My question is: after upsampling a signal, does the output signal contain the original signal values? The diagrams I saw so far (on wikipedia and different forums) have always shown the original values but when I convolute with the fir filter coefficients, the output signal doesn't contain the or...

I know, I know; I said I was giving up on Venusian terraformation, but this is gonna haunt me for the rest of my days if I don’t come up with some way to render this planet habitable. So, back to the drawing board… To speed up Venus’ rotation to 24 hours, half the planet is enclosed in a giant “u...

When I try to install the Nvidia graphics driver via Additional Drivers GUI on Ubuntu 22.04, I get the following errors while applying changes. Also, the font sizes are super large. I will appreciate any ideas for fixing the issue.

There's tons of examples. To name a few: MgRonald's and Sentucky Fried Chicken (instead of McDonald's and KFC) in Hataraku Maou-sama Attack Family (instead of Smash Brothers) in Jaku Kyara Tomozaki-kun Bepsi (instead of Pepsi) in Yowamushi Pedal Chatter a.k.a Yuttaa (instead of Twitter) in Yakuz...

I’ve got a trivial problem that has become complicated by a non-trivial setup. My goal is to install an 80amp (100amp breaker) EVSE to charge my electric truck. An incentive from my electric provider will pay up to $850 for the installation of an EVSE, and since the EVSE itself was provided wit...

I live in the UK and have a Bird of Paradise plant that has not been doing too well for just under a year now. Currently, all the leaves have curled in at the edges and have dried up and gone brown on the edges. Some leaves have died, some have gone yellow/brown others are still green. I have h...

I am working on a project where I am determining the slopes of sewer pipes. I have elevations recorded in field called "Elev" in a point shapefile. In a line shapefile the represents the sewer lines, I have an "UpstreamElev" field that should contain the elevation of the point located at the sta...

I am scanning Ovid's metamorphoses. For the line "unus erat toto naturae vultus in orbe," I have - - | - - | - - | - ' ' | - ' ' | - x. There doesn't seem to be an obvious position for the principal caesura in either the third or fourth foot (toto naturae - - | - ' ' ). Suggestions? Incidental...

Bank notes (and other certificates) typically have patterns of fine lines, for example the pattern behind the lion here, from the Bank of England Museum: Do these patterns have a name? What is the proper name for these patterns?

How to delete just first occurrence of given value from a list? Without sorting etc. Something like this: DeleteFirstCase[{1/3, 1/2, 3/4, 1/2, 1/2, 1/2}, 1/2] -> {1/3, 3/4, 1/2, 1/2, 1/2} Only arr = {1/3, 1/2, 3/4, 1/2, 1/2, 1/2}; item = 1/2; arr = Delete[arr, First@Position[arr, item]]; ?

I have a to export points along a specific path. We have a point layer of 40.000 points (representing water customers). We created a polyline from one point to the next, and so on (representing the way the meter reader has to walk from one customer to the next). Now, we need to export the custome...

Using amsmath with the \tasks environment. @orelo fixed 2 problems: reduced line spacing partially fixed alignment on the "=" symbol. I probably wasn't clear enough in my OP re: desired alignment. Thank you! mwe: \usepackage{amsmath} \usepackage{amssymb} \usepackage{framed} %box para \usepackag...

In a client warehouse,I'm installing a Pick to Light system but I'm having connection issues between the server and the P2L controller. sometimes they communicate, sometimes they are not. Their IT use IP from 192.168.1.x and 192.168.2.x with /20 subnet mask. I noticed that in both 1.x and 2.x ip ...

I read the US Republican Congressman George Santos was accused of lying multiple times during the election campaign. He is accused of faking his CV and making false statements. He himself admitted that some allegations were true. I would like to know why the lies were discovered after the electio...

Say someone commits a sin that is normatively punished by death - can one perform teshuva and be forgiven in such a case? Is the situation different for sins classified as yehareg ve'al ya'avor (transgress and do not be killed)? Would the rulings be different if the Sanhedrin and the Temple stood?

