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How do you detect where two line segments intersect? [closed]
...p − q) × r
u = (p − q) × r / (s × r)
To reduce the number of computation steps, it's convenient to rewrite this as follows (remembering that s × r = − r × s):
u = (q − p) × r / (r × s)
Now there are four cases:
If r × s = 0 and (q − p) × r = 0, then t...
JavaScript, Node.js: is Array.forEach asynchronous?
...tatements for instance and you should rather use a for loop: stackoverflow.com/questions/37962880/…
– Richard
Jun 22 '16 at 9:27
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How to revert initial git commit?
I commit to a git repository for the first time; I then regret the commit and want to revert it. I try
9 Answers
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How to solve java.lang.NoClassDefFoundError?
I've tried both the example in Oracle's Java Tutorials . They both compile fine, but at run-time, both come up with this error:
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Why does .NET foreach loop throw NullRefException when collection is null?
...
Well, the short answer is "because that's the way the compiler designers designed it." Realistically, though, your collection object is null, so there's no way for the compiler to get the enumerator to loop through the collection.
If you really need to do something like this, ...
Where are static methods and static variables stored in Java?
...y be allocated on the heap. This might add some information: stackoverflow.com/questions/3800444/…
– Thomas
Dec 5 '11 at 16:01
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What is the correct way to create a single-instance WPF application?
...{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
mutex.ReleaseMutex();
} else {
MessageBox.Show("only one instance at a time");
}
}
}
So, if our...
How to design a multi-user ajax web application to be concurrently safe
I have a web page that shows a large amount of data from the server. The communication is done via ajax.
8 Answers
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TSQL - How to use GO inside of a BEGIN .. END block?
...SS SQLCMD Mode Script (i.e. a master deployment script) that calls (via :r command) other SS Scripts (i.e. sub-deployment scripts) with some of those calls inside if Statements. Oded's, mellamokb's and Andy Joiner's Answers of enclosing all those Statements in exec Calls / begin-end's are non-start...