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Detect Retina Display
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295
In order to detect the Retina display reliably on all iOS devices, you need to check if the de...
How exactly does tail recursion work?
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answered Mar 20 '13 at 9:11
Alexey FrunzeAlexey Frunze
56.8k99 gold badges6767 silver badges154154 bronze badges
...
Get top n records for each group of grouped results
... select *
from mytable
where `group` = 1
order by age desc
LIMIT 2
)
UNION ALL
(
select *
from mytable
where `group` = 2
order by age desc
LIMIT 2
)
There are a variety of ways to do this, see this article to determine the best route for your situation:
http://www.xaprb.com/b...
Determine the data types of a data frame's columns
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220
Your best bet to start is to use ?str(). To explore some examples, let's make some data:
s...
oracle10g 网址收藏 - ORACLE - 清泛IT论坛，有思想、有深度
...迅雷进行下载，就不用登陆OTN了：
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Microsoft Windows (32-bit)
http://download.oracle.com/otn/nt/oracle10g/10201/10201_database_win32.zip
http://download.oracle.com/otn/nt/oracle10g/10201/10201_client_win32.zip
...
App Inventor 2 连接调试器的几种方式的比较 - App Inventor 2 中文网 - 清...
App Inventor 2 连接调试器的几种方式的比较app_inventor_2_debug从功能上来说大致分为3类，即：但是每种类型下面仍有一些不同的选择，下面开始介绍各种连接方式的特点。连接方式测试介质特点AI伴侣Android手机特别适合小朋友，简单...
轻松学习App开发？App Inventor 2 中文网搞定！ - App Inventor 2 中文网 -...
轻松学习App开发？App Inventor 2 中文网搞定！chatgpt_ai2有没有想过自己动手开发一个属于自己的应用程序？有没有因为开发难度而望而却步？那么现在，我有一个好消息要告诉你，App Inventor 2 中文网（fun123 cn）能帮你搞定！App Inv ...
Python integer division yields float
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292
Take a look at PEP-238: Changing the Division Operator
The // operator will be available t...
What is the Difference Between read() and recv() , and Between send() and write()?
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edited Jul 25 '19 at 9:07
smbear
92299 silver badges1515 bronze badges
answered Nov 24 '0...
Is there a way to list pip dependencies/requirements?
...o I am providing an updated answer.
This was tested with pip versions 8.1.2, 9.0.1, 10.0.1, and 18.1.
To get the output without cluttering your current directory on Linux use
pip download [package] -d /tmp --no-binary :all: -v
-d tells pip the directory that download should put files in.
Bette...