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Convert a list to a string in C#
...d Feb 12 '11 at 23:46
Øyvind BråthenØyvind Bråthen
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How to convert C# nullable int to int
...r are all correct; I just wanted to add one more that's slightly cleaner:
v2 = v1 ?? default(int);
Any Nullable<T> is implicitly convertible to its T, PROVIDED that the entire expression being evaluated can never result in a null assignment to a ValueType. So, the null-coalescing operator ?...
How can I override Bootstrap CSS styles?
...Dec 21 '13 at 17:04
Markus KottländerMarkus Kottländer
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【笔记】如何训练自己的专属AI机器人之：Dify vs Coze - 人工智能(AI) - 清...
Dify（dify.ai）：开源，支持本地私有部署，开源社区非常活跃。https://github.com/langgenius/dify
Coze（coze.com）：不开源，字节旗下海外版（GPT4）。也有国内版(coze.cn)，用的国内大模型引擎，不过比海外版差多了。
Dify 是一个AI原生应...
Finding quaternion representing the rotation from one vector to another
...
Quaternion q;
vector a = crossproduct(v1, v2);
q.xyz = a;
q.w = sqrt((v1.Length ^ 2) * (v2.Length ^ 2)) + dotproduct(v1, v2);
Don't forget to normalize q.
Richard is right about there not being a unique rotation, but the above should give the "shortest arc," which...
App Inventor 2 Personal Image Classifier (PIC) 拓展：自行训练AI图像识...
... App Inventor 2 Personal Image Classifier (PIC) 拓展：自行训练AI图像识别模型，开发图像识别分类App
PersonalImageClassifier (PIC) 拓展
图像分类App原理介绍
开发步骤
在线训练AI模型，生成模型...
How do I do a case-insensitive string comparison?
...trings in all instances and therefore the normalization needs to be done ('å' vs. 'å'). D145 introduces "canonical caseless matching":
import unicodedata
def NFD(text):
return unicodedata.normalize('NFD', text)
def canonical_caseless(text):
return NFD(NFD(text).casefold())
NFD() is c...
Soft hyphen in HTML ( vs. ­)
...
&shy; is a soft hyphen, i.e., U+00AD: SOFT HYPHEN. For example,
innehålls&shy;förteckning
might be rendered as
innehållsförteckning
or as
innehålls-
förteckning
As of today, soft hyphens work in Firefox, Chrome, and Internet Explorer.
The wbr element
The wbr element is a wo...
Regular Expressions: Is there an AND operator?
...ed Jan 22 '09 at 18:07
Juha SyrjäläJuha Syrjälä
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How to Display blob (.pdf) in an AngularJS app
...ered Jun 11 '15 at 14:03
Jan TchärmänJan Tchärmän
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