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python - more efficient way to calculate distance in numpy?

i have a question on how to calculate distances in numpy as fast as it can, def getR1(VVm,VVs,HHm,HHs): t0=time. ... when i would put it in 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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html - WebGL: Prevent color buffer from being cleared

Even if I remove gl.clearColor(c[0],c[1],c[2],1.0); gl.clear(gl.COLOR_BUFFER_BIT ); the screen ... to achive some kind of overpaint effect. See Question&Answers more detail:os...

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

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Visual Studio 2012 C++ Standard Output

Where does fprintf(stdout/stderr) print to in Visual Studio when compiling Win32 app? I keep hearing it goes to the ... a console window in 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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584 views

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pagination - How to paginate a collection after get() in Laravel?

I have a merge on two query results which works fine: $events1 = AppEvent::Where('valid_to','>=',$today)-> ... works great and I did 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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r - Stacked barchart, independent fill order for each stack

I'm facing a behaviour of ggplot2, ordering and stacked barplot that I cannot understand. I've read some ... order of the original dataset. See Question&Answers more detail:os...

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

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Excel VBA "Method 'Document' of object 'IWebBrowser2' failed"

I'm trying to automate a form submission in Excel for work, and In have trouble with the basics. I keep getting ... Set appIE = Nothing End Sub See Question&Answers more detail:os...

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

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sql server - How do I pass value to a stored procedure parameter in OLE DB Source component?

I am working with SSIS 2008. I have a select query name sqlquery1 that returns some rows: aq dr tb This query is ... I need to do this in SSIS? See Question&Answers more detail:os...

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

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multithreading - clock function in C++ with threads

There is a really interesting note here: http://en.cppreference.com/w/cpp/chrono/c/clock "Only the difference ... in 3 seconds of runtime). See Question&Answers more detail:os...

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

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try catch - Try-with-resources equivalent in Java 1.6

I have the following code: public class Main { public static void main(String[] args) throws SQLException { try ... in this special try block? See Question&Answers more detail:os...

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

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ImportError on python 3, worked fine on python 2.7

I'm getting an error when importing my code_parsing package with Python 3.2. Directory code_parsing is within ... pyd stuff. 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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javascript - Why using $rootScope with functions is not recommended?

While am looking into the FEQs of Angularjs I've seen below article: $rootScope exists, but it can be used ... Is there any performance issue? See Question&Answers more detail:os...

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

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mechanize python click a button

I have a form with <input type="button" name="submit" /> button and would like to be able to click it. I ... and not submit. Any ideas? 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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javascript - Serial port not working?

I made a program that sends out data to my arduino which detects what was sent and then turns on the correct pin ... ; digitalWrite(pin, LOW); } See Question&Answers more detail:os...

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

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340 views

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python - How to transform string of space-separated key,value pairs of unique words into a dict

I've got a string with words that are separated by spaces (all words are unique, no duplicates). I turn ... I only iterate through 96 items. See Question&Answers more detail:os...

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

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selenium - Is it Firefox or Geckodriver, which creates "rust_mozprofile" directory

Whenever we invoke Firefox, under '/tmp' directory rust_mozprofile directories are getting created. As Firefox internally ... if there is any. 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 - pygame.error: No available video device

I have this setup: $ python -V Python 2.7.2+ $ python -c "import pygame; print pygame.__version__" 1. ... mentioned on this pygame wiki page. 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 - How to implement a pseudo blocking async queue in JS/TS?

So here's an oxymoron: I want to create an asynchronous blocking queue in javascript/typescript (if you can implement ... (); } 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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420 views

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cran - R help page as object

Is there a nice way to extract get the R-help page from an installed package in the form of an R object (e ... a bit of overkill for my purpose. See Question&Answers more detail:os...

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

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378 views

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java.lang.NumberFormatException: Invalid int: "" in android

I already know what is causing this error, I just do not know how to handle the case when a user doesn't enter ... to run the rest of the 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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assembly - Weird performance effects from nearby dependent stores in a pointer-chasing loop on IvyBridge. Adding an extra load speeds it up?

First I have the below setup on an IvyBridge, I will insert measuring payload code in the commented location. ... resource_stalls.any (66.64%) See Question&Answers more detail:os...

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

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503 views

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maven - failsafe plugin won't run on one project but will run on another -- why?

This is driving me insane. The Maven failsafe plugin will not run on my project. If I run mvn verify only ... the problem... 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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501 views

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try catch - VBA: How long does On Error Resume Next work?

I'm reading up on how to use On Error Resume Next and I'm trying to figure out how long that line will apply ... need to. Thanks for your time. See Question&Answers more detail:os...

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

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261 views

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python - Extract string from a dataframe comparing to a list

I am trying to extract strings from a DF in pandas dataframe and the source strings are in a list from which I have ... Game' , 'Time has come'] 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++ - Are pointer variables just integers with some operators or are they "symbolic"?

EDIT: The original word choice was confusing. The term "symbolic" is much better than the original ("mystical"). ... I was wrong to borrow 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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Is it possible to run multiple DDL statements inside a transaction (within SQL Server)?

I'm wondering if it is possible to run multiple DDL statements inside a transaction. I'm specially interested on SQL ... JDBC driver. b.r. Touko See Question&Answers more detail:os...

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

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212 views

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c++ - Using `std::function<void(...)>` to call non-void function

A while ago I used std::function pretty much like this: std::function<void(int)> func = [](int i) -> int { ... once a call to func() is made. See Question&Answers more detail:os...

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

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312 views

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php - A conditional element inside an array(...) construct

My system sends a configuration array to a function like this: callThatFunction( array(k1 => v1, k2 => v2, ... should express my idea. Thank you See Question&Answers more detail:os...

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

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657 views

1 answer

oop - Java method overloading + double dispatch

Can anybody explain in detail the reason the overloaded method print(Parent parent) is invoked when working with Child ... .doJob(worker); } } See Question&Answers more detail:os...

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

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