text stringlengths 352 54.6k | meta dict |
|---|---|
Q:
How can I decode this string which is represented as unicode?
I get s when trying to parse a web page by readability(Python 2.7 on Windows 10, Sublime Text 2/cmd)
>>> import requests
>>> from readability import Document
>>>
>>> response = requests.get('http://www.gamersky.com/news/201806/1064930.shtml')
>>> doc = ... | {
"pile_set_name": "StackExchange"
} |
Q:
Transform a 9x9 Matrix so that each row is a 3x3 Block
I have the following example data:
[0] = {01,02,03, 04,05,06, 07,08,09}
[1] = {11,12,13, 14,15,16, 17,18,19}
[2] = {21,22,23, 24,25,26, 27,28,29}
[3] = {31,32,33, 34,35,36, 37,38,39}
[4] = {41,42,43, 44,45,46, 47,48,49}
[5] = {51,52,53, 54,55,5... | {
"pile_set_name": "StackExchange"
} |
Q:
url param not getting properly
I have a two server.I am passing 4 variable in url ssid(36),rawstring(1024),sample_id,user_id.
I simplely want to get parameter passed in url.When I hit my first server I am getting param,but same url(Only change server name),I get 3 parameters(not getting raw string).
In my controll... | {
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} |
Q:
Matching data in 2 data frame in R?
I have 2 data frame, one has time stamp and temperature and the other has time stamps. I wanna copy the temperature data from first data set to second one if the time stamp is identical !
I have checked this and this likns. But they are different to my question.
Can someone help... | {
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} |
Q:
constructing a Data Frame in Rcpp
I want to construct a data frame in an Rcpp function, but when I get it, it doesn't really look like a data frame. I've tried pushing vectors etc. but it leads to the same thing. Consider:
RcppExport SEXP makeDataFrame(SEXP in) {
Rcpp::DataFrame dfin(in);
Rcpp::DataFrame d... | {
"pile_set_name": "StackExchange"
} |
Q:
Issue with Json file for Highstock
I'm actually be doing a project in my studies and i will take json data from webservice for set it in highstock.
My webservice (file in php language) return actually this json format
[{"jour":"22","mois":"1","an":"10","heure":"10","minute":"0","p_ac":"143"},{"jour":"22","mois":"... | {
"pile_set_name": "StackExchange"
} |
Q:
convert image to byte literal in python
I'm trying to store an image as text, so that I can do something like this example of a transparent icon for a Tk gui:
import tempfile
# byte literal code for a transparent icon, I think
ICON = (b'\x00\x00\x01\x00\x01\x00\x10\x10\x00\x00\x01\x00\x08\x00h\x05\x00\x00'
... | {
"pile_set_name": "StackExchange"
} |
Q:
java script newline replacement
I finished a JavaScript beginners course and tried to solve the JS challenges in hackthissite.org. in last challenge the obfuscation decryption done correctly but the for loop i executed, output letters below each other instead of beside each other.
var puzzle = [0x3c, 0x62, 0x75, 0... | {
"pile_set_name": "StackExchange"
} |
Q:
having problems with for loop in javascript
I have a table with numbers but they are stored as string so I am trying to use the function parseFloat to convert it into a table of ints. However, no matter how I do the for loops it gives me a blank table. I can parse the row and it will give me a single int. I can pa... | {
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} |
Q:
How to test whether $e^{3x^{2}} + \frac {1}{1+3x^2} - 2\cos(x^2)$ is $o(x^3)$?
From what I learned, $\lim_{x \rightarrow 0} \frac {f(x)}{x^3} = 0$ tells $f(x) = o(x^3)$
In this case, I have tried to compute $\lim_{x \rightarrow 0} \frac {e^{3x^{2}}}{x^3}$, but the limit seems not to exist.
Then I tried to combine ... | {
"pile_set_name": "StackExchange"
} |
Q:
Am I solving the system of differential equations the right way?
I have the following equations:
$$ y_1'(t)=4y_1(t)-y_2(t)+f_1(t) $$
$$ y_2'(t)=2y_1(t)+2y_2(t)+f_2(t) $$
where:
$$f_1(t)=\frac{e^{4t}\cos{t}}{e^{2t}+1}$$
$$f_2(t)=\frac{e^{4t}(\cos{t}+\sin{t})}{e^{2t}+1}$$
$$y_1(0)=y_2(0)=\frac{\pi}{4}$$
I tried to... | {
"pile_set_name": "StackExchange"
} |
Q:
Svg Slider in console but not showing
I'm trying to build a slider svg template which I can use to switch from light theme to dark theme, The original idea is to try and replicate a design that I've seen that has a moon, then when it slides position it turns into a sun. I have build a basic template (without any g... | {
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} |
Q:
Show $ \int_0^\infty\left(1-x\sin\frac 1 x\right)dx = \frac\pi 4 $
How to show that
$$
\int_0^\infty\left(1-x\sin\frac{1}{x}\right)dx=\frac{\pi}{4}
$$
?
