大约有 44,000 项符合查询结果（耗时：0.0437秒） [XML]
R programming: How do I get Euler's number?
... The fact that 25000 people have visited this page without complaint until now suggests to me that many people read "Euler's constant" to mean e, and if you change the title, future searchers will fail to find this page. Also, glancing at wikipedia, it seems this reading of "Euler's constant" is qui...
Fastest Way to Find Distance Between Two Lat/Long Points
...s of Geometry data types in MyISAM table. As of Mysql 5.7.5, InnoDB tables now also support SPATIAL indices.
Create a SPATIAL index on these points
Use MBRContains() to find the values:
SELECT *
FROM table
WHERE MBRContains(LineFromText(CONCAT(
'('
, @lon + 10 / ( 111.1 / cos...
Is there any “font smoothing” in Google Chrome?
...n (unproven) solution that recommends using only TTF/OTF fonts as they are now supported by nearly all browsers.
3.) The Google Chrome developer team works on that issue. As there have been several huge changes in the rendering engine there's obviously something in progress.
I've written a large b...
How to use Swift @autoclosure
... Great explanation. Note also that in Swift 1.2 'autoclosure' is now an attribute of the parameter declaration, so it's func f(@autoclosure pred: () -> Bool)
– Masa
Feb 12 '15 at 22:09
...
What character to use to put an item at the end of an alphabetic list?
...a folder with this at the beginning of the name on my Sharepoint drive and now it's there and I can't access it or delete it. :|
– Devil's Advocate
Jun 28 '16 at 21:05
9
...
creating a random number using MYSQL
I would like to know is there a way to select randomly generated number between 100 and 500 along with a select query.
6 A...
Securely storing environment variables in GAE with app.yaml
...
@Ben Non-Firebase functions do support env vars (now, at least).
– NReilingh
Apr 1 '19 at 10:21
3
...
Hide hidden(dot) files in github atom editor
...gs" button of this package and then check the "Hide Ignored Names" choice.
Now go to Edit > Preferences > Core . In the Ignored Names box enter .* this will hide all the files/folders which are usually hidden in other file explorers.
If you want to hide normal files/folders just add them to ...
.htaccess mod_rewrite - how to exclude directory from rewrite rule
...ectories on my server from these rules, so they can become accessible. For now all requests are sent to index.php file.
6 ...
Django using get_user_model vs settings.AUTH_USER_MODEL
...eignKey/ManyToMany-relation.
From the changelog:
get_user_model() can now be called at import time, even in modules that define models.
so... is there still a reason to use settings.AUTH_USER_MODEL? Well, the docs still recommend the settings.AUTH_USER_MODEL (which is a string) for defining r...