Suppose you can make a rectangular maze, where each cell (apart from the bottom-right) can contain an arrow in one of the four directions (up, down, left or right) of your choosing, except for those on an edge or corner, which must not point out of the maze.
A ball is then placed into the top-le...
What is my situation?
I am working in a Dev Ops capacity for a service that manages jpeg files online. We had an unfortunate deploy and our media files (jpegs) are completely gone. I anticipate that our loss is probably simple and may be recoverable. I think somehow that the directory that conta...
I'm a beginner in networking stuff and just wondered if Static Routing has any use in large networks ? How about small ones ?
In which cases we prefer to use static over dynamic routing ?
I searched for this one and the most reason i saw people mentioned was resource usage problem with dynamic r...
There's a lot of talk on the internet that mercury amalgam fillings are toxic and should not be done. In the 20 years since my first cavity I've only received metals-free composite fillings. My current dentist informs me that composite fillings are qualitatively better, while disregarding the hea...
If I were to describe Waterloo from Napoleon's point of view, it would be very different from that same battle from the point of view of a soldier, or even a cavalry lieutenant in the front ranks. Napoleon's fate is decided on that battlefield as much as the lieutenant's. Napoleon has a better un...
I'm running a premade campaign which states that all the rooms are filled with a gas that makes the whole area lightly obscured (disadvantage on Perception checks).
A character with darkvision without light, treats areas of mundane darkness as dim light. Dim light counts as lightly obscured as w...
I am trying to build a raspberry pi gameboy emulator with a custom board inside of a gameboy adv sp shell. I decided to use an open-source board made by some guy on the internet and I will be modifying a few things on the board such as the power switch to an OEM power switch for authenticity.
My...
MWE;
\documentclass[tikz,border=10pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{datavisualization}
\usetikzlibrary{arrows,calc}
\usetikzlibrary{shapes,positioning}
\usetikzlibrary{decorations.markings}
\usetikzlibrary{datavisualization.formats.functions}
\def\mytypesetter#1{
\pgfmathparse{#1...
This is a registration and login script I have made in Python 3. It uses a MySQL database. In the future I might use it with my Blackjack game and add a row called money, but for now I would like to hear your opinion about this script since I have little to no experience in SQL.
import cymysql
f...
My question is,
Can you spoil a moment? for example, let's say I bring home a gift for my girlfriend and she's very excited to know what's in the box, after I open up the box and show her what it is she responds to me I didn't like it. Can we say that she spoiled the moment? or should I say that...
Most of the people (if not all) follow the psak halacha of a specific Gadol HaDor. But many times, there are halachot which are not presented by a certain Galdol haDor but by another Chacham. As for an instant, Halachipedia.org does not follow the rulings of one specific rabbi but collects all o...
The Dassault Mercure was a French regional jet that first flew in 1971 and received its type certificate in February 1974; it resembled an enlarged, shorter-range 737-200, and was designed to serve higher-capacity short-haul routes. The Mercure was an abysmal failure, with only eleven aircraft e...
I am in a process of camera-ready for the research paper and now paper is in process for camera-ready in publication. I have listed few more reference in reference section of paper which is not reference the text.
for example:
This result1 is cited from [1].
This result2 is cited from [4]...
How are Fiends, Celestials, dragons, etc affected by the antimagic field spell?
I assume they can walk into them. Do they lose abilities, take damage, etc?
The time independent Schrodinger equation
$$-\frac{\hbar^2}{2m} \frac{d^2\psi}{dx^2}+V\psi = E\psi$$ can have many different solutions of $\psi$ for a particular value of $E$.
For example, if we found a complex solution $\psi(x)$ for a particular value of $E$, say $E_0$, we can write $\psi(x)=a...
I was wondering about this question:
$$ 9 x ^ 2 -4y^2-72x=0 $$
What is the step-by-step process of writing such an equation which, in this case, has the graph of a hyperbola in standard form?
Please excuse me for my messy equation. As I am relatively new to Mathematics Stack Exchange, I do no...
Please forgive me, it's been over 40+ years since I've played D&D and just now trying to reboot the changes. Can someone briefly explain Perception check math?
Assume I'm a 5 year old or an idiot, whichever comes first in your mind.
If a character has a Wisdom of 10 and the DM says "roll a Pe...
President Trump has tweeted that the USA should "fully recognize Israel’s Sovereignty over the Golan Heights" - directly contradicting United Nations Security Council Resolution 497 from 1981.
Can the President effect that "on their own" or would it need some act of Congress?
