llf(x) is planting

Binomial Option Pricing: Chap 1

Math

Finance

How to write a proof

Math

Conditional Proof Proof by Cases Proof by Contradiction Proof by Induction

Reading

Record

Workflow

Efficiency

读多想少想多读少的辩证法

Command Line Tools

Code

Powershell

https://git-scm.com/downloads/win

CSS Styles

Code

CSS

<div style="">

</div>

<head>
  <style>
    /* ... */
  </style>
</head>

<head>
  <link rel="stylesheet" href="style.css">
</head>

Inequalities

Math

Inequality

TODO: inequality # 1. Triangle Inequality The sum of any two sides > the remaining side

Scrcpy Wireless Android Casting

Android

Maybe Escrcpy is a better solution https://github.com/viarotel-org/escrcpy

个人史情绪波动时刻与场景

Record

被打, 被欺负, 被误会, 被欺骗, 被造谣

饥饿，美食

看画, 看书精彩内容, 音乐 🎨📚🎶

和朋友玩，游戏

解出难题，理解难题，复习，好成绩 🧩📚🏆

面向个人需求的代码 💻

ddl，拖延，考试 ⏳📅📝

家庭关系, 朋友关系, 男女关系 👨‍👩‍👧‍👦👫💑

Construct N, Z, Q, R, C

Math

There are 2 common ways to construct \mathbb{N}

Calc3 Notes

Math

\begin{align*} &\vec{u} =< u_1 ,u_2 ,u_3> \\ &\vec{v} =< v_1 ,v_2 ,\ v_3> \\ &|\vec{u} |=\sqrt{u_1^2 +u_2^2 +u_3^2}\\ &\hat{u} =\frac{\vec{u}}{|\vec{u}|}\\ &\vec{u}…

[Proof] Geometric Series

Math

a_{n+1} = q \cdot a_n

[Proof] Quadratic Formula

Math

\begin{align*} &ax^2+bx+c=0 \ (a \neq 0)…

[Proof] sqrt(2) is not a rational number

Math

This classic proof is associated with

群环域模

Math

以下是群、环、域和模的基础定义。这些都是抽象代数中的重要概念，每个都有不同的代数结构和运算规则。

初探SageMath

Math

Code

https://sagecell.sagemath.org/

博客标签设计

Record

Idea

如何高效获取「长视频」的关键信息

Workflow

Tool

去DownSub等可以Download Youtube Subtitles的网站, 粘贴视频链接, 下载txt字幕

Quarto Markdown (.qmd) Testing

Record