Blog posts

SymPy 符号计算笔记

2 minute read

Published: May 03, 2025

从 Hamilton 原理及对称性导出低速弱场下 Lagrange 量

1 minute read

Published: May 01, 2025

本文给出从 Hamilton 原理及对称性导出低速弱场下 Lagrange 量的方法.

普物小问题(03)：电磁场低速下换系问题

less than 1 minute read

Published: April 30, 2025

普物小问题(02)：不同参考系下的能量变化问题

1 minute read

Published: April 20, 2025

普物小问题(01)：变质量的两种情况

less than 1 minute read

Published: March 22, 2025

Pappus 定理简介

1 minute read

Published: March 20, 2025

Pappus 定理的简介和应用介绍.

一种三重叉积的证明

1 minute read

Published: February 19, 2025

本文介绍一种较为巧妙的三重叉积的证明方法.

齐次微分方程解法

1 minute read

Published: February 18, 2025

本文给出常见的齐次微分的解法，并给出其推广形式.

常数变易法的原理及推广

2 minute read

Published: February 07, 2025

本文介绍了常数变易法的原理，并给出在多个方程的情况下的推广.

PINN(01) 简介和基本原理

less than 1 minute read

Published: January 23, 2025

PINN 和可微物理学习笔记（01）

有限差分法求解一维定态 Schrodinger 方程

2 minute read

Published: January 11, 2025

有限差分法的简单介绍，以及在求解一维定态 Schrodinger 方程中的应用.

转义字符表

less than 1 minute read

Published: October 19, 2024

scanf 与空白字符

1 minute read

Published: October 18, 2024

傅科摆与微分几何

3 minute read

Published: July 05, 2024

在《新概念物理》中给出了一个简略的对傅科摆的几何分析，本文通过微分几何对此分析给出一个严谨的推导.

四元数基本运算

3 minute read

Published: September 10, 2023

矢量分析指标法

5 minute read

Published: July 20, 2023

指标法的简要介绍以及其在矢量分析中的运用。

有关 dx 的随想

1 minute read

Published: July 17, 2023

GCore

less than 1 minute read

Published: February 13, 2021

一个基于 Tang Nano FPGA 的极简 RISC CPU

Verilog 笔记

4 minute read

Published: January 25, 2021

这里整理了常用的 Verilog 代码笔记.

Deep Dream

3 minute read

Published: December 07, 2018

Makedown 测试

5 minute read

Published: August 29, 2018

MathJax with Jekyll

2 minute read

Published: July 20, 2018

One of the rewards of switching my website to Jekyll is the ability to support MathJax, which means I can write LaTeX-like equations that get nicely displayed in a web browser, like this one \( \sqrt{\frac{n!}{k!(n-k)!}} \) or this one \( x^2 + y^2 = r^2 \).