Notes & essays

Writing

Your Git History Knows What Changes Together

Git history contains valuable clues about how a codebase evolves. Learn how histui and its Pi extension turn repeated file changes into focused, local context for refactoring, debugging, and working with unfamiliar code.

2026-07-20 · 0 min read

Data Representation and Calculation

For m training examples with each example having n features, a m x n dimensional vector can be used for representing the data.

2022-07-14 · 4 min read

Gradient Descent

Gradient descent is an optimization algorithm that we use in machine learning and by optimization, we mean finding the maximum or minimum value of a function and in this case, we are descending to find the minimum value.

2022-01-12 · 3 min read