A:
Use
$$
\int \left(1-x \sin\left(\frac{1}{x}\right)\right) \mathrm{d} x = x - \int \sin\left(\frac{1}{x}\right) \mathrm{d} \frac{x^2}{2} = x - \frac{x^2}{2... | {
"pile_set_name": "StackExchange"
} |
Q:
RSA decryption with large keys
My problem: I already know the private and public key of an RSA system and I have an encrypted message but I can't decrypt it, because my private exponent is about 1024 bit. My data is following if it is needed for details but the question is how to decrypt a message with long keys o... | {
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} |
Q:
Why is the creation of multi-dimensional arrays so slow in Scala?
Consider this code:
Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(Array(A... | {
"pile_set_name": "StackExchange"
} |
Q:
mysql how can I query a database table by day and month and produce totals
I have the following database table
"id","date_occurred","country","town","quantity"
"1","2012-06-01","England","Andover","82"
"2","2012-06-01","England","Colchester","569"
"3","2012-06-01","England","Farnham","1"
"4","2012-06-01","England"... | {
"pile_set_name": "StackExchange"
} |
Q:
WPF Rounded Corners background bleeding through
I'm making my first foray into WPF - I have a simple form with a popup defined for inline help. I'm using rounded corners, and for some reason a black background is bleeding through around the corners. I don't understand which element is causing the problem.
alt te... | {
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} |
Q:
ftruncate() not emptying my file
I have a file in which I write
<timestamp>hashedcertificate
<timestamp>hashedcertificate
<timestamp>hashedcertificate
(etc.)
On a certain request, I'm reading out all timestamps in an array and all hash strings in an array.
$valid = fopen("./valid", "r+");
if (!$valid) {
log::Wr... | {
"pile_set_name": "StackExchange"
} |
Q:
Project Euler Number 24
Python 2.7.9
Hello I'm experiencing some problems with how python is handling my permutations algorithm.
So I want my function to take the set_list=[1,2,3,4] and return all the permutations of that list.
This was my idea. Move from left to right, starting at the index values 0,1 of set_lis... | {
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} |
Q:
How do I force cabal to give me more meaningful error messages?
On trying to install Pandoc, I see:
....
/usr/local/bin/ghc --make -o dist/build/pandoc/pandoc -hide-all-packages -fbuilding-cabal-package -package-conf dist/package.conf.inplace -i -idist/build/pandoc/pandoc-tmp -isrc -idist/build/autogen -Idist/buil... | {
"pile_set_name": "StackExchange"
} |
Q:
aggregate function produces daily instead of hourly mean
I have a data.frame with 15 minute time steps in the first column and 16 more columns full of data. I want to get the hourly mean for each column. I am using aggregate and it works perfectly fine for 1 min data.
mydata <- list()
for(j in colnames(data_frame)... | {
"pile_set_name": "StackExchange"
} |
Q:
How to change the accordion menu icon with JS?
I have a menu (accordion) that uses Bootstrap 3.3.7 and Font Awesome 5.0.1
What I am looking for :
When the menu is closed, a "plus" icon is displayed.
When the menu is open, a "minus" icon is displayed.
The "plus" icon is displayed on the menu but does not change.
I ... | {
"pile_set_name": "StackExchange"
} |
Q:
How to convert many-valued logic into efficient boolean logic?
Suppose that I have a set S consisting of {0₁, ¯1₂, 0₂, 1₂, ¯2₃, ¯1₃, 0₃, 1₃, 2₃, ¯3₄, ¯2₄, ¯1₄, 0₄, 1₄, 2₄, 3₄}. I want to define the following operations over S:
S < 0 which returns one if and only if S is negative.
¯S which returns the negation of ... | {
"pile_set_name": "StackExchange"
} |
Q:
JavaScript changing images with onmouseover and onmouseout
I've looked at similar questions and answers on Stack Overflow which I can't get to work. everything is find when the page loads but when I mouse over it doesn't show the new gif.