The first blessing in the Amidah is, of course, avot, where we acknowledge the patriarchs. What is the version of this text in nusach Yodeya? Where do we acknowledge our additional patriarch? Do we say elokei Avraham, elokei Yitzchak, elokei Yaakov, elokei Yitzchak, to preserve the order? Or ...
Let us begin at the beginning
With all my mates and endless spinning
I'm not so hot and not so cold
I'm the sea and the sun, and quite as old
When shove comes to push
In your hand, I'm worth more than a bush
Day in, day out, hidden talents
Up and down, I keep the balance
I give birth to the...
Suppose $(f_n)_n$ is a countable family of entire, surjective functions, each $f_n:\mathbb{C}\to\mathbb{C}$. Can one always find complex scalars $(a_n)_n$, not all zero, such that $\sum_{n=1}^{\infty} a_n f_n$ is entire but not-surjective? In fact, I am interested in this question under the add...
Hi I am Bangladeshi lived in Italy I have a 5 years permesso di soggiorno and 10 year's residence I'd card and tessera sanitaria and codice fiscale from Italy I want to go Japan to meet my friend who live in Japan how I get visa give some information please thankfully
By accident I ran chmod -u filename and it removed all of the permissions I had on filename.
The man page does not reference a -u option. Experimenting I was able to conclude that it removes not all permissions, but just read and execute access, leaving write access intact.
So what does this do...
I've been reading my textbook and two terms have appeared that, after a bit of looking, I still can't seem to be able to distinguish. Here's what the textbook says (McGraw Hill Bio 12, 2011):
After receiving signals from various sensors in the body, the
hypothalamus secretes what are referr...
Hi I found out that my daughter has bought a bunch of thongs and thong body suits and thong bikinis. I also found a bunch of mini skirts and super short shorts. How should I punish her?
I'm using REST API to create Apex Class in Salesforce org. It worked in my testing for multiple orgs, but for a customer I'm getting this error -
Can not create Apex Class on an active organization.
To create the apex class using API, I'm just creating a object of type ApexClass with payload h...
Let A be a non-commutative algebra and let X be some geometric space (such as a topological space or an algebraic variety or scheme). Is there a notion of cohomology ring of X with coefficients in A? What is the correct set up to consider cohomologies with non-commutative coefficients?
If a top...
Found below snippet to pull posts from a custom post type 'pictures' into the home page and date archive page..
Added to functions.php this works for home page:
function add_custom_post_type_to_query( $query ) {
if ( $query->is_home() && $query->is_main_query() ) {
$query->set( 'pos...
Hi i'm travelling to Los Angeles for the first time by myself to visit friends.I would just like to know at immmigration will they get suspicious if I say that I'm staying with friends rather than a hotel to save money since it's my first time visiting America.
My music teacher sometimes tells me too memorize a song, but sometimes also tells me to read straight from sheet music. This confuses me as I am unsure which one is better practice. Is it better practice to read straight from sheet music rather than memorize it?
It may be my stupidity, yet I am unable to understand what the following problem asks
(Q.1 Miscellaneous Examples, Chapter-1: Real Variables).
It says:
What are the conditions that $ax+by+cz=0$,
(1) for all values of $x,y,z$ ;
(2) for all values of $x,y,z$ subject to $\alpha x+...
Idon’t know what it is, but Ifound it at a thrift shop. You put the little white squares that are in the back into it, and look through the lens and you can see the pictures. I found it super facinating and I really want to know what it is called so I can look more into it! Thank you :)
In Line-Dash-Wedge notation, when illustrating that an atom or bond is directed towards or away from the viewer (solid triangle for coming forward, dotted lines for going back), does the location of these lines matter when doing illustrations?
For example, a THC molecule.
The two hydrogen ato...
I have this array of strings var arr = ["ul", "li", "strong", "em", "u"].
How can I make these into DOM Elements one inside another from left to right, first element as the root element. Without using ID because of some reason.
And maybe by using loop for it to be flexible to any number of elem...
I don't know why balance of the address is 0.
when can this situation?
This code
\documentclass[a4paper]{article}
\usepackage[separate-uncertainty=true,multi-part-units=single,list-units=repeat]{siunitx}
\begin{document}
\[\SI{339\pm14}{\meter\per\second}\]
\end{document}
outputs
But I want
\[v_s= (339 \pm 14)\, \si{\meter\per\second}\]
Suppose I render a simple eyeball:
AnatomyPlot3D[Entity["AnatomicalStructure", "RightEyeball"]]
but want to cut it in half using ClipPlanes, for instance to eliminate the left half of the eyeball.
