1. Geometry and Complex Arithmetic
Introduction to complex numbers via Cardano's formula, Euler's formula, and geometric applications of complex arithmetic.
泊桥的博客
一本正在使用的数学与物理笔记本，兼具学习记录和思考的功能。
2026
二月
Fundamentals of Differential Calculus
An introduction to limits, derivatives, and the fundamental theorem of calculus, presented in the classical mathematical style.
Hello World
A brief introduction to this site: what it is, what you will find here, and how the notes are organised.
Building a Mathematics Notebook with Astro
Technical notes on constructing a static site for mathematical writing, with KaTeX rendering and content collections.
Sequences and Convergence in the Real Numbers
Definitions and basic properties of convergent sequences, Cauchy sequences, and the completeness of the reals.
A Quick Proof that Eigenvalues of a Real Symmetric Matrix are Real(ai templete Not the content of the notes will be )
A short, self-contained proof using the complex inner product -- a common interview question in linear algebra.