When inspecting the code in the browser it seems to be switching between th... | {
"pile_set_name": "StackExchange"
} |
Q:
Block header format
Does anyone understand what each element of a block header represents? I have an example block header represented here:
[
cd7bd64fba4cc782fe5474d3640882afece5887180591e72f80ce6916cf73526,
1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347,
f927a40c8b7f6e07c5af7fa2155b4864a4112b13,... | {
"pile_set_name": "StackExchange"
} |
Q:
Sending bz2-compressed data as utf-8 string via gunicorn with Python 2.7
I am trying to use gunicorn to send a utf-8 encoded string, which is the result a bz2 compression, as the response to a get request.
Here is my code on gunicorn server side:
def app(environ, start_response):
data = "Hello, World!" * 10
... | {
"pile_set_name": "StackExchange"
} |
Q:
Prevent narrow svg paths from forming a block
I'm trying to draw a bunch of narrow spaced paths, but sadly they always seem to form a grey block.
Example: jsfiddle
<svg overflow="hidden" width="200" height="200" style="width: 200px; height: 200px;">
<path stroke="rgb(0, 0, 0)" stroke-opacity="1" stroke-width="1... | {
"pile_set_name": "StackExchange"
} |
Q:
How do I calculate mean value for each month in the dataset?
Sample wind dataset:
`.................RPT VAL ROS KIL SHA BIR DUB CLA MUL CLO BEL MAL
DATE
1961-01-04 10.58 6.63 11.75 4.58 4.54 2.88 8.63 1.79 5.83 5.88 5.46 10.88
1961-01-05 13.33 1... | {
"pile_set_name": "StackExchange"
} |
Q:
how to add tag in soap response
Using gsoap I have generated server C++ codes.
Using SoapUI, I send a message to server and get the response. Until here every thing is fine.
I wanted to add more tags on the response. To do that, I have manipulated server codes. Originally the code generated by gsoap that produces ... | {
"pile_set_name": "StackExchange"
} |
Q:
Filter column / row data in matrix through user input - matlab
I have an N x 3 matrix (double) with values in third column going in the interval 1:4, and only those four values. This matrix is saved as 'data', and will be used for further analysis after this filtering with the same name.
How can I through user in... | {
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} |
Q:
Extracting file list from remote gzipped tar file without downloading tar (getting "embedded nuls" error)
I'm trying to get a file list (and then extract specific files) from a large (300-600 MB) remotely-hosted tar.gz file -- without downloading the entire file. However, I don't quite understand whether my file s... | {
"pile_set_name": "StackExchange"
} |
Q:
Git tag for a subfolder of a repository
I use Git to import a SVN repository. Then I created my own project as a subfolder in the repository.
I use the SVN repository with Git-SVN. My working procedure is:
git commit -am "message"
git svn rebase
git svn dcommit.
Now I want to tag my project with git tag -a RC1 -... | {
"pile_set_name": "StackExchange"
} |
Q:
apache rewrite rules, non-www, https
I have two applications on the same server and use apache rewrite rules to redirect:
www requests to non www
http reuests to https
Everything works ok, except one case:
request www.test2.test.eu is redirect to https://www.test1.com content
How can I konfigure it properly?
Rew... | {
"pile_set_name": "StackExchange"
} |
Q:
How do I eliminate the "'str' object is not callable"?
I get the following error on the code below, and have no idea what is going on. I'm very much a beginner and need some help. I am trying to make a very basic game of tic-tac-toe in the console, and am having trouble.
Traceback (most recent call last):
File "D:... | {
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} |
Q:
CSS selector for reCaptcha checkbok using Selenium and vba excel
In the website I am trying to fill some fields, there is a checkbok that I need to click to add the check mark in it
<div class="rc-anchor-content"><div class="rc-inline-block"><div class="rc-anchor-center-container"><div class="rc-anchor-center-ite... | {
"pile_set_name": "StackExchange"
} |
Q:
Woocommerce Order API Line Item ID changes on update
I’m retrieving Woocommerce orders via the "order updated" webhook and storing specific data in a separate database.
We are also using a personalisations plugin which allows customers to add custom messages to products. This creates 2 separate line items, which w... | {
"pile_set_name": "StackExchange"
} |
Q:
How to find out the probability to enter a house?
Let's assume there is $50\%$ of chances to someone's house entry door to be locked. A locksmith has $10$ keys, of which only 2 open the door. What is the probability of someone to enter the house through this door if he (or she) can choose by chance only one key am... | {
"pile_set_name": "StackExchange"
} |
Q:
How to interpret a t-sql deadlock trace
I'm trying to sort out a deadlock by looking at the t-sql trace but I'm struggling to understand the information. I have a summary of the info here and then the full deadlock trace at the end of the post:
The first lock is on a table called dbo.RetailVoucher
The second lock ... | {
"pile_set_name": "StackExchange"
} |
Q:
Is the word typeable with keys adjacent to each other?
