I am at an international conference (ICIAM2019) about numerical methods and am surprised by the prevalence of applications directly relatable to arms research. examples: One award winner holds his talk about the mathematical problem of radar reconstruction/detection of moving objects, within h...

I am newby in Tikz and want to draw a circle with on it 16 circle-shaped nodes. Each slide increment would shift to the next node rightward or leftward ( an example with both should be fine), while highlighting it (the highlight should be about the current position/node). Anybody could help me ac...

Suppose we send out email verification to new subscribers that where they have to click on a link to verify their account. Suppose they forget to verify it, and later try to login. Should the error message say "Your user name or password is incorrect?", instead of letting them know that they ha...

I added a new phone line and someone called claiming to be the previous owner of the phone number. He requested that I forward information a text message (in all likeliness 2-factor authentication). Naturally, I refused the request. I do not think that they are too happy with the refusal. Are...

GPIO = digital + analog pins; PIO = only digital ? EDIT: PIO defined in datasheet as "Programmable input/output, also known as general-purpose I/O"

I've heard most non-subsaharan africans have neanderthal DNA with it being more prevalent in northern regions, that sometimes 1-4% of the DNA has neanderthal origins. Speaking strictly scientifically, would it be possible through selective breeding to breed an individual where the majority of t...

My players are currently in a naval battle. The wizard used Disintegrate on the enemy warship's hull and now water is getting inside the ship. I remember reading something about that in the Ghosts of Saltmarsh book, but when I tried looking for the rule I just couldn't find it again. Are the...

I have been running several linear mixed effects models for some data of my current project, and now I'm moving on to different data I have. I say that because I'm in a mindset to use LME, and didn't think about good ole ANOVA, though I don't think it's appropriate here. Here's my design: For t...

If a person is sent out of their hermetically sealed community and in the process becomes immune to a deadly disease. When the person returns will the immunity make them a carrier and infect/kill all of the non-immune citizens? How would they quarantine and deal with that possibility?

In the burial place of King Silo of Asturias there is an inscription that reads SILO PRINCEPS FECIT (King Silo made this). The first letter is found in the very middle, and from there one reads by going in any non-diagonal direction radiating outward. The final letter is found on all four cor...

I've been using pandoc and emacs to convert beamer presentations to markdown format. In the beamer presentations we highlighted certain code in example code blocks red. Pandoc has left me to get rid of these by hand. I have been trying to use M-x replace-regexp to find all $\alert{...}$ and repla...

The place I worked got shut down for safety. A friend of mine was killed, and I was hurt pretty bad another time, and it left me with very obvious scarring where my skin is much lighter around the scar. Because it's on my arm and hand, I can't hide it easily. Should I wear gloves or something?...

You all have us, but you don't know why. Our much more useful cousins are waiting right nearby We can't do much, but we're sensitive things. We can hardly stand up to the abuse that you bring. You run us straight through without second thought. Do you stop when we ask...

The Druid Circle of Dreams gives, at 14th level, the Walker in Dreams feature (XGtE, p. 23). I'm unsure about when it is used. It states, "when you finish a short rest" and "once you use this feature, you can't use it again until you finish a long rest". The game allows for two or three short r...

Power supply units will often be greedy and block access to adjacent outlets in a power bar. A simple solution is to use 1/2 ft or 1 ft (15cm, 30cm) power extension cords to keep all outlets in a power bar available. Yet my hunch tells me that doing so increases the fire risk. Could someone wi...

I am new to LaTeX and found a helpful custom command for repeating text n times here. Below is an example use \documentclass{minimal} \usepackage{pgffor} \newcommand{\myrepeat}[2]{\foreach \n in {1,...,#1}{#2}} \begin{document} \myrepeat{6}{x} % prints xxxxxx \end{document} My goal is to pas...

I was looking at how beats work. You use a amplitude wave $A = \cos\left(2\pi f_1x\right) + \cos\left(2\pi f_2x\right) = 2\cos\left(\frac{2\pi x\left(f_1-f_2\right)}{2}\right)\cos\left(\frac{2\pi x\left(f_1+f_2\right)}{2}\right)$ (frequencies $f_1$ and $f_2$). According to Wikipedia, "Because t...