By what principled method do I know how to specify the plane? I tried the obvious
ClipPlanes -
Definition 1. An extension $E$ of a field $k$ is called normal extension if
(i) $E$ is algebaric extension of $k$.
(ii) Every irreducible polynomial over $k$, which has a root in $E$, has all its roots (considered in $\overline{k}$) lie in $E$.
Definition: If $E$ is an exten...
I have such a file with multiple blank lines in vscode
$ tail -n 20 draft3.py
hi = len(a)
if lo < 0:
raise ValueError('low must be non-negative')
if lo == hi:
return None
mid = (lo + hi) // 2
if x == a[mid]:
...
Suppose you're playing in a tournament. For the purpose of filling up your scoresheet, is it improper etiquette to ask your opponent what his/her rating is before the game?
I have an infinite number of dials with red needles that rotate $n\in\mathbb{Z}$ times every second. They all start pointing North.
Will they simultaneously all point North ever again?
Every temple in India has at least one priest. The act of preaching scriptures a recommended act or mandatory act for him?
I have a cylinder-like spiral object as .STL file(figure). What we want finally is to animate Compressing and Stretching of this cylinder(figure). how to do so?
I have a highly left skewed data set with a large range of values (from 1 ~ 10^6) (can't share the actual data for work related reasons).
When I plot the log of the data instead, the distribution looks a lot more like a normal distribution.
Have I stumbled on a meaningful insight in the data ...
I'm currently learning the prove of sum of geometric series on Khan Academy.
I understand the behaviour of the function when |r| > 1, when |r| < 1, when r = 0 and when r = -1, but I am a bit confused by its behaviour when r = 1.
The narrator said that when r = 1, the limit function is undef...
Querying wolfram alpha for the melting point of aspirin (link) returns $\pu{140 °C}$. The Wikipedia page for Aspirin lists $\pu{136 °C}$ instead, citing this book.
How am I supposed to know which figure to cite? And in general, what should I do when I encounter contradicting chemical data?
In Cambridge advanced learner's Dictionary there is an example for "get by":
We can get by with four computers at the moment, but we'll need a couple more when the new staff arrive.
shouldn't this be "arrives"?
In Scala I can describe such ADT:
sealed trait Foo
case class A(a: Int) extends Foo
case class B(b: String) extends Foo
case class C(a: A, b: B) extends Foo
How can I do the same in Haskell?
data Foo = A Int | B String | C A B
It doesn't work, because A and B are not types. Should I use GHC...
I am trying to implement a drag and drop functionality in lwc and I am getting the below code:
<template for:each={leftTask} for:item="task">
<div class="draggable" draggable="true" key={task.taskId} ondragstart={handleDragStart(task.taskId)}>{task.name}</div>
</template>
However, it seem...
I've read all of the relevant questions on here regarding travelling outside the UK without a passport.
As I understand, I, as a British Citizen after naturalisation, can travel to and stay in any EU country without a passport - as long as I have a Biometric Residence Permit. Is that correct?
...
Does collectivism actually exist?
Wikipedia defines:
Collectivism is a cultural value that is characterized by emphasis on
cohesiveness among individuals and prioritization of the group over
self.
If (at least from western Cartesian viewpoint) the subject is the fundamental cognitive b...
I've been doing a task for an interview that I will have soon.
The requirement is to code the following problem in C#.
Write a program (and prove that it works) that: Given a text file, count the occurrence of each unique word in the file.
For example; a file containing the string “Go do th...
I created a new user:
$ sudo useradd -m Ari -p pass123
But when I went to login it said the password was incorrect, I know it's correct because I saved the command line log as a text file.
Other than that, at the same time I also created a group:
$ sudo groupadd testgroup1
and added the ne...
Is there any references on the tensor product of (locally) presentable categories ?
All I know about this is Lurie's book that deals with the $\infty$-categorical version, and a few references that deals with special cases (Grothendeick categories, toposes etc...)
Is there any references that d...
I have been told that rising and falling intonation can change the meaning of a sentence. For me as a non-native speaker of English this may sometimes cause misunderstanding. In the following construction, can be there any differences in meaning in terms of using rising or falling intonation?
...
I recently applied for a US visa and had the interview, where I was told the application wasn't approved pending a medical examination. I have since found out that I could have travelled on an ESTA after all, so tried to withdraw the visa application. However, I have now had an email back from ...