Before reading this I suggest reading this little puzzle: https://puzzling.stackexchange.com/questions/11408/longest-word-with-adjacent-letters-on-a-keyboard
I want you to make a program that takes one argument, a word (only lowercase letters), and outputs "Ye... | {
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} |
Q:
What usage does 有 have in ~的有 (e.g. 偏向于data reseacher的有)
In the following sentence over 知乎:
从我的观察来看，不同企业对于data scientist这个title的定义其实是有分歧的，偏向于data reseacher的有，多见于大型IT企业，百度大脑的data scientist们多属于这一类型，他们搞的是比较前沿的深度学习，平常会读大量paper可能自己也会发；偏向于data creative的有，各种企业都会储备，会ETL，懂模型、懂行业，会展示沟通，比较能够创造直接的价值。偏向于data developer的也有但是很少，... | {
"pile_set_name": "StackExchange"
} |
Q:
How to extract a link from the embedded link with python?
I have a string like this:
<iframe src="https://www.facebook.com/plugins/post.php?href=https%3A%2F%2Fwww.facebook.com%2FDoctorTaniya%2Fposts%2F1906676949620646&width=500" width="500" height="482" style="border:none;overflow:hidden" scrolling="no" frameborde... | {
"pile_set_name": "StackExchange"
} |
Q:
Bitminter - no rewards when more work was done?
Very new to this concept, why would something like this occur on Bitminter's pool?
Completed Duration Difficulty Pay/Hour at 1 TH/s Total Thps Your Ghps Your work
2014-10-25 15:02 1h 46m 35,985,640,265 being paid now 2,436.1 10.7 15,856
2014-10-25 1... | {
"pile_set_name": "StackExchange"
} |
Q:
iterate over a Json file and insert into db in Python
{"groupId":"org.springframework","artifactId":"spring-jcl","version":"5.1.2.RELEASE","file":"/home/howie/.gradle/caches/modules-2/files-2.1/org.springframework/spring-jcl/5.1.2.RELEASE/f0d7165b6cfb90356da4f25b14a6437fdef1ec8a/spring-jcl-5.1.2.RELEASE.jar","depe... | {
"pile_set_name": "StackExchange"
} |
Q:
Why does a select query require an IX lock?
While inspecting the deadlock graph below, I found that a SELECT query (only query inside the SP being executed by the first process process569f048) and an UPDATE query forming a deadlock; and the SELECT query is requiring an IX lock.
In what situation such locks are nec... | {
"pile_set_name": "StackExchange"
} |
Q:
Derive a 2D recurrence from a set of linear recurrences
Given a set of high-order linear recurrences:
$A(1, n): 0, 1, 0, 1, 0, ...$
$A(2, n): a_{n} = 2a_{n-2} - a_{n-4}$
$A(3, n): b_{n} = 3b_{n-2} - 3b_{n-4} + b_{n-6}$
$A(4, n): c_{n} = 4c_{n-2} - 6c_{n-4} + 4c_{a-6} - c_{n-8}$
ans so on.
I want to derive 2D recu... | {
"pile_set_name": "StackExchange"
} |
Q:
How to show tool tip on to the left side of DIV
Hello I have downloaded some codes from Google for a Tool tip for one of my DIVs.
In here the Tool tip is displaying on the top of DIV what I want is to display the Tool
tip on the left side of DIV and should has a long height.
I am Beginner to CSS i tried my best bu... | {
"pile_set_name": "StackExchange"
} |
Q:
Calculate: $\lim _{x\to \infty }\left(\frac{\sqrt{x^3+4}+\sin \left(x\right)}{\sqrt{x^3+2x^2+7x+11}}\right)$.
Calculate:
$$\lim _{x\to \infty }\left(\frac{\sqrt{x^3+4}+\sin \left(x\right)}{\sqrt{x^3+2x^2+7x+11}}\right)$$
Here's my attempt:
I first tried to the statement up. I first let $f(x)=\left(\frac{\sqrt{x^3... | {
"pile_set_name": "StackExchange"
} |
Q:
Differential Equation, how is it solved?
I wish to solve the following differential equations:$$g'(z) + \left[ -\frac{2}{1-z} + \frac{b}{(1-z)^2}\right]g(z) = 0$$ A similar one is $$g'(z) + \left[ -\frac{2}{1-z} + \frac{b}{(1-z)^2}\right]g(z) = -\frac{1}{(1-z)^2}$$ I am skeptical of the solutions given by Wolfram... | {
"pile_set_name": "StackExchange"
} |
Q:
How to hide the previous image completely while animating in a slider using translateX()?
