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how to find host name from IP with out login to the host
... that can be used for reversed lookup is dig with the -x option:
$ dig -x 72.51.34.34
; <<>> DiG 9.9.2-P1 <<>> -x 72.51.34.34
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12770
;; flags: qr rd ra; QUERY: 1, ANSWER: 1...
How do I get a YouTube video thumbnail from the YouTube API?
... with PHP
Retrieve YouTube Video Details using JavaScript - JSON & API v2
You can also use the YouTube Video Information Generator tool to get all
the information about a YouTube video by submitting a URL or video id.
s...
ContinuousSpeech 连续语音识别扩展：持续语音识别无需重复启动 · App Inventor 2 中文网
... 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 搜索 ...
How to merge 2 JSON objects from 2 files using jq?
...82461861,
"value": {
"aaa": {
"value1": "v1",
"value2": "v2",
"value3": "v3",
"value4": 4
},
"bbb": {
"value1": "v1",
"value2": "v2",
"value3": "v3"
},
"ccc": {
"value1": "v1",
"value2": "v2"
},
"ddd": {
"value...
Grab a segment of an array in Java without creating a new array on heap
...
(Honestly, I feel my answer is worthy of deletion. The answer by @unique72 is correct. Imma let this edit sit for a bit and then I shall delete this answer.)
I don't know of a way to do this directly with arrays without additional heap allocation, but the other answers using a sub-list wrappe...
Choosing between MEF and MAF (System.AddIn)
...ot automatically deal with versioning
MAF: Simple calculator with V1 and V2 version MAF plugins
(Managed Addin Framework)
Shows how to build up the calculator by using a V1 plugin and then how to move over to a V2 plugin while maintaining backwards-compatibility (note: you can find the V2 versio...
How do I detect if Python is running as a 64-bit application? [duplicate]
...2.6, 2.7, Python 3.x.
$ arch -i386 /usr/local/bin/python2.7
Python 2.7.9 (v2.7.9:648dcafa7e5f, Dec 10 2014, 10:10:46)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform, sys
>>> platform....
ComponentGroup 组件组扩展：监控内容变化和批量启用禁用组件 · App Inventor 2 中文网
... 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 搜索 ...
How to determine if a point is in a 2D triangle? [closed]
....x) * (p1.y - p3.y);
}
bool PointInTriangle (fPoint pt, fPoint v1, fPoint v2, fPoint v3)
{
float d1, d2, d3;
bool has_neg, has_pos;
d1 = sign(pt, v1, v2);
d2 = sign(pt, v2, v3);
d3 = sign(pt, v3, v1);
has_neg = (d1 < 0) || (d2 < 0) || (d3 < 0);
has_pos = (d1 &...
how does multiplication differ for NumPy Matrix vs Array classes?
...
The main reason to avoid using the matrix class is that a) it's inherently 2-dimensional, and b) there's additional overhead compared to a "normal" numpy array. If all you're doing is linear algebra, then by all means, feel free t...