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Here's a sentence I don't understand:
I buy the stock when it is ripping.
The sentence is talking about buying a stock (i.e. equity shares) when it is "ripping". What does "ripping" mean?
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Wife notice an odd smell (sort of like chlorine) coming near an outlet last night. I immediately shut off the breaker and took off the covers to investigate. The last homeowners put in one of these outlets with the USB – A ports in them. It seems that one of the neutral wires slipped away from t...
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I am reading Dante's Divine Comedy. In many cantos, souls predict Dante's future, and it is said that God knows everything past, present and future and that souls can enter heaven only if they are chosen by God with his grace.
I wonder where is free will in all this?
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Given one International Securities Identification Number (ISIN), how can I get the list of all the stock exchanges on which it is traded, along with its ticker symbols if any?
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In "The Blue Scarab" in Dr. Thorndyke's Case-Book by R. Austin Freeman, Mr. Blowgrave, whose deed-box was stolen, was talking to Dr. Thorndyke:
"The story concerns my great-grandfather Silas Blowgrave, and his doings during the war with France. It seems that he commanded a privateer of which he ...
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I have an ADXL335 accelerometer connected to my Arduino. Here is some code that I am running based off a tutorial:
xaccl[a] = float(analogRead(xpin) - 345);
yaccl[a] = float(analogRead(ypin) - 346);
zaccl[a] = float(analogRead(zpin) - 416);
float length = sqrt((xaccl[a] * xaccl[...3
How do I type XeTeX logo with rotated E in XeTeX itself as can be seen here ?
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From :help ordinary-atom:
ordinary atom ~
magic nomagic matches ~
|/^| ^ ^ start-of-line (at start of pattern) |/zero-width|
|/\^| \^ \^ literal '^'
|/\_^| \_^ \_^ start-of-line (used anywhere) |/zero-width|
I can see from testing that to match something rain\nand in
...
Is it possible to deduce brilliant sacrifices by analyzing a match's PGN along with the corresponding evaluation score after each move? If not, what other non-visual information would be needed to be able to deduce when a player made sacrifices to help his cause?
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What is the ChainOfFools/CurveBall Attack on ECDSA on Windows 10 CryptoAPI (Crypt32.dll)
Could someone provide details?
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I'm trying to get initiated in the mysteries of forcing, and I decided to try and do so both by 'studying their patent' and by 'reverse engineering', hoping that each method will be of some help to the other. Here's a very natural question that occurred to me, and one that might either be 'obviou...
I have a subtitle that is almost as large as the text width. For aesthetical purposes, I would like to strech it a bit so it covers the whole text width, and be more harmonious with the picture below the subtitle. How can I achieve this trick?
Here's a code that show the subtitle:
\documentclas...2
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Here are the following two sentences.
At least one person speaks English.
∃𝑥E(x)
Exactly one person speaks English.
Instead of ∃𝑥E(x), what do I write?
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I'm currently writing a nemo action script in bash, and I need a way to get input from the user.
How?, the terminal isn't showing when running an action script.
is there anyway to popup a query window in the GUI to ask the user for input?
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nix-bitcoin claims on its GitHub repo to facilitate the installing of Bitcoin nodes and higher layer protocols (e.g. Lightning) with increased security? How does it do this?
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Does there exist an algebraic construction of quaternion algebra such that the algebraic properties (such as associativity and distributivity) are immediately obvious?
I am looking for something similar to how the complex numbers are constructed in Galois theory, as an extension of reals:
$$\math...
When $2^x - 2^{-x} = 4$, then $2^{2x} + 2^{-2x} =\hbox{ ?}$ and $2^{3x} - 2^{-3x} =\hbox{ ?}$
I have a doubt with this one. I assume I should use some kind of formula to solve it because if I solve the first equation I get that $x = \log_2(1 + \sqrt5)$ and then I just solve the other two equat...7
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I saw this type of face masks on a 'building tools' store (like home depot), and on the label said, among other things in chinese and spanish, non medical.
In this KN95 Masks Explained mentions
These masks, like NIOSH N95 masks, provide protection from 95% of particles that are greater than .3...
Poetic technique for taking a usually comforting thing in a scary context?
Context:
I was wondering what the name of the poetic technique was, where one takes something which is usually light, comforting and playful and takes into a chilling context.
For example:
Dolls sometimes are programmed ...2
a. He refused to close his bar because of the pandemic.
b. He refused to close his bar because there was a pandemic.
Are the above sentences grammatically correct, and do they make sense?
The intended meaning is:
He had to close his bar because of the pandemic and he refused to do it.