Here is the result there as you can see its working on jsfiddle as the image get translated there is some portion of previous image visible with the active image on the viewport.
https://jsfiddle.net/bhavikbamania/953autk5/
<... | {
"pile_set_name": "StackExchange"
} |
Q:
Show form fields conditionally based on user input
In my Laravel app, I have a select form field that lists a set of countries:
<select id="js-countrySiteSelect">
<option>Select Your Country</option>
<option>United States</option>
<option>Australia</option>
<option>Germany</option>
<option>Swit... | {
"pile_set_name": "StackExchange"
} |
Q:
Geb withFrame - "call function result missing 'value'"
I'm new to using withFrames in Geb, and I am trying to follow the examples in the Book of Geb.
I am trying to get my code to enter text and push a button within a frame.
The preferred way is to define the frame element inside your containing page, but for now ... | {
"pile_set_name": "StackExchange"
} |
Q:
How can I test my asynchronous code in a restify HTTP handler?
I have a function in my Restify project that handles an HTTP GET request. After some processing it uses Sequelize to find the user entity for my current session. The User.findOne function returns a promise and depending on the result of that promise, I... | {
"pile_set_name": "StackExchange"
} |
Q:
In Maven, how do I discover what is depending on a particular dependency?
I've got this problem and I think it's caused by some library transitively depending on an old version velocity. My pom is explicitly asking for the correct version of velocity, but I think some other dependency is transitively pulling in a... | {
"pile_set_name": "StackExchange"
} |
Q:
struct.error: unpack requires a string argument of length 4
Python says I need 4 bytes for a format code of "BH":
struct.error: unpack requires a string argument of length 4
Here is the code, I am putting in 3 bytes as I think is needed:
major, minor = struct.unpack("BH", self.fp.read(3))
"B" Unsigned char (1 by... | {
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} |
Q:
Underscore appears at end of images anchors
There is a problem with my code where tiny underscores appear on the bottom-right corner of my anchor image. I have no idea how to fix it. I've heard answerers form other similar questions saying you have to add a closing </a> tag at the end, but that doesn't seem to be ... | {
"pile_set_name": "StackExchange"
} |
Q:
External dictionary reading behavior in a class
I have found this behavior that I can not understand. I state that this is a simplification of the problem I'm having, since the dictionary in my script has a lot more items.
configuration = {
"video": {
"fullscreen": {
"user": None,
... | {
"pile_set_name": "StackExchange"
} |
Q:
Second-price sealed-bid auction uniformly independent with unknown value
a disclaimer before the question: this is a homework problem. I just want some help/push in the right direction, I'm kind of stuck! The problem is as follows:
In a second-price sealed-bid auction for a single item, there are three bidders. Th... | {
"pile_set_name": "StackExchange"
} |
Q:
Select option by value in Protractor fails
I'm trying to select an option by option value. In this scenario, I have Categories and sub categories. Here is the application I'm testing using Protractor.
Here what I'm doing is first add the Category. and I have to refresh the page, because, only if I refresh the pag... | {
"pile_set_name": "StackExchange"
} |
Q:
Using Python's range() function
In Python 3.4, running the code
d = {}
for i in range(-100, 1): #exclusive endpoint
d[i] = 0
should give you a dictionary, d, that has 100 key/value pairs starting with -100:0 and ending with 0:0. But for some reason, whenever I run this code, I get a dictionary that starts wit... | {
"pile_set_name": "StackExchange"
} |
Q:
301 redirect to the rewrited url
The CMS i am working with has these rewrite rules:
For the tags:
RewriteRule ^tags/([^/]+)/$ tag.php?t=$1&page=1
RewriteRule ^tags/([^/]+)/page-([0-9]+)(/)?$ tag.php?t=$1&page=$2
for the category pages:
RewriteRule ^browse-(.*)-videos.html$ category.php?cat=$1
RewriteRule ^browse-... | {
"pile_set_name": "StackExchange"
} |
Q:
Magento 2 Layered Navigation in Advance Search Result
How can I add Layered Navigation in Advance Search result page(2 Column Left layout)?
How can I dot it?
A:
Override catalogsearch_advanced_index.xml in your theme
From
vendor/magento/module-catalog-search/view/frontend/layout/catalogsearch_advanced_index.xm... | {
"pile_set_name": "StackExchange"
} |
Q:
math.acos math domain error within the range of acos
I've got a script that runs through a set of coordinates for triangles and determines whether or not they're a right triangle. Part of this uses the cosine rule, and I've come across a problem when checking a certain set of points that happen to fall in a line.... | {
"pile_set_name": "StackExchange"
} |
Q:
Identities for hypergeometric functions ${}_2F_1$ with z=1/2
Is there a closed form (or approximation) for a hypergeometric function of form:
$_2F_1(1,b+c;c;\frac{1}{2}) \quad \text{where} \; b,c \in \mathbb{N}$ ?