Given the sentence "The cat sat on the mat.", I want the list of tuples: {{"The", "Determiner"}, {"cat", "Noun"}, {"sat", "Verb"}, ...}, these are the part-of-speech tags. TextStructure should be able to do this, but it really can't: TextStructure["The cat sat on the mat.", #] & /@ {"ConstituentTree

Based on previous examples and code submitted, I wrote this simple state machine, let me know if you have other suggests on optimizations potentially algorithmic. #include <iostream> #include <tuple> #include <array> #include <unordered_map> #include <functional> #include <string_view> enum Acco...

Bob witnesses a murder, so reports the crime to the police. Later, lawyers representing the state/jurisdiction come to Bob, asking him to provide witness testimony. But Bob values his time, and doesn't want to spend hours at the court out of the goodness of his heart. Is Bob allowed to ask for mo...

Context: Rental house built to US/Oregon code in 2008. There's a receptacle in my kitchen covered by a blank plate. It's located vertically below the lip of my counter. When I opened it, it had one bundle of wires. Hot and neutral were both capped, and a no-contact tester told me the wires were h...

The premise of my story is that we have discovered a parallel Earth (let's call it E2) lying next to ours (let's call this E1). Something has gone wrong on E2 - at some point in its past, it went through some sort of apocalyptic event that decimated most of the people living in it. The remaining ...

The attached image is the first couple of bars from the James Bond theme – No Time to Die: The notes in yellow sound to me like they are played with a slight accent/emphasis, and I'm trying to find the correct way to mark this. Also, the notes in blue seem to be played slightly softer. I am thin...

Here I have a MWE showing that the font size of my text in math mode is not affected by me changing the default size using \DeclareMathSizes but is changed when outside my tcolorbox. What can I do to fix this? \documentclass{beamer} \usepackage[most]{tcolorbox} \newtcboxfit{\myboxSlideBody}{ ...

The Panasonic Vent fan/Light I bought has awful color temperature that doesn't match the rest of the lighting in the room. I'd like to use the fan as a fan only and install small cans to provide lighting. There is an existing 14/3 from two switches to the fan/light for individual control. I would...

The US passport includes a field called "Nationality". If you search for a sample image online, it reads "UNITED STATES OF AMERICA" (example). Could it ever be anything else? On a side note, if it's always the same, why is it mentioned? I would appreciate any sources. Thank you.

I am not well-versed in statistics, so please bear with me. I will try to explain things to the best of my knowledge. I have some hardware that produces a signal, this signal has an offset and I want to subtract this baseline from my signal. This is the procedure I use to determine the baseline: ...

If the ball gets embedded in the outfield wall, what is the ruling?

I've received a cease and desist letter for defamation from a local businessperson that I believe to be without legal basis - the actionable statements listed are clearly statements of my opinion. Would it be legal to publish this letter publicly, or send it to a newspaper, to let people know tha...

I'm trying to replicate this figure: but I don't know how to draw these planes. I need to draw the plane for constant z, rho and phi. I know that, to draw this, many lines of code are needed but the ideal answer should be simple and easy to understand and to modify. Right now, I only have this c...

I'm looking for a short story I read in a magazine like OMNI, probably in the late 80s or early 90s. It was set in the near future where time travel was possible. People were using it to visit the dinosaurs, and their time travel ships would automatically return to their original time after a s...

As a result of the defamation lawsuit brought by Dominion Voting Systems Fox News was forced to turn over documentation including private conversation of their leadership and major personalities. These conversations reveal both that Fox refused trump's attempt to call in for an interview during ...

I am wondering if the fact that "the electric potential is continuous" should not be added to the set of axioms of physics. I have never seen a problem where the potential is discontinuous, unless, possibly if the problem involved non physical assumptions (like infinite objects etc.). Are you awa...

Similar to a previous question about playing smarter characters I'm looking for techniques and strategies for playing badass characters that are a lot cooler than me. Specifically I'm asking for a player, Bob, in my group, that likes to play badass military type veterans in the vein of movie acti...

I've seen so many congressional investigations over the years, and generally they all feel pointless to me. In particular, every case the news talks about the investigation for a little while, you hear about questions and answers made, but ultimately at its conclusion it seems no substantial new ...

