Engineer at Mapbox, creator of Leaflet, algorithms geek, open source enthusiast, musician, father of twin girls, Ukrainian. 🇺🇦
When Does the Barbell Tip Over?Kinematics of Reverse Angle Parking3D planets with Three.jsUV-mapping an icosphereFast Icosphere MeshCollatz conjecture (3x + 1)Chroma Key CompositingHilbert Curve PackingDrawing logarithmic spiralsApproximating Geometric SlerpPixelmatch DemoMARTINI: Real-Time RTIN Terrain MeshRobust Arithmetic in Computational Geometry
One-Rep Max Formulas Showdown
rm = ({
'Epley': 1 + r / 30,
'Brzycki': 36 / (37 - r),
'O\'Connor': 1 + r / 40,
'Lombardi': Math.pow(r, 0.1),
'Lander': 1 / (1.013 - 0.0267123 * r),
'Mayhew': 1 / (0.522 + 0.419 * Math.exp(-0.055 * r)),
'Wathen': 1 / (0.488 + 0.538 * Math.exp(-0.075 * r)),
'NSCA Squat': [1.0650, 1.130, 1.1470, 1.164, 1.181, 1.198, 1.232, 1.232, 1.240][r - 2],
'NSCA Bench': [1.0475, 1.130, 1.1575, 1.200, 1.242, 1.284, 1.326, 1.368, 1.410][r - 2],
'NSCA Deadlift': [1.0350, 1.080, 1.1150, 1.150, 1.180, 1.220, 1.255, 1.290, 1.325][r - 2]
})
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.