The signature on my driver's license is a unique and identifiable smiley face :-)
I use this signature to sign all legally binding documents. A lot of the time, people reject it, and request an "actual signature". I then show them that it is the same signature as my driver's license, and they...
Recently I've noticed that a lot of mysterious .tar.gz and executable files have spawned inside my Shared folder, and by a lot I mean 466 total.
/Users/Shared $ ls | wc -l
466
I'm the only user on my Macbook Pro and out of the 466, I only recognized 6 of them being folders with an install...
So I'm using this circuit
but when adapter output is disconnected and only midpoint terminal of the transformer is connected the Arduino input pin reads some mV. mid point reads perfect 2.5V. What am I doing wrong?
Context: a Florida roof and gutter is to be replaced, however the fascia wood was rotten and replaced. The plan is to be covered by aluminum fascia and has a drip edge.
When does it make sense to paint the wood boards?
Does it make sense to paint if Aluminum fascia is to be nailed to the board...
Now consider a charged non conducting sphere of uniform charge density , and it as hole of some radius at the centre,
now suppose I apply gauss law
as there is no charge inside the cavity: so no charge is enclosed by Gaussian sphere so electric flux is zero hence electric field is zero
But ...
Let
$$A= \sqrt{93+28\sqrt{11}}$$
if $B$ is the integer part of $A$ and $C$ is the fraction part of $C$, what is the value of
$$B+C^2$$
I tried manipulating it by setting
$$ A=B+C$$
but I can't transform it into the expression, do I need approximate the integer part of A in order to ...
There is a stack made of 6 squares. As you can see there are yellow squares between red ones. The question is what will be the next row like? And why?
Why a symmetric relation is defined: ∀x∀y (xRy⟹yRx) and not ∀x∀y (xRy⟺yRx)?
(I´ve have only found a couple of sources that defines it with a biconditional)
For example, according to Wolfram:
A relation $R$ on a set $S$ is symmetric provided that for every $x$ and $y$ in $S$ we have $xRy \iff...
I am having trouble with deserialising a jsonstring. In my debug I get the error System.JSONException: Unknown field: MyJSON.number. As number is a reserved field in salesforce I replace it with numberRep. I dont get why I get this error.
webservice
@HttpPost
global static void createOpp...
Regarding an example passive LC ladder filter, when I sweep the source resistance Rs, the filter characteristics changes as follows as expected:
On the other hand, if I sweep the load resistance Rload, it seems the characteristics does not change but the DC gain changes as follows:
For ease...
From https://stackoverflow.com/a/40189197/156458
Blocking 0.0.0.0 makes no sense. In IPv4 it is never routed.
What does "routing" a IP address mean?
Why is it the reason that blocking 0.0.0.0 does not make sense?
Thanks.
i want continues in previous post: custom colour wheel
This Minimal Code:
\documentclass{article}
\usepackage[a5paper,landscape,left=1.0cm,right=0.3cm,top=0.5cm,bottom=0.5cm]{geometry}
\usepackage{xcolor}
\usepackage{tikz}
\usetikzlibrary{decorations.text,shadings}
\renewcommand*\familydefault...
Is A=(0,1] a closed or open set?
I think it's an open set because it is not a subset of its interior points. Mainly, $1\in A$ but $1\not\in A^\circ$.
If A is closed, then the complement is open. However, the complement $A^c$ is not open because it is not a subset of its interior points. Mainly,...
How does a game end when your opponent has more tiles to play and is the high scorer? The game ended with the low score a winner?
In ROTK, Chapter 2 of Book Five, "The Passing of the Grey Company," Aragorn tells Gimli and Legolas that he has looked into the Orthanc stone and had a chat with Sauron. He says that Sauron "saw me, but in other guise than you see me here." What was this "guise"? And why would Aragorn appear i...
A box has 24 balls, 4 red and 20 white. One person takes 10 balls and the second the remaining 14. What is the probability that one of the two people picked up the four red ones?
I don't understand wy is this correct.
$$\frac{{20 \choose 6}+{20 \choose 10}}{24 \choose 10} $$
It suddenly turned to have two light bars on the top of the screen how can I fix it and get the files back. I needed to use the Macbook for 3 years for school and I can't afford a new one
I want to create a shell script that will count files ( 1 hr older files ) and if files are more then 1000 then delete all.
For read and delete I am using those command at putty
for count : ls /tmp/ | grep 'ci_session*' | wc -l
for Delete files:
cd /tmp/
find . -name "ci_session*" -exec ...