MWE: \documentclass[12pt]{book} \usepackage[showframe,paperwidth=4in,paperheight=3.5in]{geometry} \begin{document} \tableofcontents \chapter*{Chapter} \addtocontents{toc}{Heading I} \addcontentsline{toc}{section}{Section 1} \addtocontents{toc}{\noindent Heading II} \addcontentsline{toc}{section...

I was reading a Japanese article as practice today and came across a sentence including two "が" particles that I had trouble understanding: 午前7時ごろ、シャンシャンが乗ったトラックが動物園を出発して、成田空港に向かいました。 It seems like there are two subjects (シャンシャン & 乗ったトラック), but what is their relationship? How do they apply to t...

How can an equation like this be simplified in Mathematica where q,a,b,k are all natural numbers? q = ((a*(b - 1))/ k) + (k - (Mod[(a*(b - 1)), k]))*(1/k)

I'm not really sure if this is a physics or chemistry question, but I'm picturing electron orbitals in atoms so I'm leaning towards it being more chemistry. Anyway, I'm taking a class on QM and we're simulating the wavefunction of an electron in a box at the lowest energy level and I'm supposed ...

Hello everyone. Today, I have a rather simple question. EDIT: $$ x, y \in [1,\infty) $$ I have the following inequality : $$ x<\frac{1}{a}<\:y \tag1$$ I want the middle term, which is $$ \frac{1}{a}\ $$ to be just $$ a $$ so it should be this: $$ \frac{1}{y}<a<\frac{1}{x} \tag2$$ So, the division...

In the second volume of 君死にたもう流星群 I found this sentence: 理由は分かるようで分からなかった The character is confused by the events, and as far as I understand he is saying he doesn't understand why a friend of his is leaving school, and another one shut him out, but I can't understand the form 分かるようで分からなかった. Wh...

Let's say that I have a function $f: A \to B$. I'd define a function, rigorously, as a set $$ \{(x, f(x)) \mid \forall x \in A, \; \exists ! b \in B \; s.t. b = f(x)\}. $$ If $A = \emptyset$, then $f \subset \emptyset \times A$, but $\emptyset \times A = \emptyset$, so that implies that $f = \em...

Let $\textbf{F}\in \mathbb{R}^3$ be a smooth vector field for all space. It is well known using Helmholtz decomposition that we can decompose $\textbf{F}$ into two vector fields in $V$; $$\textbf{F} = \nabla \sigma + \nabla \times \Gamma$$ where $\nabla \sigma$ is called the irrotatioal part and ...

Why did the United States choose to use an untested uranium-fueled (Little Boy) bomb at Hiroshima instead of a plutonium-fueled (Fat Man) bomb, which had been successfully tested at Trinity? Surely the components for additional plutonium bombs were available, as evidenced by events at Nagasaki...

After watching a live performance by a certain actor, one fan was very impressed so she said DVDで観してもらいましたけど生の迫力パない The live show was better than what is shown on DVD. I don't understand what is meant by 観してもらいました here. Is it typo or something?

Let $f: \mathbb R\rightarrow \mathbb R$ satisfying \begin{equation*} f(x) + f\bigg(1-{1\over x}\bigg) = \arctan x\end{equation*} for all $x\neq 0$. I want to evaluate \begin{equation*} \int_0^1 f(x) dx \end{equation*} I know that $\tan\bigg(f(x) + f\bigg(1-{\cfrac 1x}\bigg)\bigg) = x$ and $-\pi/2 <...

The ubiquitous Catalan numbers \$C_n\$ count the number of Dyck paths, sequences of up-steps and down-steps of length \$2n\$ that start and end on a horizontal line and never go below said line. Many other interesting sequences can be defined as the number of Dyck paths satisfying given condition...

Basically, I have a character that I'm working on in a futuristic-fantasy type of planet. She's supposed to have purple hair that she was born with. What is a magical explanation for this phenomenon? Other Info The rest of the character is completely normal She is the only one in her race with t...

I want to plot a complex matrix, i.e., a matrix with complex number entries. I want the matrix to be plotted as DiscretePlot3D as shown in the figure (top figure). But, I also want each bar to be colored based on the phase of the complex number (bottom figure). If you want to try it out, here is ...

