Technical Directory

Tech Insights & Engineering Articles

Explore technical articles, software architecture deep dives, clean code tutorials, and computer science explorations from my journey.

Rank: When More Numbers Don’t Mean More Understanding

Rank: When More Numbers Don’t Mean More Understanding

When I first encountered matrices, I assumed that adding more rows or columns automatically made a system richer. More d…

Arun Pandian M
Dec 26, 2025
3 min read
Memoization: When Remembering Is Smarter Than Recomputing

Memoization: When Remembering Is Smarter Than Recomputing

At some point in every developer’s journey, you notice a familiar pain: the **same computation** is being done **again…*…

Arun Pandian M
Dec 24, 2025
5 min read
Why Adding More Rows Doesn’t Always Add More Understanding

Why Adding More Rows Doesn’t Always Add More Understanding

Different questions don’t always mean different answers.

Arun Pandian M
Dec 18, 2025
4 min read
Detecting Cycles & Repeats: Fast & Slow Pointer Pattern

Detecting Cycles & Repeats: Fast & Slow Pointer Pattern

If you’ve ever watched two runners on a track, one sprinting and the other jogging, you know that sometimes the faster r…

Arun Pandian M
Nov 18, 2025
3 min read
Types & Functions — The Real Building Blocks of Programs

Types & Functions — The Real Building Blocks of Programs

Types tell you what something is. Functions tell you what it can do.

Arun Pandian M
Nov 17, 2025
5 min read
The Converging Pointer Pattern: Efficient Pair Searching in Arrays

The Converging Pointer Pattern: Efficient Pair Searching in Arrays

Imagine you’re at a bustling farmers’ market, and you want to pick two fruits whose combined price exactly matches your …

Arun Pandian M
Nov 16, 2025
5 min read
The Two Pointer Pattern — Two Explorers, One Goal

The Two Pointer Pattern — Two Explorers, One Goal

Have you ever seen two detectives chasing the same suspect from different directions?

Arun Pandian M
Nov 9, 2025
3 min read
The Power of Composition: Building Big from Small

The Power of Composition: Building Big from Small

It’s not the pieces themselves that make something great — it’s how you put them together.” — Anonymous (and every LEGO …

Arun Pandian M
Nov 8, 2025
4 min read
The Hidden Geometry of Data — Understanding Column Space

The Hidden Geometry of Data — Understanding Column Space

When we learn linear algebra in school, we usually stop at plugging numbers into formulas.

Arun Pandian M
Nov 3, 2025
4 min read