AND NOT
...2
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Let $a_0 = -2, b_0 = 1,$ and for $n \geq 0,$ let
$$a_{n+1} = a_n + b_n + \sqrt{a_n^2 + b_n^2}$$
$$b_{n+1} = a_n + b_n - \sqrt{a_n^2 + b_n^2}.$$
Find $\frac{1}{a_{2012}} + \frac{1}{b_{2012}}.$
Originally I tried looking for a pattern for smaller $n,$ but I couldn't identify anything that was usef...
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I am new in field theory. If we have to show that $E$ is a filed extension of $F$. Then we define a map from $F$ to $E$ and shows that map is injective and ring homomorphism. I found it in proof of some theorems. What is connection between injective ring homomorphism and extension?
Definition ...
I always get a little annoyed when engineers or math textbooks use the word "antilogarithm." Isn't it just exponentiation? Like if $\log(2) \approx 0.301$, then $10^{0.301}\approx 2$ . Why say "antilogarithm?" Is there some subtly different meaning? Am I missing something?
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I am trying understand the schematic for a Waveshare Core 407I board, with an STM32F407IGT6 MCu. What is the meaning of this schematic symbol (labelled COMP.J1 JPAD3)?
Link to full schematic: https://www.waveshare.com/w/upload/4/4a/XCore407I-Schematic.pdf
I've identified it on the board to be a ...
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I would like to mimic the spacing behavior of DeclareMathOperator without using a macro. I would like there to be a space after Spec when I write (in math mode)
\mathrm{Spec} k.
But I would like there to be no space after Spec when I write
\mathrm{Spec} (k).
Is there a way to do this? Sort of...1
This was an idea loosely inspired by a Sci-fi movie that I will not name here. But the relevant part is that it involves an interstellar colony ship landing on a planet and the crew learning that the ship had been submerged in an ocean.
Now there is something that kind of bugged me at the time o...
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Peskin & Schroeder's expression of the Noether current If a (quasi-)symmetry is defined as a transformation that changes the action by a surface term i.e. $$S\to S'=S+\int d^4x \partial_\mu K^\mu(\phi_a),\tag{1}$$ or equivalently, the Lagrangian changes by a 4-divergence, $$\mathscr{L}\to\mathscr...
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So I am reading a book called "Voices from Chernobyl" where witnesses, nuclear plant workers, firefighters and other persons involved in the 1986 accident give testimony of their experiencies.
The very first chapter goes along the lines of the wife of a firefigther that was dispatched for duty on...
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Inspired by this Puzzling challenge, and easier version of my previous challenge.
Challenge
A 2D rectangular grid is given, where each cell is either an empty space or a wall. You start at the top left cell, and you need to exit through the bottom right cell. You can move to one of four adjacent ...
What does indicated time in below graph means?
datasheet
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Q: What kind of nail scissors have a good chance of being allowed in hand (carry-on) luggage in the EU?
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What techniques are there for placing the components on a PCB at a desired height? e.g. so that potentiometers and switches can be both panel mounted and board mounted?
For example, are there adapter components designed to lift other components away from the plane of the board?
Reading the answer...
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This question is related to this one.
I realise not all keyboards have the NumPad, but why do those who do have a NumPad have two sets of keys for numbers ( the numbers above the letters and below the F keys and then the NumPad numbers.)
My logic seems to think a second set would be redundant, th...
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There are some cards, that have activated abilities, that a player can activate when the card is in the graveyard. For example, the ability of Stitchwing Skaab to return it from the graveyard to the battlefield.
However, most of the other card abilities, a player can't activate from the graveyar...
I want to find the word "circle" and "circles" in the list.
list = {"circle" , "picircle" , "circles" }
The regex code I wrote which isn't working:
StringCases[#,
RegularExpression["(/\\b)(\\w*circle\\w*)(\\b//g)"]] & /@ list
The output I want:
{{circle},{},{circles}}
The output I get:
{{},{}...1
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Where were the Men (or rather people) of Lake Town during the Battle of Minas Tirith and Battle for Middle-earth?
Had the Men of Lake Town merged with one of the kingdoms of Rohan or Gondor by then?
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I have a table with an fulltext index on the column named Filecontent.
The table has a row where content contains "W 917". For context, the content column on this rows contains much more than just what I'm searching for.
I don't understand why I'm getting different results depending on whether I'...
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My question concerns the definitions more than semantics.
That is, a family of sets $P$ is a partition of $X$ if the following conditions hold:
$P$ doesn't contain the empty set;
union of all $P$'s sets gives $X$;
elements of $P$ are pairwise disjoint.
Now for an equivalence relation $R$ over $...
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First I want to mention that I've studied telecommunications (here in my country, is very similar to electrical engineering, I've studied circuit theory and electronics), although I've only dealt with small electronics I and they're not my current line of work anymore (now I do more AI stuff, not...