I researched all identities in http://functions.wolfram.com/HypergeometricFunctions/Hypergeometric2F1... | {
"pile_set_name": "StackExchange"
} |
Q:
Returning response from asynchronous call
Before I start, I have already spent a long time reading this:
How do I return the response from an asynchronous call?
I have a hard coded variable, called "d", defined as a 2d array:
var d = [
["05_001","05_002","05_003","05_004","05_005"],
["05_006","05_007","05_... | {
"pile_set_name": "StackExchange"
} |
Q:
How to perform R time based resampling with a given time period equivalently to using pandas 'resample' functions?
I am trying to find a way to do the equivalent re-sampling action as the pandas manipulation below:
example original dataframe df:
FT
Time
2017-03-18 23:30:0... | {
"pile_set_name": "StackExchange"
} |
Q:
Is it possible or how to extract message string from binarized list?
Given message copied from Silvia's profile page, a binarized list could be found bellow.
lst = Uncompress@
"1:eJztk8ENwzAIRUkHyA5ZqdfeMkC6/605Vl8Gg8EykUD6imMb8/hxjvP7vl5EtN/\
63NpKpVIpqSgBg4XzKbwzvP6PJ/Baa2BvxMxzea1caV2al3zQnId7pHqS1yPsEkPPa8/... | {
"pile_set_name": "StackExchange"
} |
Q:
jQuery 2 column flexible using buttons
See this fiddle for where i am stuck:
http://jsfiddle.net/kylebellamy/hfLm3n9z/1/
I want the buttons to do the collapse, not the DIVs but I can't figure out how to cause the trigger to be them instead of the DIVs. I realize the All is not necessary but from a typical user sta... | {
"pile_set_name": "StackExchange"
} |
Q:
converting json to string in php
i want to convert this json to string in php, i want it to return just the titles and descriptions.
my json output codes from my url:
{"play-list":[{"id":"48","title":"Sound Remedy \u0026 Illenium - Spirals (feat. King Deco)","description":"","uid":"9","first_name":"kings ","last_... | {
"pile_set_name": "StackExchange"
} |
Q:
Verify the triangle inequality for $\lVert (u_1,u_2)\rVert := \sqrt[4]{u_1^4+u_2^4}$
In a lecture we were left to verify that the triangle inequality holds for
$\lVert (u_1,u_2)\rVert := \sqrt[4]{u_1^4+u_2^4}$
In other examples I've been able to use the Cauchy Schwarz inequality to verify the triangle inequality,... | {
"pile_set_name": "StackExchange"
} |
Q:
Update jquery cookie pb after addClass , some div shouldn't take class cookie created
Thanks to Arun P Johny i achieve this code bellow but , there still a pb , Basicly, you click on a div then add class green background, so i'd like to keep the class after reload the page and i use jquery cookie plugin to achieve... | {
"pile_set_name": "StackExchange"
} |
Q:
Filtering date after max date SQL
I have a table with values en date/timstamps. This table is dbo.meterdata.value. The output that i want to see is as followed: The latest date/timestamp (Max) but only the ones where te latest date/timestamp is last week. My Query is:
SELECT dbo.meter.DataImportCode
,dbo.mete... | {
"pile_set_name": "StackExchange"
} |
Q:
Getting MissingRequirementError after moving classes to another package
So I was trying to organize my packages a bit better, and after moving some classes to another package my code now gives me this exception:
Exception in thread "main" scala.reflect.internal.MissingRequirementError: class Track not found.
at sc... | {
"pile_set_name": "StackExchange"
} |
Q:
Querying Large Dataset on Join (15+ million rows)
I am trying to join two tables, products and products_markets. While products is under a million records, product_markets is closer to 20 million records. The data has been changed so there might be a typo or two in the schema create tables:
CREATE TABLE `products_... | {
"pile_set_name": "StackExchange"
} |
Q:
How to handle breaks through CSS
I wanted only three items on one line after every three items the next three items should go on the next line. I wanted to do it without making changes to the HTML I tried this method in this Fiddle and wonder whether it is a right approach or is there any other way to handle it on... | {
"pile_set_name": "StackExchange"
} |
Q:
How to have the json output sorted in my case
This is the command I am using on Ubuntu to extract data from the original json file:
cat results.json | jq -s -c 'sort_by(.name) | .[]'
And these are the output I got:
{"name":"I-1","node_id":"458d3d44-9d70-473d-87ae-9cd419277c92","console":5005}
{"name":"I-10"... | {
"pile_set_name": "StackExchange"
} |
Q:
Ripple: How to calculate transaction ID (TXID)
Given a signed Ripple transaction, how do I calculate the txid?
