Audio visualization on LEDs: perceptual models and mathematics https://sudonull.com/audio-visualization-on-leds-perceptual-models-and-mathematics
How mel scale and convolutions solve the pixel poverty problem in audio visualization. Technical details of implementation for embedded systems. Learn the key algorithms.
Sankey Diagrams: Flow Analysis in an Hour https://sudonull.com/sankey-diagrams-flow-analysis-in-an-hour
Create an interactive Sankey on D3.js for financial data. From PDF to visualization: structure, tooltips, mobile version. Instructions for middle/senior dev.
Bubble Charts: Overlap, Color, Dynamics https://sudonull.com/bubble-charts-overlap-color-dynamics
Learn how to eliminate bubble overlap, implement color coding and timeline in bubble chart. Practical techniques for business visualizations. Create effective dashboards.
Quirk quantum circuits simulator: guide for developers https://sudonull.com/quirk-quantum-circuits-simulator-guide-for-developers
Master Quirk for simulating quantum circuits in the browser. Real-time visualization of gates, QFT, Grover. Interface, examples, limitations — full breakdown for middle/senior IT specialists. Start experiments without installation.
FEM Accuracy: Comparison of SCAD++, Lira, and ammonit3d https://sudonull.com/fem-accuracy-comparison-of-scad-lira-and-ammonit3d
Comparison of SCAD++, Lira, and ammonit3d accuracy on a test with one finite element. Learn how the cloud solution combines analytical accuracy and modern visualization.