Shawn Ng
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Robotics

2 deep dives tagged Robotics — real systems, real numbers, no hand-waving.

The Rejected Algorithm That Helped Land Us on the Moon

· 8 min read

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.

  • algorithms
  • kalman-filter
  • signal-processing

A* Pathfinding Explained: Why It Beats Dijkstra

· 7 min read

Learn how the A* pathfinding algorithm works, why it outperforms Dijkstra, and see a Python implementation with heuristic functions.

  • algorithms
  • pathfinding
  • a-star

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