If one overloads a card such as Mizzix's Mastery to recur a graveyard full of instant/Sorceries, including a card with Storm (Grapeshot). Will Storm trigger for each spell you're also casting from the graveyard? As I understand storm is an on-cast trigger, so does order stacking matter in this in...

I fixed a bug recently. In the following code, one of the overloaded function was const and the other one was not. The issue will be fixed by making both functions const. My question is why compiler only complained about it when the parameter was 0. #include <iostream> #include <string> cl...

I have been trying to write a routine MyHead and MyPart which would have the following properties. MyHead[2+3] evaluates to Plus MyHead[(2+4)[10,11]] evaluates to 2+4 (and not 6). MyPart[f[2+3,10+11],1] evaluates to 2+3 MyPart[f[2+3,10+11],2] evaluates to 10+11 Ideally, this coul...

I'm making a fantasy world and wanted to incorporate curses and geases into the story. When I say "curses" I mean two types, but mainly this: The type where you write your curse and either: perform a ritual, break it, or maybe bury it. But the classic "fairy tale" curses (the kind where a witc...

Firbolgs get the Firbolg Magic trait (VGtM, p. 107), which lets them cast Detect Magic. Normally, Detect Magic is able to be cast as a ritual. Can this version be cast by a Druid as a ritual, or can it only be cast normally as a free once-a-day spell?

A few years back, there was a lot of news coverage of the increase in "birth tourism" (especially Russian and Chinese exploitation of it). Basically, people would come to the US very late in their pregnancy to have children with US citizenship, and then return to raise these children back in the...

I have this matrix with 3 sublists: d = {{1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0}, {0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1}, {0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0}}; For learning purposes, I try to replace integer 1 (randomly 3 times) in each sublist with 0. The output can be like this after replace number ...

Got a window bench put in, but need a way to direct the air from the old baseboard vent register hole to out the front of the bench. NOt so sure a box store is going to have the proper vent duct parts I need in the correct shape. This guy online makes something exactly for it but it'll cost $72 s...

Are there any saints that should have died but didn't, not like they dodged a moving train, but rather something like were stabbed in the heart but didn't bleed, or something. And when they did die, how did it happen?

What do you call a statistical mean that is calculated from upper and lower extremes in any given dataset? For example, if you have a set: { -2, 0 , 8, 9, 1, 50, -2, 6} The upper extreme of this set is 50 and lower extreme is -2. So, average of the extremes would be (-2 + 50 / 2) = 48/2 = 24 ...

I'm training in a C172 for my PPL. My flight instructor recommended that I keep my checklist in one hand (so that I can keep looking outside with my peripheral vision) and turn the magneto key with the other. The other day another instructor told me that the checklist should be on my lap and my...

Before the Quidditch World Cup, Mr. Crouch Sr. says: “Oh and I’ve been wanting a word with you too, Arthur,” said Mr. Crouch, his sharp eyes falling upon Mr. Weasley. “Ali Bashir’s on the warpath. He wants a word with you about your embargo on flying carpets.” Mr. Weasley heaved a deep s...

I realized that, any number $k$ with $n$ digits, and when $k$ is squared, i.e $k^2$ will have $2n-1$ or $2n$ digits. Per example, let $k = 583$, thus $n = 3$ and the digits of $583^2$ are $2n$. But I started thinking, how can I narrow the result to be more precise? But, I asked myself. How can...

This is not my puzzle, and I don't remember the source, but I don't see it posted here yet, so... A subway station has three escalators running side-by-side. One escalator only descends from the street to the subway platform, and the other two escalators only ascend from the subway platform to t...

I know there are a lot of geostationary satellites out there, but I'm wondering - are there any geosynchronous satellites that are not geostationary (ie - have a notable inclination to their orbit)?

