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Finding quaternion representing the rotation from one vector to another
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@sinisterchipmunk Actually, if v1 = v2, crossproduct would be (0,0,0) and w would be positive, which normalizes to identity. According to gamedev.net/topic/… it should work just fine also for v1 = -v2 and in their close vicinity.
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Open file dialog box in JavaScript
...ou linked to is not a good solution. This will cause IE to throw an error if you end up submitting the associated form programmatically as well.
– Ray Nicholus
Oct 22 '13 at 21:48
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How do I search an SQL Server database for a string?
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This will search every column of every table in a specific database. Create the stored procedure on the database that you want to search in.
The Ten Most Asked SQL Server Questions And Their Answers:
CREATE PROCEDURE FindMyData_String
@DataToFind NVARCHAR(4000),
@Exact...
How to have click event ONLY fire on parent DIV, not children?
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If the e.target is the same element as this, you've not clicked on a descendant.
$('.foobar').on('click', function(e) {
if (e.target !== this)
return;
alert( 'clicked the foobar' );
});
.foobar {
padd...
How do I improve ASP.NET MVC application performance?
...tion
Utilize ETags and expiration - Write your custom ActionResult methods if necessary
Consider using the RouteName to organize your routes and then use it to generate
your links, and try not to use the expression tree based ActionLink method.
Consider implementing a route resolution caching strat...
STL 算法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...> size_t count(InIt first, InIt last,const T& val, Dist& n);
count_if
<algorithm>
利用输入的操作符,对标志范围内的元素进行操作,返回结果为true的个数
函数原形
template<class InIt, class Pred, class Dist> size_t count_if(InIt first, InIt last, Pred ...
Difference between Big-O and Little-O Notation
What is the difference between Big-O notation O(n) and Little-O notation o(n) ?
4 Answers
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ASP.NET MVC Relative Paths
...~/Scripts/jquery-1.2.6.js")%> make the server render the path, whereas, if you used "/Scripts/jquery-1.2.6.js", it would just be served straight up to the client, therefore, reducing one more thing the server has to do? I thought i read somewhere the more you can avoid having the server process,...
When is the finalize() method called in Java?
...ces to the object.
As Joachim pointed out, this may never happen in the life of a program if the object is always accessible.
Also, the garbage collector is not guaranteed to run at any specific time. In general, what I'm trying to say is finalize() is probably not the best method to use in gener...
Adding a new array element to a JSON object
... it so you can apply the changes to a native JavaScript Object, then stringify back to JSON
var jsonStr = '{"theTeam":[{"teamId":"1","status":"pending"},{"teamId":"2","status":"member"},{"teamId":"3","status":"member"}]}';
var obj = JSON.parse(jsonStr);
obj['theTeam'].push({"teamId":"4","status":"...