Let’s demystify this new buzzword: “Quantum Annealing”. Here you will get an overview over Hamiltonian energy functions, binary quadratic models (Ising and QUBO) and the complete workflow for solving problems on a quantum annealer. We will discuss problem reformulation using a penalty term and minor embedding on a concrete example. —

Euler angles can be confusing, especially the order of matrices when we chain multiple rotations by multiplication. This post explains what the difference is between extrinsic & intrinsic sequence of rotations and how to deduce whether you have to multiply from right or left. — Recall: Rotation matrices Let’s quickly recall rotation matrices used to rotate a point in Euclidean space by an angle θ about the x-, y- or z-axis. We deduce the rotation matrix for the x-axis visually. First, consider this coordinate system with a point P living on the yz-plane as depicted below.

Ever connected to a WiFi network in public space? You’ve probably been redirected to a page where you had to agree to the terms of use to gain access to the Internet. This web page is called Captive Portal. You can use your Raspberry Pi and set it up as…