes} \begin{document} \section{Introductio...

I'm writing a story about a fictional city-state on Earth. This city-state is very similar to modern-day Singapore. One unique aspect about Ebonia is that it is a 100% cashless society. All money transfers and transactions must be achieved through either credit/debit cards, cryptocurrency transfe...

Assuming that we have k factors and n stocks Then Barra provides a k x k factor covariance matrix F, and a k x n factor exposure matrix E. At runtime, we also observed a n x 1 vector r of individual stock return My question is, how should we calculate the k x 1 vector of factor return f? r = E^t...

What are the two methods of finding an answer? (CSV for the numbers) 1.01285590707,0.187144092933,1.16921005714,-0.159210057136,1.14616537324,0.0938346267569,1.22280897014,-0.132808970138

In the song "World's End Dancehall" by wowaka, there is a line that goes: パッとフラッと消えちゃいそな I can, from what I know, translate this as (We) suddenly, by chance, completely disappear, but this leaves me with a few questions: 1: Why is the しまう in masu-stem form? 2: What does そな mean? It might just b...

I had stored a bag of grout in a musty basement. When I went to use it, it had sort of hardened into a big block. I could pulverize it but when I rehydrated it and applied it it just stayed as a powder and didn’t harden into a solid. Is there anyway I can get it to solidify agsin

Can someone please confirm that these are bidirectional TVS diodes, I cannot find the datasheets for these anywhere, but they look to be them.

木柵 = Wooden Fence 欄 = Fence 柵欄 = Fence Fence So obviously 柵欄 means fence, but if you break it down word by word it's fence fence, which makes no sense to me. Another example I can think of is 繩索, which again is rope rope, whereas 鐵索 is metal rope and 繩子 is just a rope. Can somebody explain this p...

I'm creating tests for our .Net 8 API. We use MySql for data storage and CQRS pattern for queries. In my personal opinion, I shouldn't use the real database for testing, because you will use an existing set of data (from which to do the assertions) which might have changed at any moment, and so t...

I've used rsync recursively and, to my surprise, I witnessed this very strange behaviour in the output (I don't remember if it was deleting or creating or a combination, but I think it won't matter): A/B/file1 A/file2 A/B/file3 In other words, the recursion did not happen linearly (according to t...

I have a Ficus virens. The surface in one of the leave have bump. Only 1-2 have such attributes. Does any one know what is it? Virus? Need to deal with it? Or just leave it alone?

Facing an issue with "Time Machine couldn’t verify your backups" on macOS Sonoma. Similar questions have been asked around but always end with absolute random solutions that work for someone: When Time Machine says it's 'Verifying Backup...' what is it actually doing? Why is "Verify Backups" in ...

I have just installed Mathematica and appreciate your help on my question. I have the following picture: Is it possible using Mathematica to flip the green curve and overlay it on the blue? My intention is to compare them to see to what extent they are similar once the green one is flipped.

I am installing Ros2 on my Ubuntu PC and want to make sure the installation steps won't affect my PC, in particular I need to know what this command actually do: echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] http://packages.ros.org/ros2/ubuntu...

Currently I am studying the Schreier-Sims algorithm. To gain a deeper understanding, I am trying to look into applications of this algorithm, among which its use for solving the Rubik's Cube is perhaps the most famous. However, it seems that there is not a complete, comprehensive algorithm that u...

How would the 577 seats of the French National Assembly have been allocated if the first round of voting was the only round and the candidate with most votes in the first round only would have been chosen in each constituency? The limited news articles I can find only speak of the overall vote sh...

A friend has a 21" i4 iMac with 8Gb RAM and it's horrendously slow. He's had Apple Support and Geniuses look at it and they cannot find a problem. The only extra software he has is Photoshop elements and simply loading Photos or Safari takes several minutes. I've taken it home and wiped the hard ...

I am trying to understand the meaning to the following couplets from John Keats's Lamia (full poem here): Ah, happy Lycius!—for she was a maid More beautiful than ever twisted braid, Or sigh'd, or blush'd, or on spring-flowered lea Spread a green kirtle to the minstrelsy: Does "braid" mean "br...

