Henry W. Chang

Personal academic homepage – notes, experiments, and ideas.

About

I am an undergraduate student in a dual-degree program between Peter the Great St. Petersburg Polytechnic University (SPbPU) and Xi’an Technological University (XATU). At SPbPU, I study Electrical Power and Electrical Engineering. At XATU, my major is Automation with a focus on Control Science and Engineering. My main interests are mathematics, control systems, and artificial intelligence. This site contains my study notes, technical summaries, and research ideas.

Research / Projects

Custom Vocabulary Builder Python Web App
A personalized vocabulary learning tool built with Python data automation and interactive frontend.
Inverted pendulum control experiments control simulation
Short description…（some exp projects/pendulum.html）
AI + decentralized systems sketch AI distributed
Short description…

Notes

Here I collect more formal notes (PDF or HTML) on math, physics, etc.

Calculus notes – limits and derivatives (HTML)
Probability & statistics quick cheatsheet (PDF)

Example inline formula rendered by MathJax: When $x \\to 0$, we have $\\displaystyle \\frac{\\sin x}{x} \\to 1$.

My Lifestyle

Freedom is all I yearn for, and now the path ahead draws me nearer to its whispering gate.

Let's go west meta

Contact

Email: hengrui0213@outlook.com
GitHub: HenryWChang