Consider following excerpt from Chopin's Minute waltz in D flat major.
The last bar is the chord of D flat major (tonic).
What is the chord of the penultimate bar? Why is there an A flat and A natural at the same time?
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As per my understanding iptables work on transport layer (layer 4) and any packet filtering that happens is based on the ip protocols for layer 4 like tcp and udp. So if we enter protocols like esp, gre and l2tp in iptables -p option, does that make any sense? Can we filter packets based on layer...
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I recently had a new panel installed and asked for a couple new runs to be installed at the same time.
The electrician used a 14/3 cable (red-black-white) for each of these new runs, informing me that 1A = Red / 1B = Black and 2A = Red / 2B = Black. I think he did this as a favor to me as I told ...
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The problem
I have a regtest network running in 127.0.0.1:18443.
I can access to regtest with user:123.
I would like to use Electrum (v4.0.2) with my local regtest but I cannot realize how to do that.
What I tried
When I run:
electrum --regtest
The Electrum console opens as expected but the st...
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Whatman lists the flow rates for their filters in a unit called a 'Herzberg':
What is this?
I've been searching around and I did find information about Herzberg flow rate testers, for example this old paper on filtration flow rate measurement and this summary of filtration terminology, but I can...
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I have heard "lancer un calcul" as in a way of saying "run a calculation" in informatics. Is this common? Can it be used in other environments?
For example: Could I say that I have "lancé un riz" to say I have rice that is currently cooking in a rice cooker?
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I was watching Steve Brunton's lecture and he pointed out that Cayley Hamilton theorem is not true for every single square matrix, but it's true for almost every of them:
Someone pointed out to me that this might not actually be true for every single square matrix $A$. So, almost every matrix $A...
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I have an entry loop on my homepage that uses {{ entry.url }} that links to the full entry. When I click on the entry, the url looks like this
mydomain.com/$DEFAULT_SITE_URL/the-entrys-slug
Even though my section settings just has the Entry URI Format set to {slug}
Here's my entry loop if you nee...
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We are working on an app that is meant to be on one side of the screen, it is a desktop app for video calls. Right now if you hover the app's window it steals the focus so the user can start typing to search contacts to call or directly use the buttons to do so.
I have read many articles and UX p...
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I have learnt that in a matrix, if there are complex eigenvalues, they should come as conjugate pairs. Also, I know that, in a diagonal matrix, eigenvalues are the diagonal elements.
So how about the following matrix?
$$\begin{pmatrix}
i & 0\\
0& 2
\end{pmatrix}$$
Shouldn't the eigenvalues be $...4
I have noticed in some Victorian and Edwardian texts that Scottish and Irish names beginning with "Mac" or "Mc" are usually written as "M" plus an apostrophe. An example I came across recently was from 1845, where a person was referred to as John M'Turk rather than "McTurk" or "MacTurk". What was...
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I was experimenting on dough for chapathi, which is basically wheat tortilla. This is how I normally prepare it,
Mix whole wheat flour and salt with room tap water, often 20 to 30 degree Celsius .
Knead with oil until I get a consistent dough.
Immediately press with a rolling pin and cook in a pa...
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In the state of quantum superposition, as most famously illustrated by Schrodinger's Cat, we have a well-defined set of probabilistic outcomes that is not determined until observed. The cat is then said to "really" be in both states at once, while unobserved.
How does this differ from any other p...
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This question concerns D&D 5e. The relevant ability, with my emphasis, is as follows:
While in bat or wolf form, Strahd can't speak. In bat form, his
walking speed is 5 feet, and he has a flying speed of 30 feet.
In wolf form, his walking speed is 40 feet. His statistics, other
than his size and...
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What will be the sensible extension of the 2D Ising to some curved surface - for instance, for a sphere or even something non-orientable?
For the flat space energy is given by well-known expression:
$$
E = \sum_{i, j} J s_i s_j + \sum_ih_i s_i
$$
What would make sense for the curved surface, shou...
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Very basic question here.
I have been learning a ton about Ohm's law, and I don’t seem to ever be able to completely understand it.
One of which I am getting particularly confused about is voltage drop and Ohm's law.
According to what I know about Ohm's law, if you increase the resistance, the cu...
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The spell, Energy Vortex, is found in:
Complete Divine (p.164) as a 4th level Cleric/Druid spell (published May 2004)
Spell Compendium (p.81) as a 3rd level Cleric/Druid spell (published Dec 2005)
In both books, the spell does the exact same effect/range/damage (choice of acid/fire/electricity/...8
I have just learned about the new function Splice from this answer. It turns out that this function used to have a completely different usage! (See below.)
To me, this seems dangerous, to deprecate a symbol and then two versions later introduce completely different functionality to that symbol. ...