I'm running 1/2" EMT conduit between single-gang surface-mount boxes. The holes for the boxes are slightly set away from the wall so that the conduit does not mount flush against the wall. I have found various types of single screw and double screw support clips that are intended for holding the ...

I'm looking for a gratis text editor for Linux that supports column manipulations/selection like the Notepad++ text editor for Windows allows. Specifically, I want to be able to: Quickly and easily select a rectangle of text, even if that means going beyond EOL (End Of Line) for one or more line...

If a macro or an argument (say #1) contains some strings, say Mystring, I can create a macro \PrefixMystring{}{} using something like: \expandafter\newcommand\csname Prefix#1\endcsname[2]{ the arguments are ##1 and ##2 } I'd like to do something similar with \NewExpandableDocumentCommand, what...

Many outlets have a bridge clip on each side of the receptacle. (I have seen these used for things like making one outlet switched on one side but always-on for the other.) Question: If you have a handle-tied 2-pole breaker, can you cut the hot clip and run one phase to each half of the receptac...

Today I came across the following inequality in class:$$24-4k<0$$ I tried to manipulate it like this: $$24-(24-4k)<24-0$$ $$4k<24$$ $$k<6$$ This is obviously incorrect. However I can't seem to understand what the problem is. When solving algebraic equations we can use the method above: $$24-4k=0$...

In an old residence of a general, there is a stone tablet high above the door on which there is written "聊以拟伏腊".What does that mean? The following is given by the AI ChatGPT that goes viral recently around the world, but I am not sure if it is reliable. In my opinion, 伏might mean the hot summer w...

Working on a two-part project. First, we're estimating the total size of a very large population. Each member of the population has a standardized random 15-digit identifier, and we have guessed using a brute force method until discovering enough extant identifiers (20,000) to estimate the popula...

I use postgresql 13 and have a table defined with the following DDL CREATE TABLE item_codes ( code bytea NOT NULL, item_id bytea NOT NULL, time TIMESTAMP WITH TIME ZONE NOT NULL, PRIMARY KEY (item_id, code) ); CREATE INDEX ON item_codes...

Does philosophy rely on intuitions? If so, and all of philosophy comes down to intuition, how can one person be deemed to be more rational than other? In this world, most would agree that you cannot be certain of anything, apart from your own experience. Thus for basically anything else, there is...

I am initiating and doing a basic penetration testing course and have come across one doubt. For example in this URL: http://webapp.thm/index.php=?page=1 I get that I am requesting the index.php file in the server and I am specifying that I want to view page 1 as a value of the parameter. But in ...

Well, I am designing a datalogger and I want to use an STM32L4R5VGT6 mcu and I know that this microcontroller has an internal RTC, so to avoid buying an external RTC I want to use the one that comes built into the MCU but I don't know if I have problems later, the internal RTCs are reliable of th...

There's a mystical component to my world that I have been unable to resolve: Why might a divine being not reveal himself when it would otherwise be in his/his followers' best interests. My world has a Henotheistic setting, where a new upstart religion is challenging the incumbent primary divine b...

I'm trying to fix a problem when trying to use DOS stuff on SSDs. The problem is sector alignment in an SSD is completely different from what DOS expects, and writes to FAT do funny things when the computer crashes in the middle that just don't match what FAT repair utilities can repair. So I lai...

I am a new Latex learner and was following a guide. I created a template document. I used \chapter{} command to make a new chapter but i got an error stating undefined control sequence. if i remove this command the file shows results as expected. This is my Tex code. \documentclass[12pt, a4pape...

I am planning on making my normally aspirated engine into a boosted Supercharged Engine using the AEM F/IC 6. From many searches and forum posts I've heard I need to do MAF (Mass Airflow Sensor) Clamping, I don't mind doing it however, I was to understand why it's so important and the major diffe...

If a body is free to move I have studied that any point can be assumed to be in translational motion with velocity of the centre of mass along with a pure rotational motion with $\omega$. For Kinetic Energy we can take the sum(obviously scalar sum) of kinetic energies in both cases, which is equa...

