Binomial Theorem’s Insight in a Combinatorics Problem
Published:
An elegant summation that collapses to a surprisingly clean answer once you notice how it mirrors the binomial theorem.
Blog posts
2024
Hello — A Brief Intro
Published:
A snapshot of who I was in my last year of high school, written when I first started this blog.
My First SAT — Test-taking Experience in Macau
Published:
A short travelogue and logistics log from my first SAT, taken at St. Joseph University in Macau. (The original practice-correction screenshots live in my offline study archive and are omitted here.)
2023
Notes on Calculus III — Vector Basics
Published:
My study notes on the vector foundations of Calculus III — length, dot product, cross product, and the inequalities and geometric interpretations that fall out of them.