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How to create the most compact mapping n → isprime(n) up to a limit N?
...sumption for the range (1, N], where N is a constant.
Just an example of what I am looking for: I could represent every odd number with one bit e.g. for the given range of numbers (1, 10], starts at 3: 1110
...
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
...mostly for the Otsu thresholding, which is already done for you).
Here is what I obtain with your sample image and some other image with a sheet of paper I found around:
The median filter is used to remove minor details from the, now grayscale, image. It will possibly remove thin lines inside t...
Hidden Features of SQL Server
What are some hidden features of SQL Server ?
84 Answers
84
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Git: How to update/checkout a single file from remote origin master?
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@Mymozaaa The double dash designates that what follows is a file name. It's to prevent git from interpreting your file name as a branch in the unfortunate case you've got two with the same name.
– Joel Mellon
Apr 27 '16 at 18:36...
What is `git diff --patience` for?
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}
);
Post as a guest
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What is two way binding?
...ges, then its matching piece of UI (the view) will reflect that, no matter what. And the matching piece of UI (the view) can safely be used as a mean of collecting user inputs/data, so as to maintain the application data up-to-date.
A good two-way binding implementation should obviously make this c...
What is the proper way to check if a string is empty in Perl?
... answered Jan 11 '10 at 23:20
whatsisnamewhatsisname
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Is null check needed before calling instanceof?
...tring because it says "String s", s is not a String because it is null. So what the hell is s?
– Kai Wang
Sep 11 '17 at 15:51
1
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Is there a way to do repetitive tasks at intervals?
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The answer is incorrect depending on what the OP wants. If the OP wants an periodical execution regardless of how much time the worker uses, you would have to run do stuff in a go routine or else the next worker would execute immediately (when needing more than ...
Why does C++ not allow inherited friendship?
...hild of Bar can access a Foo by calling through its parent class.
Is this what you want?
class A
{
int x;
friend class B;
};
class B
{
protected:
// Now children of B can access foo
void foo(A& a, int n) { a.x = n; }
};
class D : public B
{
public:
foo(A...