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How to work with complex numbers in C?
...introduced in mathematics, from the need of calculating negative quadratic roots. Complex number concept was taken by a variety of engineering fields.
Today that complex numbers are widely used in advanced engineering domains such as physics, electronics, mechanics, astronomy, etc...
Real and imag...
How to solve privileges issues when restore PostgreSQL Database
...sers but as stated in the comments this should not be used in production:
root@server:/var/log/postgresql# sudo -u postgres psql
psql (8.4.4)
Type "help" for help.
postgres=# \du
List of roles
Role name | Attributes | Member of
-----------------+-------------+-----------
&l...
How do I parse XML in Python?
...ds on the API, which ElementTree defines.
First build an Element instance root from the XML, e.g. with the XML function, or by parsing a file with something like:
import xml.etree.ElementTree as ET
root = ET.parse('thefile.xml').getroot()
Or any of the many other ways shown at ElementTree. Then ...
Retrieve the maximum length of a VARCHAR column in SQL Server
...
for mysql its length not len
SELECT MAX(LENGTH(Desc)) FROM table_name
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examining history of deleted file
...ice: In that case, the ^ notation comes handy: it refers to the repository root, so you can say svn cat ^/local/file@REV (depending on the distance between the repository root and URL).
– musiphil
Sep 11 '13 at 22:49
...
Nginx Different Domains on Same IP
...uld be
server {
listen 80;
server_name www.domain1.com;
root /var/www/domain1;
}
server {
listen 80;
server_name www.domain2.com;
root /var/www/domain2;
}
Note, I have only included the relevant lines. Everything else looked okay but I just deleted it for clar...
Laravel Eloquent groupBy() AND also return count of each group
...
Open config/database.php
Find strict key inside mysql connection settings
Set the value to false
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How to dynamically change header based on AngularJS partial view?
...
I personally prefer to set the title on the $rootScope instead of creating an additional controller.
– DDA
Jul 18 '14 at 20:40
...
PHP convert XML to JSON
...ve, so please bear with simple mistakes.
function xml2js($xmlnode) {
$root = (func_num_args() > 1 ? false : true);
$jsnode = array();
if (!$root) {
if (count($xmlnode->attributes()) > 0){
$jsnode["$"] = array();
foreach($xmlnode->attributes()...
How do I include a file over 2 directories back?
... those links if you move your file, is:
require_once($_SERVER['DOCUMENT_ROOT'] . 'directory/directory/file');
DOCUMENT_ROOT is a server variable that represents the base directory that your code is located within.
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