Posts

A Note on Catalan Number
A small note recording learning process.
Last updated on Mar 9, 2026 3 min read
Finding Maximum and Range: Two Exercises
Solving math problems using M365 Copilot.
Last updated on Feb 27, 2026 7 min read
Finding Integer Points on a Circle
Small mathematical experiment
Last updated on Mar 10, 2026 2 min read
Problem Solving: Using Math and Brute Force
An interesting elementary math problem
Last updated on Jan 30, 2026 2 min read
Using data.table to Do Math: a Tiny Example
An exercise of using data.table
Last updated on Jan 22, 2026 1 min read
A Note on Spread of Multivariate Distriution
a small note — odds and ends
Last updated on Jan 13, 2026 2 min read
A Probability Puzzle
A small simulation study
Last updated on Sep 1, 2025 2 min read
Finding Triangles
R programming exercise
Last updated on Aug 21, 2025 2 min read
A Note on Circumradius
The law of sines, Heron’s formula
Last updated on Jan 23, 2026 1 min read
Two High School Math Problems
Heron formula and triangle inequality
Last updated on Jan 23, 2026 2 min read