Wrote a systemd service to automatically shut down a machine if no one logs in within a certain time after boot.

Implemented the elbow method in C++ to estimate the number of clusters for k-means and verified its behavior.

Implemented k-means++, an improved version of the k-means algorithm, in C++ and verified its behavior.

Explored the behavior of k-means, perhaps the most well-known clustering algorithm, by implementing it in C++.

#pragma once is non-standard, but it has an advantage. It’s OK to use this.

This article discusses the general theory of self-reciprocal functions in the Fourier transform, particularly focusing on the eigenspaces of the Fourier transform.

An overview of Gray code.

As an example of a self-reciprocal function in the Fourier transform, we introduce |t|^(-1/2).

Basic concepts of the Mellin transform.

On the pursuit of truth and the importance of making concepts understandable to others.