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Parallel.ForEach vs Task.Factory.StartNew
.... I made a research calling the following method:
public static double SumRootN(int root)
{
double result = 0;
for (int i = 1; i < 10000000; i++)
{
result += Math.Exp(Math.Log(i) / root);
}
return result;
}
Execution of this method takes about 0.5se...
How do SQL EXISTS statements work?
... FROM SUPPLIERS JOIN ORDERS ... on SQL Server, haven't tested on Oracle or MySQL lately.
– OMG Ponies
May 1 '11 at 16:40
...
How to expand/collapse a diff sections in Vimdiff?
...
gvim -d main.sql backup.sql &
I find that annoyingly one file has MySQL keywords in lowercase the other uppercase showing differences on practically every other line
:set diffopt+=icase
this updates the screen dynamically & you can just as easily switch it off again
...
了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
... 的字符串的副本，其格式符合 path 语法规则。
std::string root_directory( )：在提供了路径的情况下，此 API 将返回根目录，否则将返回空字符串。例如，如果路径包含/tmp/var1，则此例程将返回 /，即 UNIX 文件系统的根。不过，如果路...
What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
...ink I'm quite convinced that the given beforefieldinit optimization is the root cause. It might be that some of the actual explanation is different from what I mentioned, but the root cause is likely the same thing.
– user541686
Aug 11 '12 at 1:39
...
How to provide different Android app icons for different gradle buildTypes?
...is as follows, and your launcher icon is called ic_launcher.png:
[Project Root]
-[Module]
-src
-main
-res
-drawable-*
-ic_launcher.png
Then to add a separate icon for the debug build type, you add:
[Project Root]
-[Module]
-src
-main
...
Create SQL script that create database and tables
...
Anyway to do this is standard SQL for mysql for example?
– Benjamin Goodacre
Oct 21 '19 at 11:56
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How to import a Python class that is in a directory above?
...lar system
This is why we write import foo to load a module "foo" from the root namespace, instead of writing:
foo = dict(); # please avoid doing this
with open(os.path.join(os.path.dirname(__file__), '../foo.py') as foo_fh: # please avoid doing this
exec(compile(foo_fh.read(), 'foo.py', 'exec...
git --git-dir not working as expected
...your comment above, it sounds like you are still running into a problem:
root@erx [/]# git --git-dir=/home/domain/.git --work-tree=/home/domain/ pull origin master
fatal: /usr/local/libexec/git-core/git-pull cannot be used without a working tree
It sounds like you might be intending to run this ...
Float vs Decimal in ActiveRecord
...In Rails 4.1.0, I have faced problem with saving latitude and longitude to MySql database. It can't save large fraction number with float data type. And I change the data type to decimal and working for me.
def change
change_column :cities, :latitude, :decimal, :precision => 15, :scale =...