Are there any test suites available for the small programs usually shipped with the operating system? Specifically, programs like cp, cat, dd etc (anything in /bin/) on Linux or BSD; OpenBSD being the preferred option. I know that md5 has a testing script built in however I can't find any others....

Internet consensus seems to define "high concentration" for Beer's Law as >0.01M. If one has a solution at higher concentrations than that, but the absorbance vs. concentration is still linear, is it valid to use Beer's Law to calculate concentration from absorbance data (assuming that the concen...

小島：塾なんかやめればいーじゃん オレ家庭教師にしたぜ 伊藤：うざいんだ　家庭教師って 部屋で2人っきりてのがどーもな I am struggling with the bolded phrase, I think he says something to the meaning of "What are you going to do with just two people in a room" but think I may be missing something because I am not sure if どーも can be interp...

How can I change a citation like Acharya et al. 2002 found that apples can come in a variety of colors. to one with a brackets only around the date Acharya et al. (2002) found that apples can come in a variety of colors. I'm using the chicago-authordate style, and couldn't find a rele...

By evaluating some Mathematica commands, I wish to get the equivalent effect as selecting Delete All Messages on the message window.

I'm trying to translate the following English into Japanese: "The only thing more troubling than the silence were the whispers that followed." What I've come up with is: 沈黙{ちんもく｝より悩｛なや｝ましいのは継｛つ｝ぐささやきだけだった。 But it feels clunky. Would something like: 沈黙{ちんもく｝より悩｛なや｝ましいのは継｛つ｝ぐささやきしかなかった...

Note: If the emoji charactres of this question and its answers are borked, doubtful and what you can see are mostly boxes (like □ or �), I took a screenshot for you. Here is a story. It has 12 parts that were scrambled (each part in one line). The title shows up in some part of the story, ...

I notice departments often hire graduate students as teaching assistants. I'm curious why departments do this instead of hire a lecturer to do the teaching. I'm sure this is helpful for the GTAs, since they're 1) getting paid and 2) getting teaching experience, but if the department is hiring GT...

How did the author jump from the second equation to the third equation? I suspect there’s a rule I’m forgetting that allows for this, any help is appreciated.

A little bit of background, I'm coding an evolution game with a friend in C++, using ENTT for the entity system. Creatures walk around in a 2D map, eat greens or other creatures, reproduce and their traits mutate. Additionally, performance is fine (60fps no problem) when the game is run in real ...

Using bitcoin-cli decoderawtransaction I see results like... { "txid": "d2183b3ea763f41a30ec5ba6fbf6e5f32e0ca6a5e8761249c533fe22190f71f1", "hash": "d2183b3ea763f41a30ec5ba6fbf6e5f32e0ca6a5e8761249c533fe22190f71f1", "version": 2, "size": 225, "vsize": 225, etc... Why is the "hash" ...

It’s my second time playing D&D and I’m playing a bard this time around, so I’ve been doing some research on the class. I don't have the Player’s Handbook yet, so I do all of my research on websites and I always double check to make sure it’s a 5e cite. I came across something called “tales of o...

I understand that the three dimensions each have their own axes, for lines, planes and volumes, and that 4 dimension has an axis but it is complicated and hard to determine, but from what I understand is that it is there. So I was wondering, disregarding their complexity, do Higher-Dimensions su...

Let $0<x < y < 1$ be given. Prove $$4x^{2}+4y^{2}-4xy-4y+1 + \frac{4}{\pi^2}\Big[ \sin^{2}(\pi x)+ \sin^{2}(\pi y) + \sin^{2}[\pi(y-x)] \Big] \geq \frac{1}{2}$$ I have been working on this problem for a while now and I have hit a wall. I have plotted this and it seems to be true. I also tried to...

I'm from the USA, where we drive on the right side of the street. When walking, I always felt like heavily trafficked areas manage themselves by imitating the auto traffic (usually). Pedestrians approaching each other on the foot path avoid collision, typically, by veering right. I haven't spen...

While on the moon, either outside or inside the lunar module, could the astronauts see the command/service module in orbit?

