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Shortest distance between a point and a line segment
...len_sq != 0) //in case of 0 length line
param = dot / len_sq;
var xx, yy;
if (param < 0) {
xx = x1;
yy = y1;
}
else if (param > 1) {
xx = x2;
yy = y2;
}
else {
xx = x1 + param * C;
yy = y1 + param * D;
}
var dx = x - xx;
var dy = y - yy;
ret...
Split (explode) pandas dataframe string entry to separate rows
...column:
In [46]: df
Out[46]:
var1 var2 var3
0 a,b,c 1 XX
1 d,e,f,x,y 2 ZZ
In [47]: explode(df.assign(var1=df.var1.str.split(',')), 'var1')
Out[47]:
var1 var2 var3
0 a 1 XX
1 b 1 XX
2 c 1 XX
3 d 2 ZZ
4 e 2 ZZ
5 f 2 ...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...
You should use 400 for business rules. Don't return 2xx if the order was not accepted. HTTP is an application protocol, never forget that. If you return 2xx the client can assume the order was accepted, regardless of any information you send in the body.
From RESTful Web Servi...
Requests — how to tell if you're getting a 404
...us_code
404
If you want requests to raise an exception for error codes (4xx or 5xx), call r.raise_for_status():
>>> r = requests.get('http://httpbin.org/status/404')
>>> r.raise_for_status()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
F...
How to preventDefault on anchor tags?
...;anchor</a> (link, don't reload)<br />
<a id="link-5" name="xxx" ng-click="value = 5">anchor</a> (no link)<br />
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Android Studio - How to increase Allocated Heap Size
...p/Contents/bin/studio.vmoptions
Change the content to
-Xms128m
-Xmx4096m
-XX:MaxPermSize=1024m
-XX:ReservedCodeCacheSize=200m
-XX:+UseCompressedOops
Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. Your JVM w...
Error java.lang.OutOfMemoryError: GC overhead limit exceeded
...oo small. If necessary, this feature can be disabled by adding the option -XX:-UseGCOverheadLimit to the command line.
EDIT: looks like someone can type faster than me :)
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成功熬了四年还没死？一个IT屌丝创业者的深刻反思 - 资讯 - 清泛网 - 专注C...
...只能是圈子进入你。很多人会四处找关系，“帮我介绍给xxx吧，我想进入你们的圈子”。这样的人是永远进不去这个圈子的，因为圈子的天性是，永远追求更高一个层级的人。
而我们的大部分人，其实都在以低一级的属性，...
Creating and Update Laravel Eloquent
...: insert into `...` (`...`,.., `updated_at`, `created_at`) values (...,.., xxxx-xx-xx xx:xx:xx, xxxx-xx-xx xx:xx:xx))'
As there would be some field which will need value while inserting new row and it will not be possible as either its not defined in $fillable or it doesnt have default value.
For m...
How can I give eclipse more memory than 512M?
...e's that section on my Linux box:
-vmargs
-Dosgi.requiredJavaVersion=1.5
-XX:MaxPermSize=512m
-Xms512m
-Xmx1024m
And here's that section on my Windows box:
-vmargs
-Xms256m
-Xmx1024m
But, I've failed at setting it higher than 1024 megs. If anybody knows how to make that work, I'd love to know....