Prove or disprove: given normal subgroups $H, N \trianglelefteq G$, which are both groups of infinite order, $HN / H \cong N, HN / N \cong H \Leftrightarrow HN \cong H \times N$. This is a special case of second isomorphism theorem when $N, H$ normalize each other. I first consider the case when ...

You are having a meeting with an HR staff This is a quote from this English lesson material.(https://eikaiwa.weblio.jp/information/business-material/address-concerns) Is this English sentence correct? I thought the word "staff" is a group of people and that you can talk to a staff member but y...

I know that "I can tell you" is used to emphasize a statement. But , in this paragraph, is the writer pointing to this usage of the idiom? and if so, why is it written in Capital letters? I CAN TELL you about my friend Andrew, the cognitive scientist. But it’s not pretty. One evening he appeared...

Let $G$ be a finitely generated group with finite generator $S$, and define the metric $ d_S : G \times G \to \mathbb{Z} \cap [0, \infty)$ by $$d_S(x, y) = \min \left\{ \ell \geq 0 : \exists s_1, \ldots, s_\ell \in \left( S \cup S^{-1} \right) \setminus \left\{ e \right\} \; \left( x^{-1} y = s_1...

Consider the problem of Bayesian Estimation - that is, suppose we are interested in estimating the probability distribution(i.e. posterior distribution) parameter "thetha" based on some observed data and some prior knowledge of "thetha". We can write the Posterior Distribution as follows: $$P(\th...

I'm not an native speaker. Most of the time when I hear a word that starts with "in" I think of opposite, a negation: Visible - invisible Valid - invalid Dependent - independent But I get puzzled with invaluable. This is actually like superlative, right? You have some skill that is valuable and...

Matlab has a function called planerot which takes a two-component column vector $x$ as input and returns a $2 \times 2$ matrix $G$ and a two component column vector $y$ such that $y = G.x$ and $y_2 = 0$. The documentation is available here. I am trying to implement it using the ROTG routine of th...

How to create a Mathematica code for finding degree of a Differential Equation (ODE or PDE)? For example; The degree of the following ODE is 2. eq1=(D[u[t], {t,3}])^2-D[u[t], {t,2}] u[t] +D[u[t],t]==0 The degree of the following PDE is 3. eq2=D[u[x,y], x] + (D[u[x,y], x,y])^3==0 As far as I...

I need to substract a part of a bezier curve with a boolean object. Since I need to animate the part being removed, this needs to be dynamic. There is no boolean modifier on curves, and I’ve tested with Geometry Nodes (curve to mesh > mesh boolean) without managing to achieve it. Does anyone know...

When would one prefer Der Text war ihm zu schwer. over Der Text war für ihn zu schwer. / zu schwer für ihn. I have seen both used in grammar books, but I could not find anything specific about when to prefer one over the other. I struggle to put the small nuance difference between into words....

I want a fraction of derivatives, so I use this code: \documentclass{article} \usepackage{amsmath} \usepackage{xfrac} \begin{document} Good: $\sfrac{4}{5}$ Not good: $ \sfrac{\dfrac{dy}{dt}}{\dfrac{dx}{dt}} $ \end{document} As you can see, the result is not very beautiful: At the f...

This is an excerpt of the Sinfonia Nr. 1 in C major by J.S. Bach. I thought this were a "clean" modulation to G major, but to my surprise, Bach uses an f natural in the lower voice of m. 8. Is there a harmonic meaning/justification behind this? I experimented a little and found that the passage d...

I'd like to wrap all my sqlite statement functions with a decorator which collects the statement and the lists of values I will inject in place of placeholders in my statement (to avoid sql injection). Code looks like this: #decorator def dbexecute(func): def withcon(*args): conn = sq...

It is mentioned in Yerushalmi (Sanhedrin, 87, Halacha 13) that a magician/ witch (Mechashef) applied his magic on three Taanaim: Rabbi Yehoshua, Rabbi Lazer and Rabbi Akiva in a public bath house. How can it be that the magic really work on these great Taanaim, whereas it did not work for Rabbi C...

I have a 2017 Duster 4x4 and want to tow it behind my motorhome on a trailer dolly which holds the front wheels. The rear wheels will still turn so I was concerned this may damage the 4 wheel drive system.

