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How do you calculate the average of a set of circular data? [closed]

... sum_i_from_1_to_N cos(a[i]) The method given by starblue is computationally equivalent, but his reasons are clearer and probably programmatically more efficient, and also work well in the zero case, so kudos to him. The subject is now explored in more detail on Wikipedia, and with other uses, l...
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File Upload ASP.NET MVC 3.0

...maxRequestLength="x" /> in your web.config, where x is the number of KB allowed for upload. – rsbarro May 22 '11 at 20:33 86 ...
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Mock vs MagicMock

My understanding is that MagicMock is a superset of Mock that automatically does "magic methods" thus seamlessly providing support for lists, iterations and so on... Then what is the reason for plain Mock existing? Isn't that just a stripped down version of MagicMock that can be practically ...
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Detect network connection type on Android

...twork is connected and fast enough to meet your demands you have to handle all the network types returned by getSubType(). It took me an hour or two to research and write this class to do just exactly that, and I thought I would share it with others that might find it useful. Here is a Gist of the...
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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home

...'`" But standard double-clickable application bundles don't use JDKs installed under /Library/Java at all. Old-style .app bundles using Apple's JavaApplicationStub will use Apple Java 6 from /System/Library/Frameworks, and new-style ones built with AppBundler without a bundled JRE will use the "p...
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What is the difference between ManualResetEvent and AutoResetEvent in .NET?

...or. The ManualResetEvent is the door, which needs to be closed (reset) manually. The AutoResetEvent is a tollbooth, allowing one car to go by and automatically closing before the next one can get through. share | ...
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Is it possible to forward-declare a function in Python?

...rwards is impossible, what about defining it in some other module? Technically you still define it first, but it's clean. You could create a recursion like the following: def foo(): bar() def bar(): foo() Python's functions are anonymous just like values are anonymous, yet they can be ...
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The following sections have been defined but have not been rendered for the layout page “~/Views/Sha

... _Layout.cshtml has something like this: @RenderSection("scripts") Then all Views that use that Layout must include a @section with the same name (even if the contents of the section are empty): @{ ViewBag.Title = "Title"; Layout = "~/Views/Shared/_Layout.cshtml"; } @section scripts{ ...
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Why do we always prefer using parameters in SQL statements?

...uld be SELECT empSalary from employee where salary = 0 or 1=1 whereby all empSalaries would be returned. Further, a user could perform far worse commands against your database, including deleting it If they wrote 0; Drop Table employee: SELECT empSalary from employee where salary = 0; Drop Ta...
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How can I rename a field for all documents in MongoDB?

...above are: { upsert:false, multi:true }. You need the multi:true to update all your records. Or you can use the former way: remap = function (x) { if (x.additional){ db.foo.update({_id:x._id}, {$set:{"name.last":x.name.additional}, $unset:{"name.additional":1}}); } } db.foo.find().forEach...