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Getting distance between two points based on latitude/longitude
...n, cos, sqrt, atan2, radians
# approximate radius of earth in km
R = 6373.0
lat1 = radians(52.2296756)
lon1 = radians(21.0122287)
lat2 = radians(52.406374)
lon2 = radians(16.9251681)
dlon = lon2 - lon1
dlat = lat2 - lat1
a = sin(dlat / 2)**2 + cos(lat1) * cos(lat2) * sin(dlon / 2)**2
c = 2 * ata...
How to add parameters to a HTTP GET request in Android?
...uePair> params = new LinkedList<NameValuePair>();
if (lat != 0.0 && lon != 0.0){
params.add(new BasicNameValuePair("lat", String.valueOf(lat)));
params.add(new BasicNameValuePair("lon", String.valueOf(lon)));
}
if (address != null && address.get...
Solving “Who owns the Zebra” programmatically?
...Prince
5 white Swede dog beer Blue Master
It takes 0.6 seconds (CPU 1.5GHz) to find the solution.
The answer is "German owns zebra."
To install the constraint module via pip:
pip install python-constraint
To install manually:
download:
$ wget https://pypi.python.o...
How to create an AVD for Android 4.0
Android 4.0 is now released. I have just updated my ADT plugin and downloaded the 4.0 SDK. But when I try to create an AVD for Android 4.0, Eclipse tells me 'Unable to find a 'userdata.img' file for ABI armeabi to copy into the AVD folder'.
...
Laravel Check If Related Model Exists
...
202
In php 7.2+ you can't use count on the relation object, so there's no one-fits-all method for a...
Who is listening on a given TCP port on Mac OS X?
...repend sudo (followed by a space) if you need information on ports below #1024.
The -n flag is for displaying IP addresses instead of host names. This makes the command execute much faster, because DNS lookups to get the host names can be slow (several seconds or a minute for many hosts).
The -P f...
How to get the nvidia driver version from the command line?
...vidia-smi should tell you that:
bwood@mybox:~$ nvidia-smi
Mon Oct 29 12:30:02 2012
+------------------------------------------------------+
| NVIDIA-SMI 3.295.41 Driver Version: 295.41 |
|-------------------------------+---------------...
What is a rune?
...r <= 122:
return r - 32
case 65 <= r && r <= 90:
return r + 32
default:
return r
}
}
func main() {
fmt.Println(SwapRune('a'))
}
It should be obvious, if you were to look at the Unicode mapping, which is identical to ASCII in that range. Fur...
What's the yield keyword in JavaScript?
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answered Feb 17 '10 at 15:59
Matt BallMatt Ball
323k8585 gold badges598598 silver badges672672 bronze badges
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Detect Click into Iframe using JavaScript
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answered Mar 4 '10 at 17:46
bobincebobince
485k9999 gold badges611611 silver badges797797 bronze badges
...