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python - Why does numpy.linalg.solve() offer more precise matrix inversions than numpy.linalg.inv()?

I do not quite understand why numpy.linalg.solve() gives the more precise answer, whereas numpy.linalg.inv() ... works better" than the other? See Question&Answers more detail:os...

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

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Multiply field by value in Mongodb

I've been looking for a way to create an update statement that will take an existing numeric field and ... reference the document being updated. See Question&Answers more detail:os...

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

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369 views

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javascript - Sequelize: Using Multiple Databases

Do I need to create multiple instances of Sequelize if I want to use two databases? That is, two databases on ... way to achieve this? Thanks. See Question&Answers more detail:os...

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

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740 views

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python - Finding the full width half maximum of a peak

I have been trying to figure out the full width half maximum (FWHM) of the the blue peak (see image). The ... solution to the one I am trying. See Question&Answers more detail:os...

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

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c - How do realloc and memcpy work?

I have two questions. Do realloc() and memcpy() copy the entries in an array to another in a way faster ... decreasing the size of the array ? See Question&Answers more detail:os...

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

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How to enable AutoStart option for my App in Xiaomi phone Security App programmatically in android

My App is working with good remarks in all mobile except MI. Because MI restricting my App background service to ... Xiaomi? Thanks in Advance. See Question&Answers more detail:os...

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

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windows - How do I find out the browser's proxy settings?

I am writing a command-line tool for Windows that uses libcurl to download files from the internet. Obviously, the ... keep using C and libcurl. See Question&Answers more detail:os...

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

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objective c - How to limit NSTextField text length and keep it always upper case?

Need to have an NSTextField with a text limit of 4 characters maximum and show always in upper case but can ... doing it. Any better suggestion? See Question&Answers more detail:os...

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

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python - how to convert monthly data to quarterly in pandas

I have monthly data. I want to convert it to "periods" of 3 months where q1 starts in January. So in the example below ... . avg avg avg ... ... See Question&Answers more detail:os...

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

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java - Spring Boot with redirecting with single page angular2

I have a single page Angular app with Spring Boot. It looks like the following: src main java controller ... How to handle HTML5 urls? See Question&Answers more detail:os...

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

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iphone - How can I manually switch between UIViewControllers in storyboard?

All I need is to view a UIView controller in same storyboard file manually with code. I use ... IBOutlet UIButton *AttackButtonPressed; @end See Question&Answers more detail:os...

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

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git - when you have secret key in your project, how can pushing to GitHub be possible?

I am trying to push a brand new, empty Rail 3.0.4 project to GitHub, but just realize that the cookie ... be handled when pushing to GitHub? See Question&Answers more detail:os...

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

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AsyncTaskLoader basic example. (Android)

I am using a Loader in my application and based on the result I get from the query I perform on COntacts ... scenario would be a lot helpful. See Question&Answers more detail:os...

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

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template engine - Send asp.net mvc action result inside email

I'd like to use my Action in asp.net mvc, as template engine, that results in form of string, that I could ... ()); return new EmptyResult(); } See Question&Answers more detail:os...

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

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bittorrent - How PEX protocol (Magnetic links) finds it first IP?

I'm trying to understand how can a magnetic link work, as I've read they use DHT and PEX to get the peers, ... a link to a known host? Thanks See Question&Answers more detail:os...

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

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apache spark ml - Serialize a custom transformer using python to be used within a Pyspark ML pipeline

I found the same discussion in comments section of Create a custom Transformer in PySpark ML, but there is ... a compatible java object? See Question&Answers more detail:os...

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

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How to store and retrieve credentials on Windows using C#

I build a C# program, to be run on Windows 10. I want to send emails from this program (calculation results) by ... has a facility for that... See Question&Answers more detail:os...

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

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338 views

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ios - Broken UISearchBar animation embedded in NavigationItem

I am experiencing a problem with the new way of adding search bar to the navigation item. As you can see in the ... red; return true } } Ideas? See Question&Answers more detail:os...

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

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417 views

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javascript - jQuery - bind event on Scroll Stop

If i want to bind an event on page scrolling i can use scroll();. But how to fire when scroll() is ended ... /do somenthing else }); any ideas? See Question&Answers more detail:os...

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

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browser - How to hide ajax requests from firebug console?

How to hide ajax requests from firebug console or anything that shows ajax calls ? See Question&Answers more detail:os...

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

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362 views

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c++ - Precise thread sleep needed. Max 1ms error

I have thread that runs loop. I need that loop to be run once every 5ms (1ms error). I know that Sleep( ... want to have 100% CPU loaded either. See Question&Answers more detail:os...

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

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524 views

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Setting up Point Cloud Library with Visual Studio

I am trying to use the Point Cloud Library with Visual Studio. I downloaded the all-in-one 64 bit installer, Visual ... I prefer not to use it. See Question&Answers more detail:os...

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

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742 views

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windows - Can Ruby import a .NET dll?

I am interested in using/learning RoR in a project where I have to use a .NET dll. Is Ruby capable of importing a .NET dll? See Question&Answers more detail:os...

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

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362 views

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C++ format macro / inline ostringstream

I'm trying to write a macro that would allow me to do something like: FORMAT(a << "b" << c << d), and ... But is there a way to solve this now? See Question&Answers more detail:os...

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

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636 views

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jquery - Draggable revert if outside this div and inside of other draggables (using both invalid and valid revert options)

On ui draggables ( http://jqueryui.com/demos/droppable/#revert ) is it possible to revert a div if its inside ... not inside of that droppable? See Question&Answers more detail:os...

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

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351 views

1 answer

BigQuery SQL for 28-day sliding window aggregate (without writing 28 lines of SQL)

I'm trying to compute a 28 day moving sum in BigQuery using the LAG function. The top answer to this question ... write out 28 lines of SQL! See Question&Answers more detail:os...

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

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299 views

1 answer

android - Hide application icon

I am doing an Android application. I want to hide the application icon in the emulator and I want to start my ... there a way to do this? See Question&Answers more detail:os...

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

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670 views

1 answer

python - FullCalendar in Django

So, I have an appointment models class Appointment(models.Model): user = models.ForeignKey(User) date = models ... help is appreciated. Thanks. See Question&Answers more detail:os...

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

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