What is the best way to deal with unteams like sparring partners? I'm an intermediate Muay Thai in class. Everytime, beginners and intermediate pair up with a certain 'advanced' fighter in class for light sparring, the guy has somewhat unsportsmanlike conduct, since he is better. He'll put both h...

Want to get the sound from my Sennheiser MKE 400 --- a battery-powered shotgun mic with a 3.5 mm TRS output --- into my Audient Evo 4's XLR/TRS combo inputs. I first tried using a 3.5 mm (1/8") TRS female to 6.35 mm (1/4") TRS male cable, but Evo would not show anything on the meter. I could get ...

I am (used to be) a Sitecore MVP and I appear in the Sitecore MVP Directory. How can I upload or change my photo?

I remember an anime from the 90s. It was on VHS back then. The spaceship looks like a large sled with wings. The commanding bridge was on top of it. The spaceship started on the water, maybe in the ocean. The crew could drive into the battle stations with ball-like structures to defend. Does an...

I want to compare the median of body temperature (passem$temp) across two groups (whether the patient died or not, died30in.numeric). I ran Mann Whitney Wilcoxon first in R using this command wilcox.test(passem$temp, died30in.numeric) and got these results: > wilcox.test(passem$temp, died30in.num...

Background: I left a small company after completing a few big projects. The people with know-how were already merely a few, and none really had sufficient knowledge of my domain. Even those people are now gone. After the losses, they hired a few jr engineers, but with all the key people gone, the...

I was able to diagonalise $H=\hbar\omega a^{\dagger}a+\hbar\omega b^{\dagger} b+\hbar(u a^{\dagger}b+u b^{\dagger} a)$ using the Bogoliubov transformation \begin{equation} a=\cos{\alpha}c_1+\sin{\alpha}c_2,\qquad b=-\sin{\alpha}c_1+\cos{\alpha}c_2 \end{equation} However, I can't seem to work...

I need to produce JSON configuration files with echo and tee called from my Python script. By trial-and-error I've found out that I have to use single quotes. Yet I don't understand all the behaviour that I came across when using Python's run(). The following code prints my questions: #!/usr/bin/...

The following script fails when run with bash 4.4.20(1) #!/bin/bash bar() { local args=("y") } foo() { local -r args=("x") bar } foo with error line 3: args: readonly variable but succeeds when run with bash 4.2.46(2), which makes sense after reading 24.2. Local Variables. The following ...

There was a time when computer graphics had to deal with non-square pixels. Happily that time ended once everyone had VGA or better. But Windows 2 supported both EGA and VGA. And while the latter has resolution 640x480, the best the former can do is 640x350. That's not just fewer pixels overall, ...

Given a set of points I would like to have the boundary given by the outtermost points of the set. For example: if I have 11 points, 10 being on the perimeter of a circle (each one at 2*pi/10 radians) and some in the center (or "inside" of the other set of points) corners of a given circle: n_poi...

I have next data: age - how old is person, e.g. 17 or 25 bmi - body mass index, e.g. 18.25 or 29.35 rsXXX - results of genotyping in rs(point), e.g. rs10852521: C/C, C/T and T/T I devide all data in 2 groups bmi_group, create new column bmi_group, remove all rows not in group low - bmi<25.0 h...

A $1$-planar graph is a graph which has a drawing on the plane such that each edge has at most one crossing. I used nauty to generate all 3-regular graphs up to order 12, and checked each one of them individually. They all turned out to be 1-planar graphs. My question is whether it is possible to...

This is probably a very stupid question but i don't understand why the magnetic force only act on moving charges, when i have a permanent magnet and place another magnet inside its field they clearly act a forces onto one other with them both being stationary. Also I am clearly misunderstanding s...

The voltage across the diode when forward biased is 0.7 V as written in books, but in datasheets the forward bias voltage is usually rated as 1.1 V for higher currents which is greater than 0.7 V. Why is that?

the slice filter on html code can generate invalid html that can cause in cascade JS errors {% set text = paragraph.field_verbatim_text.value %} {% if text|striptags|length > 300 %} {{ text|slice(0, 310)|raw }} [&hellip;]<a class="verbatim__suite" aria-label="{{ 'Read the full text'|t }}" ...

