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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...
doGet and doPost in Servlets
...ould use doPost() when you want to intercept on HTTP POST requests. That's all. Do not port the one to the other or vice versa (such as in Netbeans' unfortunate auto-generated processRequest() method). This makes no utter sense.
GET
Usually, HTTP GET requests are idempotent. I.e. you get exactly t...
How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...st, then table B).
Another reason for deadlock in database can be missing indexes. When a row is inserted/update/delete, the database needs to check the relational constraints, that is, make sure the relations are consistent. To do so, the database needs to check the foreign keys in the related tab...
How to access cookies in AngularJS?
... on if you used $cookie to store value or $cookieStore. Of course, you'd really want to use one or the other.
In addition to adding reference to the js file you need to inject ngCookies into your app definition such as:
angular.module('myApp', ['ngCookies']);
you should then be good to go.
Her...
Shading a kernel density plot between two points.
...ge and I believe we had similar questions here too.
You need to find the index of the quantile values to get the actual (x,y) pairs.
Edit: Here you go:
x1 <- min(which(dens$x >= q75))
x2 <- max(which(dens$x < q95))
with(dens, polygon(x=c(x[c(x1,x1:x2,x2)]), y= c(0, y[x1:x2], 0), ...
Installing specific laravel version with composer create-project
The fastest and simplest way of installing Laravel is via composer command. From the laravel docs ( http://laravel.com/docs/quick ), it shows that we can install it with this:
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How dangerous is it to access an array out of bounds?
...rts of my program or even beyond that) or I am trying to set a value to an index outside of the array. The program sometimes crashes, but sometimes just runs, only giving unexpected results.
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Unit Testing bash scripts
...f the test harness for Perl but now has implementations in C, C++, Python, PHP, Perl, Java, JavaScript, and others.
bats-core
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Mysql order by specific ID values
... ORDER BY FIELD(ID,1,5,4,3)
It uses Field() function, Which "Returns the index (position) of str in the str1, str2, str3, ... list. Returns 0 if str is not found" according to the documentation. So actually you sort the result set by the return value of this function which is the index of the fiel...
Purpose of ESI & EDI registers?
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SI = Source Index
DI = Destination Index
As others have indicated, they have special uses with the string instructions. For real mode programming, the ES segment register must be used with DI and DS with SI as in
movsb es:di, ds:si
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