I am referring to this scene (starting at the 0m37s mark) in Star Wars, Episode V: The Empire Strikes Back. This seems like a very sophisticated prop glove, but there is significant visible depth to the "cavity". How was this filmed?

I am looking for a taxonomic dataset that would allow me to links tree genuses (or species) to families. In particular, I am interested in the tropical species found in the Amazon. I found a long but not exhaustive list on Wikipedia: https://en.wikipedia.org/wiki/List_of_trees_and_shrubs_by_taxo...

Euler's totient theorem states that if $a$ and $n$ are coprime positive integers, then: $$a^{\varphi(n)} \equiv 1\;(\mathrm{mod}\;n)$$ So if $k$ is a given positive integer, which satisfies: $$\begin{cases} a^k \equiv 1\;(\mathrm{mod}\;n)\\ k\leqslant \varphi(n) \end{cases}$$ Does it necessarily...

Today I was attempting to send a Lightning Network payment via c-lightning, version v0.7.1-64-gbb30104, using a channel I established in 2018. Strangely, my payment kept failing even if the destination was routable. Finally, I noticed the reason was a relatively large disparity between spendable...

I'm trying to write test case for some corner case, for input of type int64_t, following line won't compile: int64_t a = -9223372036854775808LL; The error/warning is: error: integer constant is so large that it is unsigned [-Werror] I thought the number is out of range, then I try to: std:...

I have an abstract class called sessions. Lectures and tutorials extend sessions. Then I have a class called enrollment which holds a list of sessions (Lectures & tutorials). How can I loop through the session list in Enrolment and return a list of Lectures only from the session list? My next qu...

I came across the following conjecture, reading a recent paper in the Monthly, an orthogonal matrix of order $n\neq 0 \pmod 4$ has a nonnegative (up to a scalar) row vector. It should be straight in dimensions $2$ and $3$.

Introducing the Isometric Nonogram! α) "Boar"ing Definition [oink] Column: Blue Part + Green Cell Row: Yellow Part + Green Cell Adjacent/ Continuous cells: Purple Cell + any of the Orange Cells β) Clues All clues are provided. Only one colour, red is needed for this ...

Three players are all in, and two tie for the win. Does the loser pay both players the full amount of their chips bet?

i just want to change some request params by using beforeExecute plugin so can i do same.... ? etc/di.xml ** <type name="Magento\Customer\Controller\Account\CreatePassword"> <plugin name="create_password_bug_fixed" type="Vendor\Base\Plugin\Account\CreatePassword" sortOrder="1" /> </type> ...

In D&D 3.5, there exists a hierarchy of sources as a rules concept so that if something in one text contradicts a passage in another one of the sources may officially take precedence. An important benefit of this often lampooned publication paradigm is that the Core Rules-- the PHB, MM, and DMG-...

Sometimes, it so happens that I do some research for a story and find that a major plot point could never work in real life. At this stage, I can either continue with my impossible (for a non-fantasy, non-scifi setting) idea, or scrap it completely. This happened to me earlier while i was writin...

I was thinking of a hypothetical species of snakes that join together for protection called Ladôni, due to their habit of mobilising in massive beds which make them resemble a large multi-headed snake. Ladôni often feeds on dead carcasses although, they'll sometimes hunt young, old, sick or injur...

The documentation for $Pre gives the following example SetAttributes[saveinputs, HoldAll]; inputs = {}; saveinputs[new_] := (inputs = {inputs, HoldForm[new]}; new); $Pre = saveinputs; Evaluating the 3 input cells a then b then Flatten[inputs] gives {a,b,Flatten[inputs]} which is the the e...

Often when I go to school on my bicycle the left crank arm starts to loosen up after one or two really gentle jumps. When this happens I just tighten it with the tool I have in my backpack. It went on like this for almost two weeks after which after only one kilometer of riding it starts to creak...

I am working with a unique template index.php file and want to remove the <jdoc:include type="component" /> because I don't want to display the empty space on the home page.