Here is how U+261E (manicule) and U+00B6 (pilcrow) are displayed in Pages: As you can see, all the U+261E and U+00B6 glyphs looks pretty the same across Menlo, Monaco and Courier New (with the exception of pilcrow in Courier New) and across Helvetica Neue and Gill Sans, and for this reason it is...

I searched for the function of Translate Instances geometry node on Google and only got answers from Blender official website. I don't understand what it actually does. Can somebody explain the function in non-technical way?

So there are BRK.A and BRK.B. The face value of BRK.A is 1,500 times of that of BRK.B, and BRK.A has 10,000 times the voting rights of BRK.B. BRK.A is normally traded at about 1,500 times the price of BRK.B. My question is: why is the price proportional to the face value, not the amount of voting...

The question about the existence of a cycle of a given length in a $3$-connected planar graph all faces of which are pentagonal, and also attempts to solve it led to the following problem. Insert into triangle a planar graph with pentagonal faces only, so that the degree of each of its vertices ...

I have been an full time appointed research professor most of my career (until 2017) in UK and Australia. I still work in a small business as CEO working exclusively with academic clients. I also have one 'staff' university based appointment but at senior Lecturer level to do a particular part ...

I am trying to draw a structure of a large molecule using chemfig, where the repeat unit is vertical. Is there a way to rotate the index of the bracket? In my attempt, it is rotated by 90 degrees and it is also on the left side; ideally it would be on the right. \documentclass{article} \usepackag...

I have a collection of lines ordered by pairs of points, as below, and wish to get a MeshRegion from them, with the mesh edges being the given lines. (That is, the 2-dimensional mesh should be composed of the polygons shown below, with the big space inside taken out.) Now, I don't want to write e...

I am trying to create an ll with awk pipe alias. Trying to escape the apostrophes using the following anwers. alias lh= `ll -h | awk {'print $9, \"-\" ,$5, \"-\", $8, \"-\",$7, $6'}` But it doesn't appear to work. console output for bash and zsh is the same. awk: cmd. line:1: {print $9, \"-\"...

I am trying to draw cyclobutane with chemfig \documentclass{standalone} \usepackage{chemfig} \begin{document} \chemfig{H_2C?[a]-CH_2-[:-90]CH_2-[:180]H_2C?[a]-} \end{document} How do I get rid of the "little piece of bound" overlapping the carbone at the bottom right corner ?

I wish to represent the CKM matrix \[ V=\begin{pmatrix} 0.974 & 0.225 & 0.003 \\ 0.225 & 0.973 & 0.041 \\ 0.009 & 0.040 & 0.999 \end{pmatrix} \] visually. That is, insert correct sized boxes instead of numbers. Something like this. How can I achieve this?

"And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ. " KJV Matthew 1:16 Considering that the Holy Spirit is feminine in Hebrew and the genealogy was always described in the male lineage, does the pronoun refer to Mary or the Holy Spirit as Father?

While studying Pressure, I came across such a question: A nail is driven into a wooden board by using a hammer. The impact of the hammer on the head of the nail produces a thrust of 25 N. If the area of the head is 0.5mm² and of the tip is 0.1mm², find the pressure on the head and on the tip of ...

I was playing with the Fibonacci sequence in binary like so (note that the binary representations are written here from smallest bit to largest bit): 1 1 1 1 01 2 11 3 101 5 00...

I have some shadowed symbols. How do I list all the contexts that they are in? For instance, consider symbol x which is in contexts: package1, package2 BeginPackage["package1`"]; x["package"] := "package1"; EndPackage[]; BeginPackage["package2`"]; x["package"] := "package2"; EndPackage[]; attemp...

I have a paint thinner that contains 60% toluene and 40% acetone. I would like to obtain some more-or-less pure toluene. Considering the big difference in boiling points (110°C toluene vs 56°C acetone), and because I only need the toluene and not the acetone, I just tried to pour the paint thinne...

