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How do you get the magnitude of a vector in Numpy?
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@FedericoPoloni, at least with numpy version 1.13.3 I get inf when computing np.linalg.norm([1e200,1e200]).
– user545424
Mar 26 '19 at 18:18
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How do I view events fired on an element in Chrome DevTools?
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For jQuery (at least version 1.11.2) the following procedure worked for me.
Right click on the element and open 'Chrome Developer Tools'
Type $._data(($0), 'events'); in the 'Console'
Expand the attached objects and double click the hand...
Using boolean values in C
...es. In that case, one should definitely use <stdbool.h> since it at least has the benefit of being standardized.
Whatever the boolean constants are called, use them only for initialization. Never ever write something like
if (ready == TRUE) ...
while (empty == FALSE) ...
These can always...
Storing C++ template function definitions in a .CPP file
...e correct syntax is (as did I) for explicit template specialisation (or at least in VS2008), its the following...
In your .h file...
template<typename T>
class foo
{
public:
void bar(const T &t);
};
And in your .cpp file
template <class T>
void foo<T>::bar(const T &...
Redirect all to index.php using htaccess
...'re just matching on . which is one instance of any character, you need at least .* to match any number of instances of any character.
The $_GET['path'] variable will contain the fake directory structure, so /mvc/module/test for instance, which you can then use in index.php to determine the Control...
Python: Is it bad form to raise exceptions within __init__?
...odes, is that error codes usually can't be returned by constructors. So at least in languages like C++, raising exceptions is the only way to signal errors.
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Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...they are apparently being decoded incorrectly for non-ascii characters, at least on Windows. E.g. running check_output("dir"), extracting a file name from the output and then trying to access it with open will fail if the filename contains German umlauts. Might be a bug.
– kdb
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Is there a C++ gdb GUI for Linux? [closed]
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Also available on Fedora 30 (at least). I just chanced on this question and nemiver.
– user3236841
Oct 18 '19 at 18:10
add a comment...
When should you branch?
...rsion Control System - feature) is to achieve code isolation.
You have at least one branch, which can be enough for sequential development, and is used for many tasks being recording (committed) on that same unique branch.
But that model shows quickly its limit:
When you have a development effo...
#pragma pack effect
...s. Retrieving a DWORD at an address which isn't divisible by 4 requires at least one extra CPU cycle on a 32 bit processor. So, if you have e.g. three char members char a, b, c;, they actually tend to take 6 or 12 bytes of storage.
#pragma allows you to override this to achieve more efficient spac...