Zeger Hendrikse

TDD, physics, and mathematics

---

Project maintained by zhendrikse Hosted on GitHub Pages — Theme by mattgraham

🔭 I’m always open to discuss parttime jobs (freelance)!

📝 My resume can be downloaded here

👯 I’m currently working on my ✨science & mathematics website✨

🌱 I’m relearning the stuff I did as a student theoretical physics

🤔 I’m looking for help creating more scientific 3D visualizations

💬 Ask me about anything!

📫 How to reach me: zegerh_＠_yahoo_•_co_•_uk

⚡ Fun fact: I love playing the piano 🎹

My portfolio

Test-driven development

I love teaching people more about TDD. Strongly recommended: take a look at my TDD pages section that belongs to my TDD repository, which in turn is packed with dozens of coding kata's.

My coding dojos

   

A typical setting of an online coding dojo.

A typical setting of a coding dojo.

Interactive simulations & visualizations

     

I maintain a site containing countless interactive simulations in physics and mathematics. Some examples are reproduced below.

Solar system

🔧 This solar_system.html uses JavaScript & Three.js
🧠 Newton-Raphson method for realistic (elliptic) orbits
👉 Inspired on solar-system by Luke Kulik, threex.planets by Jemore Etienne, and solarsystem by Dana Wensberg
🔑 Includes tilt, spin and tidal locking of applicable moons e.g. Earth’s moon
🚀 Features advanced techniques for rendering earth clouds & subtle corona breathing driven by magnetic turbulence

Black hole GPU ray tracing

⭐ Based on NASA-BlackHole by Caden Marinozzi
👉 Extended with realistic accretion disk coloring

Falling raindrops

⭐ Inspired by this example from Recreational Mathematics with Python
🔧 Rewritten in JavaScript and three.js by Zeger Hendrikse, see raindrop_waves.js

3D shapes

🔧 This 3D shapes renderer is 100% JavaScript using Three.js.

Equipartition of energy

🔧 This energy_equipartition.html is 100% JavaScript using Three.js.