How to find $\lambda_3(A)$, where $$A = \{ (x,y,z) \in \mathbb{R}^3 | z^2 < \frac{x^2}{4} + \frac{y^2}{9} < 2z \}$$ I know that measure of set A is given by $\int_A 1 d\lambda_3$. I suppose that here I should use Fubini Theorem, however I can't figure out how to get the limits of integration. Wh...

I have written a python script to do global optimisation on interatomic potential (IP) using Metropolis Monte Carlo. I have attached the part of the script which is the Metropolis MC part. I have plotted the plot: IP energy (no Coulomb interaction in the energy) as a function of step number (from...

I am trying to solve partial derivatives on Mathematica cloud. I checked the tutorial provided by Wolfram. And it says I can input differentiation variable by ctrl + _. However, whenever I am trying this chrome shortcut is working and just pressing control is not giving me any reaction. Is is a p...

*Disclaimer - I have very little knowledge of semantics, and I am mostly just a phonetics enthusiast. Thus, my question and the way I explain it may be unprofessional or may lack linguistic rigor. I'm a teenager, and I'm from the American Midwest. One feature famously characteristic of discourse ...

As I mentioned in the question title, I want to generate specific uniformly distributed samples. I need them to model a real world scenario. For my real data, I estimated a function, which approximates the auto-correlation function by a e-function. I also modeled a distribution model for my real ...

All I can remember is these small characters doing battle in some cyberspace on small flying ships, only to find their way out into the real world by flying out of the hard drive and proceeding to battle through a house.

Looking at pictures of Titan rockets with solid rocket boosters, the bell is at an angle. Why would they do that? https://historicspacecraft.com/Rockets_Titan.html https://en.wikipedia.org/wiki/Titan_%28rocket_family%29 https://www.enginehistory.org/Rockets/RPE06/RPE06.shtml

I'm trying to install python-is-python3 like I've done many times in the past successfully, but I'm getting the following error now: pip install python-is-python3 ERROR: Could not find a version that satisfies the requirement python-is-python3 (from versions: none) ERROR: No matching distributi...

In Haskell (and probably some other languages or something) zip is a function which takes two lists, and produces a list of tuples by pairing elements at the same index: zip [1,2,3] [6,5,4] = [(1,6),(2,5),(3,4)] If there are extra elements on one of the input lists those are trimmed off and don'...

A colleague just asked me about a file on my computer, and I answered him that the file is not a virus, but I'm doubting if I did it correctly. Let's compare with the sentence "There are no viruses": English Dutch French There are no viruses Er zijn geen virussen Il n'y a pas de virus I...

The book I am working with (Microeconomics Theory by A. Rubinstein) states that: "In the case that preferences are represented by a utility function, preferences satisfying monotonicity (or strong monotonicity) can be represented by an increasing (or strongly increasing) utility function". Can it...

I am trying to obtain a random selection of polygons (e.g., 100 polygons out of 400) with the condition that the selected polygons are not adjacent among each other. Any suggestion on how to achieve this result in QGIS?

For debugging purposes, I need to automatically load a large number of URLs (successively) in a given Firefox tab. More precisely, my goal is to load URL1, URL2, etc., as if the user had typed these URLs in the URL bar and typed return, always in the same tab, and log the network traffic that is ...

I know Anaphora is repetition of a word or expression at the beginning of successive phrases, clauses, sentences, or verses and Epistrophe is repetition of a word or expression at the end of successive phrases, clauses, sentences, or verses. But what would the figure of speech or poetic device be...

This question is motivated by a comment discussion from my previous question. From this article that was linked in a comment: “Perspectivism, or scientific relativism, is never relative to a subject: it constitutes not a relativity of truth but, on the contrary, a truth of the relative.” (Deleuz...

I am currently in the process of handing over my business that is a Waxing spa located in Portland, Oregon to my 18 year old daughter. However, she has decided that our logo needs to change, for the fact it may be offensive to non binary clients and feels that is the reason for declining numbers ...

I have written a two-row equation in this way: \begin{eqnarray}\label{cov} a \\ & =& b. \end{eqnarray} with as a result If I write (\ref{cov}) I get "(10)". Do you know how to create a cross-reference to equation (11) instead? Thanks.