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python - How to normalize a NumPy array to a unit vector?

I would like to convert a NumPy array to a unit vector. More specifically, I am looking for an ... any similar functions provided in sklearn or numpy? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gcc - What is the use of _start() in C?

I learned from my colleague that one can write and execute a C program without writing a main() function. ... real world scenario where this would be useful? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - How can I find unused images and CSS styles in a website?

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to bind Events on Ajax loaded Content?

I have a link, myLink, that should insert AJAX-loaded content into a div (appendedContainer) of my HTML page. The ... a class="mylink" href="otherurl">Link</a> Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Angles between two n-dimensional vectors in Python

I need to determine the angle(s) between two n-dimensional vectors in Python. For example, the input can be two lists like the ... [1,2,3,4] and [6,7,8,9]. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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apache - How do you redirect HTTPS to HTTP?

How do you redirect HTTPS to HTTP?. That is, the opposite of what (seemingly) everyone teaches. I have a server on ... of me I can't do the opposite. Ideas? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Convert Pixels to Points

I have a need to convert Pixels to Points in C#. I've seen some complicated explanations about the topic, ... standard 96dpi, how do I calulate this conversion? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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security - How to read a HttpOnly cookie using JavaScript

Is there any way to read a secure cookie with JavaScript? I tried to do it using document.cookie and as ... cookie this way. Can anyone suggest a workaround? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to make an android app to always run in background?

I'm using an android device. When I open the Settings > Apps > Running, there is an option on the top-left ... in background? I hope I conveyed the question :-) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to redirect stdout to both file and console with scripting?

I want to run a python script and capture the output on a text file as well as want to show on console. I ... not get luck using that module to do the job. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Handle URL anchor change event in js

How can I write the JavaScript callback code that will be executed on any changes in the URL anchor? For ... http://example.com#a to http://example.com#b Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - When do I use super()?

I'm currently learning about class inheritance in my Java course and I don't understand when to use the super() call? ... , what does super(); do? On its own? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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performance - Size of a byte in memory - Java

I have heard mixed opinions over the amount of memory that a byte takes up in a java program. I am ... , and would this be an implementation specific issue? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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math - Implement page curl on android?

I was surfing the net looking for a nice effect for turning pages on Android and there just doesn't seem to be ... later apply shadows to to gie it more depth? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Adjust UILabel height to text

I have some labels which I want to adjust their height to the text, this is the code I wrote for this ... question itself. It might still be useful for others! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Generating CSV file for Excel, how to have a newline inside a value

I need to generate a file for Excel, some of the values in this file contain multiple lines. there's also non- ... looking for but at least it works (so far) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - How to calculate UILabel height dynamically?

I want to calculate number of lines and height of UILabel dynamically from given text for same. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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445 views

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javascript - Firefox 'Cross-Origin Request Blocked' despite headers

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Exception handling in R

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Curl error 60, SSL certificate issue: self signed certificate in certificate chain

I try to send curl request with my correct APP_ID, APP_SECRET etc. to the https://oauth.vk.com/access_token?client_id ... doesn't work with curl? Help, please. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How get the base URL via context path in JSF?

I have this structure: WebContent resources components top.xhtml company about_us.xhtml index.xhtml top.xhtml is a ... not 'elegant' at all. Any ideas? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Passing Python Data to JavaScript via Django

I'm using Django and Apache to serve webpages. My JavaScript code currently includes a data object with values ... yet) using a JavaScript library like jQuery. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - ReferenceError: fetch is not defined

I have this error when I compile my code in node.js, how can I fix it? RefernceError: fetch is not defined This ... function(error) { console.log(error); }); } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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optional - Swift variable decorations with "?" (question mark) and "!" (exclamation mark)

I understand that in Swift all variables must be set with a value, and that by using optionals we can set a ... : CAShapeLayer! And why/when would I do this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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423 views

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scala - How can sbt pull dependency artifacts from git?

I've heard (and I know I've seen examples too, if only I can remember where) that sbt can obtain dependencies from ... like this. Can it? And if so, how? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What should I use Android AccountManager for?

I've seen AccountManager in the Android SDK and that it is used for storing account information. Thus, I ... s account information for a general web service? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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107 views

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java - Storing a Map<String,String> using JPA

I am wondering if it is possible using annotations to persist the attributes map in the following class using JPA2 ... name varchar(100), value varchar(100)); Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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installation - How to manually install an artifact in Maven 2?

I've encountered some errors when I tried to install an artifact manually with Maven 2. I wanted to install a ... :goal Is there a mistake with my command? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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