I was finding test points in a schematic of an Analog Devices Evaluation board. In one of the schematic pages, there is a clause mentioned "do not populate test points". Does anyone knows what it means ?

With +fps_max unlimited it still caps with the following behavior: On "Triple Buffered" FPS Locks caps at 60 & g-sync works On "Adaptive" FPS moves freely between 60-89 but monitor caps refreshes 60 (my monitor says it's hardware refresh rate with hardware buttons & I see tearing) On "Disabled...

Exception.log file Error: {"exception":"[object] (ReflectionException(code: -1): Class Magento\Framework\App\Http\Interceptor does not exist

Why doesn't Venus have a magnetic field? How does the speed of rotation affect the magnetic field of a planet?

I read in the Sitecore docs that setting Sitecore.Analytics.Lookups.IpHashProvider stores the IP addresses in hashed and setting Analytics.RedactIpAddress to true sets all IP in xDb to 0.0.0.0. So even if we configure this, will personalization still work? Or are these configurations irrelevant ...

Consider the following information coming from Microsoft SQL docs pages: The SQL Server Database Engine optimizes storage of bit columns. If there are 8 or fewer bit columns in a table, the columns are stored as 1 byte. If there are from 9 up to 16 bit columns, the columns are stored as...

I wanted to detect if I have a member in a simple POD struct and after some searching and merging some methods I found on the web I've come up with this solution: #include <iostream> template<class...Fs> struct funcs_t{}; template<class F0, class...Fs> struct funcs_t<F0, Fs...>: F0, funcs_t<Fs...

IMHO, some math books published by the German company Hanser have a very pleasing layout. I'm attaching an example below. (Screenshot from Google Books which I hope is fair use.) I guess this was done with LaTeX but I'm not very good at figuring out fonts from just staring at them. Which sett...

I have read about how the electron was discovered on Wikipedia, and they have said that Thomson and his students performed experiments which suggested that cathode rays were negatively charged "particles". But even after reading about his experiments I am unable to understand how he came to the c...

My output of command is like: File Size : 23 kB File Size : 9.8 kB File Size : 9 kB File Size : 128 kB File Size : 921.8 kB How to extract from this to this: 23kB 9.8kB 9kB 128kB 921....

I am studying the book Electric Circuits by Nilsson & Riedel. There I learned about "summing amplifiers" and how to derive equations by applying KCL at inverting input of the op amp. I see that solving equations result in this "voltage adding" behavior but I couldn't stop myself asking "Doesn't...

My document has 2 columns. I am trying to create a table that has a single column (i.e. a single entry in each line) but can split across both columns of the document, and even go to the next page. I am using supertabular, which I only half understand, and at this point, I have written this \doc...

In the last step of Kjeldahl method, the unreacted $\ce{HCl}$ in the solution is back titrated with a standard $\ce{NaOH}$ and the concentration of $\ce{HCl}$ that has been used to neutralize the ammonia is then calculated. However, other than $\ce{HCl}$, there also exist an acid in the solution ...

Given a probability measure $\mu$ on the interval $[0,1]$, the linear operator $$ T_\mu \! f(y) := \int_0^1 f(yx) \, d\mu(x) $$ takes the space of continuous functions $f: [0, \infty) \rightarrow \mathbb{R}$ such that $f(0) = 0$ to itself. Assuming that $\mu$ is not the delta function at the or...

Q: How can I create a table which contains a continuous numerating list with each item in a new row. So I can insert content for the other columns in that row. I use luatex. The result should look like this (Word): I tried it with enumerate and came up this idea which doesn´t work (look at the c...

How important are the author's mood and emotions while writing a story or describing a scene? For example, while writing an erotic scene, is it important for the author to feel the same way as they expect the readers to feel when describing the scene? Or for another example, should the author ...

I have two raspberries (model 2 and model 3B+) and two sd cards. I wanted to swap the cards. The card from model 2 is not recognised in model 3B+. There is no green LED which indicates that the Pi cannot read from the sd card. The other way around is working fine showing that it is not a pr...

