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MySQL Great Circle Distance (Haversine formula)
...amp; Google Maps:
Here's the SQL statement that will find the closest 20 locations that are within a radius of 25 miles to the 37, -122 coordinate. It calculates the distance based on the latitude/longitude of that row and the target latitude/longitude, and then asks for only rows where the dist...
How to get the first five character of a String
... you can use String.Substring.
string str = yourStringVariable.Substring(0,5);
Remember that String.Substring could throw an exception in case of string's length less than the characters required.
If you want to get the result back in string then you can use:
Using String Constructor and LI...
Ruby custom error classes: inheritance of the message attribute
...
StefanStefan
90.8k1010 gold badges116116 silver badges176176 bronze badges
...
Align image in center and middle within div
...
body {
margin: 0;
}
#over img {
margin-left: auto;
margin-right: auto;
display: block;
}
<div id="over" style="position:absolute; width:100%; height:100%">
<img src="http://www.garcard.com/images/garcard_symbol.pn...
“Keep Me Logged In” - the best approach
.... That means that there are:
possibilities = 2^128
possibilities = 3.4 * 10^38
Now, to show how absurdly large that number is, let's imagine every server on the internet (let's say 50,000,000 today) trying to brute-force that number at a rate of 1,000,000,000 per second each. In reality your serv...
Create batches in linq
...s (MoreLINQ is available as a NuGet package you can install):
int size = 10;
var batches = sequence.Batch(size);
Which is implemented as:
public static IEnumerable<IEnumerable<TSource>> Batch<TSource>(
this IEnumerable<TSource> source, int size)
{
TS...
Unix's 'ls' sort by name
...
answered May 18 '09 at 15:19
EvertEvert
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...
Which is more preferable to use: lambda functions or nested functions ('def')?
...
108
If you need to assign the lambda to a name, use a def instead. defs are just syntactic sugar fo...
How to delete a module in Android Studio
...
607
The "Mark as Excluded" option isn't there anymore.
The current (Android Studio 0.8.x - 2.2.x) ...
What's in an Eclipse .classpath/.project file?
...rstand".
– Warren P
Jun 22 '16 at 20:23
2
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