Some months ago I bought a Mini PC, which has 8 Gb of RAM and a 256 Gb SSD. The Mini PC is running Windows 11, fully patched. I use this PC for programming in Visual Studio and SQL Server. The PC is very slow in some operations, like starting up, or loading the software I use. The PC doesn't allo...

I am looking for a bike to replace my current one, and I found one with a SRAM 12 speed eagle ttansmission. The thing is that I just changee the transmission on my current bike (9 speed Shimano CUES U400 cassete), and I was wondering if the 9 speed cassete from Shimano fits on that wheel hub. The...

I have been working on a database server for quite a while now. So far to access its web-dashboard, we'd use the IP address of the server. Now my boss wants it to be accessed via a domain name. Thing is, I don't have full administrative rights over the LAN network. We're international, so most se...

Let $\Omega\subset\mathbb{R}^N$ be an open, bounded and connected Lipschitz domain. Is it true that we can find some $R>0$ such that any $N$-dimensional open ball $B(x,r)$ with $r\leq R$ that intersects $\Omega$ has the property that $\Omega\cap B(x,r)$ is a open, bounded and connected Lipschitz ...

I want to add a new field to my feature attribute table. In this field, I want to generate a random ID (just a number, like 1, 2, 3, etc.) for every new and existing point I create on the map. This is particularly important for new points, so I need it to automatically generate a new ID for each ...

I need to be able to iterate all tables and issue a TRUNCATE command, however, I don't want the loop to be held up by blocking. Essentially, I am looking for the best way to determine if a SCH-M lock can be obtained prior to issuing a truncate command.

Hypothetically, when referring to a group of, say 20 women and 1 man, is ils still grammatical, or at some point the ratio is so skewed toward females that elles becomes grammatical? This isn't even really a hypothetical, given that a typical teacher-to-be class in my country is overwhelmingly fe...

Would anyone know what the +A0V chip that looks like a BJT is. Measuring with a ruler the dimensions are approx. 1.5mm by 1mm. It is connected to this chip that I also don't know what it is, with marking 'LBSS B197 224' (4mm by 4mm). The second pin is connected to a relay and the third one is gro...

I'm attempting to wire a Yaskawa Sigma-V Series AC servo drive to a Rosetta CNC, and I came across this symbol, a triangle that has one line in, one line out, and what seems to be a return line connected to what looks to be a small circle touching the triangle. Here's another photo, zoomed out a...

Survey sites like Swagbucks have often a prescreening mode in which one is asked questions like your annual income, whether you own car or not. It is observed that most of the time if one selects options denoting lower income, zero car, then the respondent disqualified and no point/incentive give...

I am looking at a 20amp wall socket from Leviton (5380). It has surge protection at the socket. I noticed in the description that it says "Do not install this device if there is not at least 10 meters (30 feet) or more of wire between the electrical outlet and the electrical service panel." I'm ...

For the context, I'm in the final year of my MEng degree in Computer Science, and I have a choice to resit a course, which I failed, to stay on the accredited route, or I can choose not to resit and graduate without BCS accreditation. The main problem with resitting is that I will only be able to...

Let $f_1,f_2,\dots,f_k \in \mathbb{Z}[X]$ be a $k$-tuple of polynomials in one variable with integer coefficients. For a prime $p$, let $r_i(p)$ denote the number of roots of (the reduction modulo $p$ of) $f_i$ in $\mathbb{F}_p$. I'm interested in the possible $k$-tuples $(r_i(p))_{i=1}^k$ that a...

My 2015 Subaru legacy has been having some issues coming to a stop. The car first stalled after coming to a stop 3 weeks ago and then never happened again until today. The first time it happened once, then I couldn’t start the car until I gave it gas while starting. The problem happened again tod...

I'm new to designing flyback converters. I noticed resistors connecting the primary and auxillary coils. Can somebody explain the usage of these resistors for me. The IC in this schematic is a CR1510. Its power input for Vcc is 11-15V.

Im trying to create a circular array of planes, where the face of the plane is tracked to a point (in this case a camera). So that I can animate all the planes along the circular path and have them always face the camera. So far I've made a simple setup of a bezier circle, with a collection of pl...

This will be my first post on here since this is my first time using Blender. I honestly just got into it because I wanted to convert a piece of clothing from one game to another. I did find other threads on similair topics, but they all seemed to be talking about much simpler meshes than this on...