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NumPy array initialization (fill with identical values)
I need to create a NumPy array of length n , each element of which is v .
7 Answers
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How to test equality of Swift enums with associated values
... case Number(Int)
}
public func ==(lhs: SimpleToken, rhs: SimpleToken) -> Bool {
switch (lhs, rhs) {
case let (.Name(a), .Name(b)),
let (.Number(a), .Number(b)):
return a == b
default:
return false
}
}
It's far from ideal — there's a lot of repetition ...
visual c++: #include files from other projects in the same solution
...ck on the project, and select Properties.
Select Configuration Properties->C/C++->General.
Set the path under Additional Include Directories.
How to include
To include the header file, simply write the following in your code:
#include "filename.h"
Note that you don't need to specify the ...
Eclipse HotKey: how to switch between tabs?
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I've added "next tab" -> "Ctrl + Tab" "previous tab" -> "Ctrl + Shift + Tab" like it is in Firefox
– Bruno Bieri
Aug 18 '12 at 5:29
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CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...cnf /etc/my.cnf
#echo "/usr/local/mysql/bin/mysqld_safe &" >>/etc/rc.local
二、安装PCRE
PCRE是perl所用到的正则表达式，目的是让所装的软件支持正则表达式。默认情况下，Nginx只处理静态的网页请...
How do cache lines work?
... cache line boundary (the largest address below the one you need that is multiple of 64).
Modern PC memory modules transfer 64 bits (8 bytes) at a time, in a burst of eight transfers, so one command triggers a read or write of a full cache line from memory. (DDR1/2/3/4 SDRAM burst transfer size is...
How to get cumulative sum
...t1.SomeNumt, SUM(t2.SomeNumt) as sum
from @t t1
inner join @t t2 on t1.id >= t2.id
group by t1.id, t1.SomeNumt
order by t1.id
SQL Fiddle example
Output
| ID | SOMENUMT | SUM |
-----------------------
| 1 | 10 | 10 |
| 2 | 12 | 22 |
| 3 | 3 | 25 |
| 4 | 15 | 40...
How to debug PDO database queries?
...t add new line before your query then you will show the debug lines.
$db->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING );
$db->query('SELECT *******');
share
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java.lang.UnsupportedClassVersionError Unsupported major.minor version 51.0 [duplicate]
...may inadevertedly override the local bundle properties (right mouse click->properties->Java compiler) with a specific compliance level. When you change the local settings (window ->preferences) these bundles will not be automatically 'downgraded'. This may happen sometimes when you are chan...
Regex to get string between curly braces
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If your string will always be of that format, a regex is overkill:
>>> var g='{getThis}';
>>> g.substring(1,g.length-1)
"getThis"
substring(1 means to start one character in (just past the first {) and ,g.length-1) means to take characters until (but not including) the cha...