The recent NY Times article Neptune’s Moon Triton Is Destination of Proposed NASA Mission says (in part):
HOUSTON — Is it time to go back to Neptune?
Scientists representing NASA’s Jet Propulsion Laboratory proposed a spacecraft and mission on Tuesday at the Lunar and Planetary Science C...
If infinitesimal transformations commute as proved eg here, why are the commutators for the generators of the Lorentz group nonzero?
I am a post-doc in economics. I know that rejections are quite usual but I feel very sad (I think more than necessary) because of rejections.
For a paper on which I worked for 3-4 years got two rejections since from last year.
I have already two accepted papers but I am overwhelmed with a rejec...
I just started learning package design. I have finished my artwork and want to send the final file to the customer.
The design has a product window. How should I indicate this layer in Illustrator? How do I tell the printer they have to cut this shape out?
$\mathrm G$ is Catalan's constant.
I recently found the product
$$
\alpha=\prod_{n=1}^{\infty}\frac{E_n(\frac12)E_n(\frac7{12})E_n(\frac1{20})E_n(\frac{13}{20})}{E_n(\frac14)E_n(\frac1{12})E_n(\frac3{20})E_n(\frac{11}{20})}=\\
\exp\left[\frac{47\mathrm G}{30\pi}+\frac34\right]\sqrt{\frac{33}{91...
In the following definition, I am denoting the condition that $a$ is not an integral multiple of $b$. Why is there such a big space between $b$ and the vertical bar with a slash through it?
\documentclass{amsart}
\usepackage{amsmath}
\begin{document}
\noindent
The integers $q$ and $r$ are call...
There's a tower in a far off land, one that you can only climb by unlocking the secret password to all the floors. Each floor has an inscription on the walls, indicating a number. As you approach a bird screeches at you:
I sit upon this enigmatic wall.
At the top is the first floor of th...
It is safe to use olive oil to clean the ear wax as advised here?
This site said it's good:
Although there are questions about the effectiveness of any specific
ear drops, olive oil -- as long as it's the same or cooler than body
temperature -- is not a harmful treatment. Start by placin...
I've bought Cup models from Internet.
When opening .blend file I get Blender's Interface changed. To avoid this I've unchecked "Load UI" on opening the file.
But now I cannot see the objects of the project (I can see and render them when opening the file and leaving "Load UI" checked).
"Col...
All you need to free yourself from slavery is a couple of pints of beer
I read Ivanhoe for the first time translated into Spanish, and am having a heck of time finding the material in any English editions for reference.
I have a lightning web component, using lighting-datatable with row-numbers visible. This works well up to 99 records... then I get this:
[![enter image description here][1]][1]
My component code:
<lightning-datatable
key-field="id"
data={responses}
...
I have been following the "High Performance Computer Architecture" course from Georgia Tech (also on YouTube), and unless I've missed something, I cannot see where the following has been explained:
If I have a multilevel cache, L1/L2/L3/Ln:
1) what decides what level of this hierarchy a block f...
I saw a phrase saying “protruding eye”. Shouldn’t it be “protruded” ? I couldn’t understand why -ing is used instead of -ed and how the -ing form is used as an adjective here.
I'm working on a project using nlohmann's json C++ implementation.
How can one easily explore nlohmann's JSON keys/vals in GDB ?
I tried to use this STL gdb wrapping since it provides helpers to explore STL structures that lohmann's JSON lib is using.
But I don't find it convenient.
Here is a ...
Even after learning of his brother's deceit Esau cries out to his father for blessings as well never mentioning any reprisals.
We are only told that he planned murder in his heart and there is no record of him telling anyone.
Genesis 27
[41]So Esau bore a grudge against Jacob because of the...
I am a staircase, covered in paint.
Each step taken gives knowledge, new and quaint.
I used to be more of a ramp type shape,
But progress was slow, like rewinding a tape.
My new inside is famously difficult to place,
At least if you look only at my face.
I contain...
In an excellent answer to one of my previous questions, verbose writes:
Since The Tempest is the first play printed in the First Folio, it was often assumed to be an early play. Scholars such as Edmond Malone and Edward Capell began tackling the chronology of Shakespeare's plays in the late 1...
Problem
Reverse digits of a 32-bit signed integer. When the reversed integer overflows return 0.
Feedback
Looking for any ways I can optimize this with modern c++ features overall. I hope my use of const correctness, exception handling, and assertions is implemented well here, please let me kn...