Shawn NgTopic
Algorithms
8 deep dives tagged Algorithms — real systems, real numbers, no hand-waving.
The Solvers Refuse to Die: Classical Optimization vs the Learned Upstarts
An honest scoreboard of classical optimization solvers versus learning-to-optimize, and the hybrid pattern where ML proposes and exact methods verify.
The 1947 Algorithm That Routes Every Package You've Ever Received
How linear programming and Dantzig's simplex method work, why they still schedule airlines and route packages, with Python code and interior point methods.
The Rejected Algorithm That Helped Land Us on the Moon
How the Kalman filter works, from the predict-update math to Python code, and how a once-rejected algorithm guided Apollo and now runs in every GPS.
A* Pathfinding Explained: Why It Beats Dijkstra
Learn how the A* pathfinding algorithm works, why it outperforms Dijkstra, and see a Python implementation with heuristic functions.
Bellman-Ford Algorithm: How Traders Find Free Money with Graph Theory
How the Bellman-Ford algorithm detects negative cycles in graphs and enables currency arbitrage for finding risk-free profit.
4 Data Structures Every Developer Should Master
The four data structures every developer needs: arrays, hash tables, stacks and queues, and trees, with Python examples and Big-O analysis.
The Hidden Magic of Hash Tables: How Your Computer Finds Anything in an Instant
How hash tables achieve O(1) lookups: hash functions, collision resolution, load factor, and a Python implementation built from scratch.
The Hidden Algorithm That Runs Your Life: Dijkstra's Algorithm Explained
Learn how Dijkstra's shortest-path algorithm works, powers Google Maps and internet routing, and where it breaks down, with a Python implementation.