I need to read a remote file using FTP and process it and insert the processed data to a PostgreSQL database in another server. The below code is working fine, but i want some advice to modify few things. In this line i don't want to write the actual details, I want that to be hidden from my s...

I have just started with Arduino and C++ so I apologise if my question is very basic. I am trying to use tone() with a passive buzzer to create a sound while also using the IRremote library for a remote. However, whenever they are used together, it gives this error: Tone.cpp.o (symbol from p...

How to get following loop output using pure functions such as NestList? For[i = 0; v = 0, i < 4 && v < 4, i++; v++, Print[x^i + b^v]] and the output is 2 b+x b^2+x^2 b^3+x^3

I am looking at this for a few minutes now and could not find a thread mentioning this. I wanted to query currently used space and available space from a database on SQL Server. The numbers I query should match the numbers I see, when I open the properties dialog on a database in SQL Server Mana...

How do you solve the problem of pie charts always having the possibility of really low values (like 0.1% or 1%) and thus really small slices. It becomes especially problematic when you want to show % labels on top of the slice.

Why ReplaceAll does not work in this situation? id = {{1, 0}, {0, 1}}; sx = {{0, 1}, {1, 0}}; sy = {{0, -I}, {I, 0}}; sz = {{1, 0}, {0, -1}}; s = {id, sx, sy, sz}; p[t_] := {p0[t], p1[t], p2[t], p3[t]}; In[1]:= Sum[p[1][[i]]*s[[i]].sx.s[[i]], {i, 1, 4}] /. p[1] -> {1, 0, 0, 0} Out[1]= {{0...

I am currently trying to build a flow chart to visualize all tests there are to tell whether an ordinary differential equation is solvable and how to solve it. This is for tutoring purposes. The inspiration for this project comes from another flowchart summarizing all tests to tell whether an i...

I have been working for a company for around 9 months now and in that time I have only had 3 months where I have not had an ill day. I feel that this is because i'm typically prone to becoming ill. I do my best to eat correctly and take vitamin tablets to ensure I get all the nutrients that I nee...

The price of the stock XYZ follows a brownian motion pattern with starting price = 10, μ = 0 and σ = 20 (on annual basis). What's the probability that in 6 months the price is less or equal to 8? Also i must solve this with paper and pen (I can consult the Normal distribution tabel)

I understand that an observer outside the event horizon (EH) of a black hole (BH) will not see anything disappearing from outside the EH - only the effects of the time dilution near the EH. Assume that a large number of objects are on its way towards the EH and the last objects can observe all ...

Both Google ngram and Cambridge Dictionary tell me that "manky" nowadays used to describe something dirty, as in it's "so old and/or used that it became dirty." What I am curious about who you're more likely to hear this word from? Would a granny who chastises her grandkid to wash his hands use...

If I was to apply power to a 3 phase stator, which in turn creates a magnetic field that's projected onto the rotor (with magnets), and (in a friction-less world) would cause the rotor to rotate (bearings on the forward and aft of the rotor). If the rotor was to become jammed/stuck/no longer ab...

Each BIP (Bitcoin Improvement Proposal) has a assigned number. For example BIP-2, BIP-42 and BIP-152. How does this number get assigned and by whom?

In the spirit of the What is a Word™/Phrase™ series started by JLee, a special brand of Phrase™ and Word™ puzzles.Template taken from Rubio. Finally made a formal What is a Word puzzle after the Grammy puzzle! If a word conforms to a special rule, I call it a Romeo Word™. Use the following ex...

I am getting the internet connection from my local area ISP. I want to use two routers on this connection: [Router 1] for general mobile device WiFi usage and [Router 2] solely for my PC for online gaming via Ethernet. My reasoning for this is that when I enable WiFi on [Router 2] it gives me hig...

The following must be wrong, since it shows that every field is perfect, which I gather is not so. But I can't find the error: Suppose $E/K$ is a field extension and $p\in K[x]$ is irreducible (in $K[x]$). Then every root of $p$ in $E$ is simple. Proof: Suppose otoh that $\lambda\in...

