Newton-Euler dynamics, motor mixing and RK4 integration, the complete physics loop inside my quadrotor simulator, taught from scratch.

Climbing the number ladder from real numbers to complex numbers to quaternions, and why 3D rotation needs a 4D number system.

A beginner intro to world and body frames, why drones need both, and where this shows up in my quadrotor simulator.

Step-by-step guide to implement a simple Unix-like shell in C.