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How to calculate the angle between a line and the horizontal axis?
In a programming language (Python, C#, etc) I need to determine how to calculate the angle between a line and the horizontal axis?
...
How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]
...u one without dashes, without colons, with a weeknumer instead of a month, etc.
– Peter
Oct 2 '13 at 16:08
2
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GitHub: What is a “wip” branch?
... can happen also on any other competitive platform, e.g. Bitbucket, GitLab etc.
It can be the case also with your Git (the VCS, not GitHub, GitLab, etc. - it's not the same) on local machine. In situations when you would like to save your progress on current branch and move to another it can be he...
How can I reliably determine the type of a variable that is declared using var at design time?
... of information about what namespace, types and methods (and constructors, etc) are in the source code of the program. Analyzing every single line of code in every method body would take way too long if you're trying to do it between keystrokes.
When the IDE needs to work out the type of a particu...
How should I ethically approach user password storage for later plaintext retrieval?
...ther to email a forgotten password link, walk them through over the phone, etc.) When I can I fight bitterly against this practice and I do a lot of ‘extra’ programming to make password resets and administrative assistance possible without storing their actual password.
...
How to prevent favicon.ico requests?
...this:-
If the server document root is say /var/www/html then add this to /etc/httpd/conf/httpd.conf:-
Alias /favicon.ico "/var/www/html/favicon.ico"
<Directory "/var/www/html">
<Files favicon.ico>
ExpiresActive On
ExpiresDefault "access plus 1 month"
</Files>...
What is the difference between HashSet and List?
...m mathematical set operations against a Set: Union/Intersection/IsSubsetOf etc.
HashSet doesn't implement IList only ICollection
You cannot use indices with a HashSet, only enumerators.
The main reason to use a HashSet would be if you are interested in performing Set operations.
Given 2 sets: ha...
Detecting Unsaved Changes
...
I like the approach of comparing defaultValue etc properties rather than setting a dirty bit. This means that if someone changes a field, then changes it back, then the form will not report as dirty.
– thelem
Jun 26 '14 at 15:04
...
Default value to a parameter while passing by reference in C++
...st &); // B defaulted
void foo (C const &); // A & B defaulted etc...
It is also possible to redefine default arguments to virtual functions in derived class, which overloading avoids:
class Base {
public:
virtual void f1 (int i = 0); // default '0'
virtual void f2 (int);
inli...
Trying to start a service on boot on Android
...r>
</receiver>
(you don't need the android:enabled, exported, etc., attributes: the Android defaults are correct)
In MyBroadcastReceiver.java:
package com.example;
public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, In...