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Function to calculate distance between two coordinates
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What you're using is called the haversine formula, which calculates the distance between two points on a sphere as the crow flies. The Google Maps link you provided shows the distance as 2.2 km because it's not a straight line.
Wolphram Alpha is...
How to attribute a single commit to multiple developers?
The way all version control systems I'm familiar with work is that each commit is attributed to a single developer. The rise of Agile Engineering, and specifically pair programming, has lead to a situation where two developers have made a significant contribution to the same task, a bug fix for exam...
Remote debugging with Android emulator
...sh -NL 5554:localhost:5554 -L 5555:localhost:5555 myuser@remote-server
killall adb; adb devices
I believe the emulator tries to notify a local adb server at startup; hence the need to restart adb in order for it to probe the local 5554+ ports.
Note that the localhost in the ssh command refers to ...
What is the AppDelegate for and how do I know when to use it?
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I normally avoid the design approach implied by Andrew's use of the term "heart of your application". What I mean by this is that I think you should avoid lumping too many things in a central location -- good program design normall...
AngularJS - Value attribute on an input text box is ignored when there is a ng-model used?
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Vojta described the "Angular way", but if you really need to make this work, @urbanek recently posted a workaround using ng-init:
<input type="text" ng-model="rootFolders" ng-init="rootFolders='Bob'" value="Bob">
https://groups.google.com/d/msg/angular/Hn3eztNHFXw...
Select something that has more/less than x character
...e LENGTH function to the EmployeeName column). In Oracle, and probably in all other RDBMSs, this means that a regular index on EmployeeName will be useless to answer this query; the database will do a full table scan, which can be really costly.
However, various databases offer a function indexes ...
Chrome's remote debugging (USB debugging) not working for Samsung Galaxy S3 running android 4.3
...DK Tools Only" section) and unzip the content.
Run SDK Manager.exe and install Android SDK platform tools
Open up the Command prompt (simply by pressing the windows button and type in cmd.exe)
Enter the path with ex:
cd c:/downloads/sdk/platform-tools
Open ADB by typing in adb.exe
Run the following ...
How to read the Stock CPU Usage data
... screen, showing how much the CPU is being used. The top red bar shows overall CPU usage, and the green bar underneath it shows the CPU time spent in compositing the screen. Note: You cannot turn this feature off once it is on, without restarting the emulator. developer.android.com/tools/debugging/...
CSS Selector “(A or B) and C”?
... syntax?
No. CSS' or operator (,) does not permit groupings. It's essentially the lowest-precedence logical operator in selectors, so you must use .a.c,.b.c.
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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
... the crash you may need to setup a swap space for your micro instance. Actually performance wise is better to enable swap.
Steps below show how to make a swap space for your Micro instance. I assume you have AWS Account with a Micro instance running.
Run dd if=/dev/zero of=/swapfile bs=1M count=102...