I have been married for almost 5 years. My wife and I have a son who just turned 3. At the beginning of our relationship things seem to be really on track but since our son arrived, i've been battling constant negativity, double standards and agressive criticism up to a point that i'm seriously t...

I am doing this work by hand, but it takes a lot of time and I make several calculation errors, so I was thinking to make Mathematica to calculate this for me, but I am stuck at the very beginning. I am working with tensors like this: $XXV_{ijk} = \dfrac{1}{6}(X_iX_jV_k+X_iX_kV_j+X_jX_iV_k+X_kX...

not realy my field at all, so I want to be safe. So I have an computer appliance that only accepts a 2-pin kettle power cord (Uk plug type). I don't have a 2-pin available at the moment only a 3 pin. The third pin that is missing is the ground connection, so would it be ok for me to use the 3-p...

I have the feeling the answer to this will come down to ''impossible'' but let's ask anyway to be sure. We know gas Giants have no solid surface and if you tried to land on one you would fall into the planet till you reach the solid core (at wich point you would have most likely been crushed in...

This answer explains that from the time they suited up "in the Suit Lab before launch" until the time the capsule started depressurizing during ascent, the Apollo astronauts were breathing 100% oxygen at slightly above 1 bar (1 atmosphere). 100% Oxygen at 1 bar (100 kPa) partial pressure is tox...

All of the below will be done on GCC 9.1 using godbolt, in x86-64, using -O3. I have this code: struct Base { Base() {} double foo; int bar; }; struct Derived : public Base { int baz; }; int main(int argc, char** argv) { return sizeof(Derived); } https://godbolt.org/z/Oj...

A sandbagger is someone who One who sandbags (misleads about his/her ability level in order to win bets) And sandbagging means hiding the strength, skill or difficulty of something or someone early in an engagement with examples from different sports like grappling, racing and poker. ...

At the end of Avengers: Endgame Tony Stark makes use of the Stones, taking a great amount of damage doing so. Is there a reason why Doctor Strange did not use the Time Stone to restore Tony in the same way he restored an apple?

If we have a raster, say of integer elevation data for a country, and one polygon shapefile, say of 300 river basins in that country, with a unique name for each, how would we most easily get output like this for them all? basinID, gridcellelev a, 320 a, 321 a, 320 b, 17 b, 18 b, 19 The most...

Humanity just disappears tomorrow, let's say it is like the Thanos-snap but it kills everyone. How long until the last unambiguous evidence of our existence has disappeared? What was this last relic? The faint spectres of electromagnetic signals which will travel space for ever, odd isotopes rati...

Which one is correct? I'm coming please be waiting. (Also, is waiting gerund here?) I'm coming please wait.

Note: All the similar questions are answering this from the perspective of the shell (e.g. Is javac available? java -version or which java). I'm looking explicitly for the perspective of the currently running JVM. There are programs that require to be run from within a JDK's JRE, not "just" a JR...

The Wikipedia article on visa requirements for Somali Citizens lists three countries that refuse admission to Somali citizens: the US, Australia & New Zealand. I know the US travel ban is true—it was all over the news— but I had never heard of Australia and NZ having a travel ban for Somalis? I...

Say I have two scripts: script1.sh: #!/bin/bash version=2.6 log_file="$HOME/log-file-version-$version.log" touch $log_file &>/dev/null echo "log to my log file from script 1" >> $HOME/log-file-version-?.?.log gnome-terminal --tab --active --title="script2" -- sh script2.sh script2.sh: #!...

I want to generate random positive hermitian matrices, I start with such a code rho11R = Table[RandomReal[], {i, 1, 4}]; rho10R = Table[RandomComplex[], {i, 1, 4}]; Do[If[rho11R[[i]] - rho11R[[i]]^2 - rho10R[[i]]*Conjugate[rho10R[[i]]] >= 0, Nothing, {rho10R[[i]] = RandomComplex[], --i...