The Continuity Equation

Deriving the continuity equation step by step, from conservation laws to the divergence theorem.

Date: June 17, 2025  |  Estimated Reading Time: 7 min  |  Author: Hanbin Zheng

LC-3 Brief Review

A review of LC-3 assembly, the run-time stack, recursion, linked lists, and binary trees, built around one complete program.

Date: May 26, 2025  |  Estimated Reading Time: 12 min  |  Author: Hanbin Zheng

The Gaussian Integral

From the one-dimensional Gaussian integral to the multivariate case, with a probabilistic and linear-algebraic view.

Date: May 19, 2025  |  Estimated Reading Time: 6 min  |  Author: Hanbin Zheng

The Central Limit Theorem

A short proof of the Lindeberg–Lévy central limit theorem using characteristic functions.

Date: May 15, 2025  |  Estimated Reading Time: 5 min  |  Author: Hanbin Zheng