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Installing Ruby Gem in Windows
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edited Feb 8 '17 at 12:07
reducing activity
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What is the difference between shallow copy, deepcopy and normal assignment operation?
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original.
Here's a little demonstration:
import copy
a = [1, 2, 3]
b = [4, 5, 6]
c = [a, b]
Using normal assignment operatings to copy:
d = c
print id(c) == id(d) # True - d is the same object as c
print id(c[0]) == id(d[0]) # True - d[0] is the same object as c[0]
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What is the difference between atan and atan2 in C++?
What is the difference between atan and atan2 in C++?
11 Answers
11
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Change text color based on brightness of the covered background area?
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Here's the W3C algorithm (with JSFiddle demo too):
const rgb = [255, 0, 0];
// Randomly change to showcase updates
setInterval(setContrast, 1000);
function setContrast() {
// Randomly update colours
rgb[0] = Math.round(Math.random() * 255);
rgb[1] = Math.round(Math.random(...
Python: Check if one dictionary is a subset of another larger dictionary
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112
Convert to item pairs and check for containment.
all(item in superset.items() for item in subse...
Transposing a NumPy array
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248
It's working exactly as it's supposed to. The transpose of a 1D array is still a 1D array! (I...
App Inventor 2 中文网已全面升级https安全通道，数据安全有保障！ - App I...
经过一段时间的努力，App Inventor 2 中文网（fun123.cn）已全部升级https安全通道，以保护用户的访问及数据安全，值得注意的是MIT官方目前仍是http非安全通道。
App Inventor 2 中文网（fun123.cn）安全通道
MIT官方目前非安全通道...
利用 App Inventor 2 开发ChatGPT应用 - App Inventor 2 中文网 - 清泛网 - 专注C/C++及内核技术
利用 App Inventor 2 开发ChatGPT应用app_inventor_2_chatgptChatGPT大家应该不会陌生，它的回答内容非常的专业及深入，具有实际的可指导性。我们通过App Inventor 2开发一个简单的对话App，先看效果：您的浏览器不支持 video 标签代码块 ChatG...
App Inventor 2 模拟sleep函数 · App Inventor 2 中文网
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App Inventor 2 模拟sleep函数
App Inventor 2 模拟sleep函数
需要用到计时器组件：
实现代码如下：
测试方法如下：
代码快速导入技...
App Inventor 2 接入阿里云短信服务，实现短信验证码功能 · App Inventor 2 中文网
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App Inventor 2 接入阿里云短信服务，实现短信验证码功能
App Inventor 2 中文网原创开发阿里短信平台接入拓展
短信发送代码参考：
发送...