A:
The transaction ID is calculated by prepending the bytes 0x54, 0x58, 0x4e, 0x00 to the signed transaction and then taking the SHA512Half of this input.
Example for a signed transaction, bytes are rep... | {
"pile_set_name": "StackExchange"
} |
Q:
Make a non-rectangular bottom for div?
Any idea on how to make a zigzag effect in the bottom of div with CSS. Is it border type or clip path?
Example of the wanted effect
A:
You can try with multiple background with radial-gradient and apply a drop-shadow filter for the shadow:
.box {
width:200px;
height:... | {
"pile_set_name": "StackExchange"
} |
Q:
Solve slower in versions 9 and 10
With some systems of equations, Solve is much slower in versions 9 and 10 than in earlier versions, apparently because it is doing more simplification of the results.
With the following example linear system:
eqs = {0 == g1 - 2 g1 r[1, 1] - I oa r[1, 3] + I oa r[3, 1] + g2 r[3, 3]... | {
"pile_set_name": "StackExchange"
} |
Q:
Parsing json in python
I am having trouble parsing the following json file. I am trying to parse this using logstash/python.
{
"took" : 153,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 946,
"max_score" : 1.0,
"hits" : [ {... | {
"pile_set_name": "StackExchange"
} |
Q:
get Items from Sharepoint-list
I've created a list in sharepoint by using visualstudio. The List is based on a custom contenttype. Because I want to delete the title field I've switched off inheritation of the Contenttype:
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
<Field ID="{51CC6776-F855-4... | {
"pile_set_name": "StackExchange"
} |
Q:
FEEL: list contains(inputDataNumberList, 1) with inputDataNumberList= [0,1] returns false
I load this DMN-File in my DMNModel class:
<definitions name="DecisionNumberInList" id="def_7e2582e9-cffe-e465-314a-5755eb893319"
xmlns:ns="http://sample.dmn" xmlns:feel="http://www.omg.org/spec/FEEL/20140401"
namespace="h... | {
"pile_set_name": "StackExchange"
} |
Q:
Particle filter for estimation of static parameters
I am considering particle filtering methods for the estimation of static and dynamic parameters. For the static parameters $\theta$, Liu and West (page 7, equation 3.1) describe an "artificial" perturbation:
$$
\theta_{t+1} = \theta_t + \zeta_{t+1}
$$
$$
\zeta_{t... | {
"pile_set_name": "StackExchange"
} |
Q:
Adding different templates in a table with angular 2
I am building a generic table control that I would like to be able to use across many different forms. However some of the different rows will need different templates. The template tag is something that I just don't quite understand.
What i am trying to accomp... | {
"pile_set_name": "StackExchange"
} |
Q:
MySQL display fetch based on best ratio
September 21 John Jill Jake
PCs sold 50 30 30
Keyboards sold 2 7 11
Speakers sold 18 8 14
Mice sold ... | {
"pile_set_name": "StackExchange"
} |
Q:
Get profiles values where message.sender_user_id = profile.user_id
I have this tables:
default_messages
CREATE TABLE IF NOT EXISTS `default_messages` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`subject` varchar(150) COLLATE utf8_unicode_ci NOT NULL,
`message` text COLLATE utf8_unicode_ci NOT NULL,
`sender_user_i... | {
"pile_set_name": "StackExchange"
} |
Q:
rails wrapping duplicate js.erb code into function
I have a rails app with a custom pusher chat where chat message will be loaded by AJAX for the sender and by pusher socket for the receiver.
In my create.js.erb file I have duplicate code at the moment and I don't know what the best way is to wrapping a piece of c... | {
"pile_set_name": "StackExchange"
} |
Q:
Multiple coloured box plots in R with legends
I have a raw data which looks like this:
A B C D E F G H I J K L M N O P
1 15.0 20 23.3 26.5 28 29.0 31.8 32.0 32.0 33.8 36.0 38 40 46 47.0 55.0
2 10.0 13 16.0 20.0 10 19.5 14.0 15.0 31.0 15.0 24.6 29 31 46 26.7... | {
"pile_set_name": "StackExchange"
} |
Q:
foreach loop returns zero results
I am pulling data from a json file and I get results no problem but I a only get 1 result. So when I do a foreach loop I get no results.
json results:
{
"channels": [
{
"position": 4,
"id": "901",
"name": "Away"
},
{
"position": 0,
"id":... | {
"pile_set_name": "StackExchange"
} |
Q:
foreach loop returns zero results
I am pulling data from a json file and I get results no problem but I a only get 1 result. So when I do a foreach loop I get no results.
json results:
{
"channels": [
{
"position": 4,
"id": "901",
"name": "Away"
},
{
"position": 0,
"id":... | {
"pile_set_name": "StackExchange"
} |
Q:
In Terminal, how do I add a host key to the file known_hosts?
