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Exponential Time Hypothesis McCormick envelopes Decoy effect vs Attraction effect Substitution matrix Laminar M-Convex Minimization Read More

Take your way two ways to reduce carbon 1. carbon tax 2. carbon cap and trade Weak carbon reductions. customer surplus vs pollution tradeoff focusing on permit allocation mechanism free permit allocation mechanism: grandfather/ benchmarking lumpsum 一次性支付的金额 customer surplus: 愿意支付的金额与市场价格之差 heterog... Read More

-100 China Mobile -199 Yellow shared bicycle -99 Alipay for a fraudulent website -138 hkd credit card information leakage Read More

Excuse me. I dropped my fork. May I have another one? One more, please. 再来一份 Would you like another helping? 服务员问是否再来一份 Anyone wants a second helping? helping = 一份食物 How about seconds? Can I get a refill? 续杯 Drinks are bottomless. That’s an all-you-can-eat restaurant. 吃到饱 Excuse me. It has been almost thirty minutes since I placed m... Read More

2022年注定是不平凡的一年，从omicron 匆匆来袭为开端，又以最终病毒毒性变弱放松管控为结尾。而与疫情一波三折相呼应的是资本市场的风起云涌，这一年的波动率不可谓不大，如果有敏锐的观察力，能够把握进场时机，赚钱似乎不成问题。 从三月中旬恒生的跌入谷底又迅速反弹中，我们似乎看到了政策底的到来，随着对科技股政策的放松，科技股如同卸下了镣铐，股价毫无压力地冲破阻碍一飞冲天。然而好景不长，伴随着美联储加息美元回流，资产价格和汇率随之下跌，恒生在短暂冲高之后，又迎来漫长的看不到尽头的令人绝望的回撤。 终于随着年底政策的转向，绝大多数股票迎来了接近一倍的增长，如同被三年病毒折磨的压抑心情在尽情释放。然而一切在2023年会变好吗，答案从去年的复盘中就能得到。 这一年，我主要持仓在 Tenc... Read More

In this diary, I will record what happened on 18/1/2023. Take bus 11 to kung kau market. Then find the way to the community testing centres. It says disinfection time during 1.30 pm- 2 pm. When it is 2pm, I wait in line with booked sign. A man came to me, asked where am I going to? I said Chinese Mainland, then gave a note writing 150, TS(咽喉拭子)... Read More

Some thoughts are so naive. You should find some ideas from the literature. Then add the novelty. For example, the greedy commonly will not be the optimal policy, otherwise this problem will be super easy. Someone must find and publish it already. Notice the size of the problem. If it is very small, then using the solver is enough. Fo... Read More

abject orchard curate ramp up purge lay sewer pipes unscathed secrecy front and center Closed-circuit television surveillance vigilance Weibo, Chinese equivalent of twitter scrapped directive rhetoric Triennial 三年一次 fireside chat 炉边会谈 fit the bill 符合要求 accredited 官方认可的 cortex cortical 大脑皮层 皮层的 malaise (广泛存在的)难以捉摸的问题，无法... Read More

作用域 一切作用域都以代码块为单元 代码块可以是 模块文件；函数体；class 定义； 交互式每行的命令； 脚本文件； 脚本命令； eval() and exec() 函数的声明过程中，所有涉及到变量i的作用域内都不会对i进行赋值，仅仅只是保存了这个i变量名，只有在调用函数的时候才会进行赋值操作。 Python 在启动的时候就在内存中预先为常用的较小整数值(-5到256)创建好了对象 函数的默认参数是在函数声明时进行赋值的 Python 是词法作用域 词法作用域是关联在编译期间的，对于函数来说就是函数的定义文本段的位置决定这个函数所属的范围。 动态作用域是关联在程序执行期间的，... Read More

For vscode: Font color: “editor.foreground”: “#e280ae”, line number: “editor.selectionForeground”: “#6169e2”, Selection color: “editorLineNumber.activeForeground”: “#56a830”, Terminal: “terminal.foreground”: “#df6f3c”. For jupyter notebook: Read More