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python - How to get element-wise matrix multiplication (Hadamard product) in numpy?

I have two matrices a = np.matrix([[1,2], [3,4]]) b = np.matrix([[5,6], [7,8]]) and ... product (aka Hadamard product) using built-in functions? See Question&Answers more detail:os...

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

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ios - How to add minutes to current time in swift

I am new to Swift and am trying a scheduler. I have the start time selected and I need to add 5 minutes (or ... section 2 = start time + 10* 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 - Check if string is in a pandas dataframe

I would like to see if a particular string exists in a particular column within my dataframe. I'm getting the error ... print ("Mel is there") 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 can I use Web.debug.config in the built-in visual studio debugger server?

How can I merge and make use of Web.debug.config in visual studio 2010 built-in debugger? See Question&Answers more detail:os...

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

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angularjs - Using Bootstrap for Angular and Material design for Angular together

I'm working on a project with this template. The template is written using AngularJs and Bootstrap-UI (bootstrap ... = Awesomeness or Disaster? 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 - django template system, calling a function inside a model

I want to call a function from my model at a template such as: class ChannelStatus(models.Model): ......... ... do if it has parameter(s) Cheers See Question&Answers more detail:os...

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

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exception - Android: Unable to instantiate activity / ClassNotFoundException

I recently published an app to the market and I'm now getting an error by some user, the app presumably ... was applied there. Thanks, Select0r 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 do I get the CURRENT orientation (ActivityInfo.SCREEN_ORIENTATION_*) of an Android device?

I would like to find out the detailed orientation of a device, preferably one of SCREEN_ORIENTATION_LANDSCAPE, ... no better way? 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# - namespace naming conventions

For those of you out there writing reusable components, what do you consider to be best practice if you're extending ... I use System.Net.Mail ? See Question&Answers more detail:os...

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

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Android: TabHost without TabActivity

I want to create tabs without extending TabActivity. (The reason is that TabActivity cannot handle a custom titlebar ... Anyone an idea? 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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What's the difference between gcc and g++/gcc-c++?

It seems to me that gcc can deal with both c and c++ projects,so why is g++/gcc-c++ needed? What's the difference between g++ and gcc-c++? See Question&Answers more detail:os...

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

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jsf 2 - How to replace @ManagedBean / @ViewScope by CDI in JSF 2.0/2.1

I'm currently evaluating Java EE 6 / JSF 2.1 with RichFaces. A bean which is declared as @ManagedBean ... good place to invoke them? See Question&Answers more detail:os...

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

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firebase authentication - Why do I get com.google.android.gms.common.api.ApiException: 10:?

private void handleSignInResult(Task<GoogleSignInAccount> completedTask) { try { GoogleSignInAccount account = completedTask.getResult ... ; } } See Question&Answers more detail:os...

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

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django - Generating a Random Hex Color in Python

For a Django App, each "member" is assigned a color to help identify them. Their color is stored in the ... random Hex colors in python/django. 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: set timeout on a certain block of code?

Is it possible to force Java to throw an Exception after some block of code runs longer than acceptable? See Question&Answers more detail:os...

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

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javascript - In jQuery, what's the best way of formatting a number to 2 decimal places?

This is what I have right now: $("#number").val(parseFloat($("#number").val()).toFixed(2)); It looks ... or can I create a separate function? See Question&Answers more detail:os...

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

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android - Adding local .aar files to my gradle build

So i have created a Android-Library and succesfully compiled it into a .aar file i called this aar ... by: SuperAwesomeApp:App:unspecified See Question&Answers more detail:os...

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

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android - Exception : AAPT2 error: check logs for details

Task :processDebugResources Failed to execute aapt com.android.ide.common.process.ProcessException: Failed to execute ... this exception. 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++ - Where is `%p` useful with printf?

After all, both these statements do the same thing... int a = 10; int *b = &a; printf("%p ",b); printf ... there some good use of the %p option? 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 - OpenCV - Apply mask to a color image

How can I apply mask to a color image in latest python binding (cv2)? In previous python binding ... workaround without using boilerplate code? 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 - Android: how to parse URL String with spaces to URI object?

I have a string representing an URL containing spaces and want to convert it to an URI object. If I simply ... myString into a URI 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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ASP.NET Core with IIS - HTTP Verb Not Allowed

We have an ASP.NET Core 2.0 web site that also presents a couple of simple Web API methods for UI ... /direction would be much appreciated. See Question&Answers more detail:os...

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

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Overriding public virtual functions with private functions in C++

Is there is any reason to make the permissions on an overridden C++ virtual function different from the base ... legitimate reason to do so? See Question&Answers more detail:os...

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

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assembly - Why GCC compiled C program needs .eh_frame section?

Test is on 32 bit x86 Linux with gcc 4.6.3 When using gcc to compile a C program and using readelf to ... inside ELF compiled from C program? 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 - How to use session in JSP pages to get information?

I have a JSP page used for editing some user's info. When a user logins to the website, I keep the information in ... . What can I do about 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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ios - How to use AVCapturePhotoOutput

I have been working on using a custom camera, and I recently upgraded to Xcode 8 beta along with Swift 3. I ... know how to use 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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asp.net mvc - Are ActionFilterAttributes reused across threads? How does that work?

I have been doing some testing with the following code to try and workout how ActionFilterAttributes work: public ... find information on 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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Running Apache Hadoop 2.1.0 on Windows

I am new to Hadoop and have run into problems trying to run it on my Windows 7 machine. Particularly I am ... dlls are in 'bin' folder) See Question&Answers more detail:os...

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

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