In Terminal, how do I add a host key to the file known_hosts? Also, how do I remove a given host key from the same file?
I trying to ssh into a computer at my school and when I type in the command johndoe@mu.math.umn.edu, it returns:
@@@@@@@@@@@@@@@@@@@... | {
"pile_set_name": "StackExchange"
} |
Q:
Select all except list and it's title
I have this chunk of HTML-page
<div class="ProductDescriptionContainer">
<p>This handsome Clergy Shirt has a trim low neckband with two reinforced buttonholes, one at the front, one at the back, to align with Ziegler's Collarettes, Collars and Collar buttons. This clerical shi... | {
"pile_set_name": "StackExchange"
} |
Q:
Valgrind leak and Segmentation Error with a specific output when trying to malloc
So I have a program that receives as input a string with the format a word1 word2 word3 and that inserts these words into a structure that finally goes into a linked list. With all the inputs I have tried it works perfectly and there... | {
"pile_set_name": "StackExchange"
} |
Q:
Find the range of $x$, given $y_{min} \leq y(x) \leq y_{max}$, where $y(x) $ can be any function ( Updated)
I have a series of inequalities:
$$y_{1min} \leq y_{1}(x) \leq y_{1max}$$
$$y_{2min} \leq y_{2}(x) \leq y_{2max}$$
$$..$$
$$y_{nmin} \leq y_{n}(x) \leq y_{nmax}$$
Note that $x\in\mathbb{R}$
The question is, ... | {
"pile_set_name": "StackExchange"
} |
Q:
Semantics of APL dot operator?
The dot . can be used to realize different types of products. For example,
1 2 3 +.× 4 5 6
I assumed the semantics of a f.g b was: compute g(a[i], b[i]) then reduce using f. That is,
dot f g = f/a g¨ b ⍝ map g between a and b, and then reduce using f
To verify this, I wrote:
]d... | {
"pile_set_name": "StackExchange"
} |
Q:
Semantics of APL dot operator?
The dot . can be used to realize different types of products. For example,
1 2 3 +.× 4 5 6
I assumed the semantics of a f.g b was: compute g(a[i], b[i]) then reduce using f. That is,
dot f g = f/a g¨ b ⍝ map g between a and b, and then reduce using f
To verify this, I wrote:
]d... | {
"pile_set_name": "StackExchange"
} |
Q:
What is the difference between a priest and a pastor?
I'm writing a book and one character is Catholic and I'm not sure whether to use pastor or priest. And, one character gets possessed, yes I know that that's fictional, but would a Catholic "leader" perform an exorcism?
A:
I will first answer the question pose... | {
"pile_set_name": "StackExchange"
} |
Q:
Is there any field to hold an image in PDFBOX-1.8.10?
In PDFBOX, I want to insert some images as form fields which can be stored in an acroform.
Later for some value changes in specific PDTextBox field by user, I want to invoke Javascript function to show/hide above image fields. Also confirm whether there is a su... | {
"pile_set_name": "StackExchange"
} |
Q:
Does the autocorrelation function completely describe a stochastic process?
Is a stochastic process completely described by its autocorrelation function?
If not, which additional properties would be needed?
A:
What is meant by a complete description of a stochastic process? Well, mathematically, a stochastic pr... | {
"pile_set_name": "StackExchange"
} |
Q:
WPF Toolkit DateTimePicker make Time Textbox un-editable
I am trying to make the time picker part of the Calender to have the readonly textbox. Because by default it allows user to type
invalid time and throws index out of range. I like to just allow time picker from up down arrows and disable typing in that textb... | {
"pile_set_name": "StackExchange"
} |
Q:
JavaFX: Text Area comes blurry from FXML File and not expanded
I have two issues:
First issue is that the second panel, with a text area, comes in blurry upon instantiatation. Any ideas why?
Second issue: when I instantiate this object, it comes in where both panes are collapsed, even though I set one of them to b... | {
"pile_set_name": "StackExchange"
} |
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