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Smooth GPS data
...ement; variance = accuracy*accuracy;
} else {
// else apply Kalman filter methodology
long TimeInc_milliseconds = TimeStamp_milliseconds - this.TimeStamp_milliseconds;
if (TimeInc_milliseconds > 0) {
// time has moved on, so the uncert...
Possible reason for NGINX 499 error codes
...
As a special case, I noticed it sometimes happen when the end-user double-clicks a form submit button. The form is sent twice, but only one response is expected by the client. This can be worked around by disabling (at least for a few seconds) buttons in JS the first ...
What is global::?
...
What would happen if I has an auto-generated class with a class prefixed with the global namespace and the class was called Foo I had a class I had created which also was called Foo also with no namespace?
– Sachin ...
Purpose of buildscript block in Gradle
...ation in order to compile and evaluate the rest of the build script. What happens under the hood is that Gradle separates the build script into two scripts (the buildScript block and everything else) so that it can process them separately.
– Peter Niederwieser
...
Why do Java webapps use .do extension? Where did it come from?
.... The user guide puts it like this:
5.4.2 Configure the ActionServlet Mapping
Note: The material in this section is not specific to Struts. The
configuration of servlet mappings is
defined in the Java Servlet
Specification. This section describes
the most common means of configurin...
AES Encryption for an NSString on the iPhone
...ly for demonstrating the state of the data at various points — in a real application, it wouldn't make sense to print such values.)
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSString *key = @"my password";
NSString *secret...
Scrolling a flexbox with overflowing content
...g post: http://geon.github.io/programming/2016/02/24/flexbox-full-page-web-app-layout
Basically, to make a flexbox cell scrollable, you have to make all its parents overflow: hidden;, or it will just ignore your overflow settings and make the parent larger instead.
...
What's the difference between Invoke() and BeginInvoke()
... mostly geared towards Delegate.BeginInvoke, I suspect.
For Windows Forms apps, I would suggest that you should usually use BeginInvoke. That way you don't need to worry about deadlock, for example - but you need to understand that the UI may not have been updated by the time you next look at it! I...
In WPF, what are the differences between the x:Name and Name attributes?
...tyAttribute on the class that designates one of the classes properties as mapping to the x:Name attribute of XAML.
The reason this was done was to allow for frameworks that already have a concept of "Name" at runtime, such as WPF. In WPF, for example, FrameworkElement introduces a Name property.
I...
Using tags in the with other HTML
... no mainstream browser currently supports the scoped attribute. (Although apparently developer builds of Chromium support it.)
HOWEVER, there is an interesting implication of the scoped attribute that pertains to this question. It means that future browsers are mandated via the standard to allow ...