Double pendulum · gemini-3.1-flash-lite
Simulate a chaotic double pendulum on a canvas using the correct equations of motion, drawing the arms and a colorful fading trail of the tip.
transcript · 4 messages
Simulate a chaotic double pendulum on a canvas using the correct equations of motion, drawing the arms and a colorful fading trail of the tip.
thinking
**Simulating Double Pendulum** I'm focusing on rendering the chaotic motion of a double pendulum. The plan is to draw the arms directly onto a canvas element within a single HTML file. I'll also implement a fading trail for the tip's path, ensuring no external dependencies are used. **Calculating Motion Parameters** I've been diving into the equations of motion. My focus is now on implementing these equations in JavaScript, setting up the canvas and styling it, and then developing the animation loop for rendering.
index.html (3834 bytes)Successfully wrote 3834 bytes to index.html
The double pendulum simulation is complete and contained within `index.html`. It uses the coupled equations of motion with numerical integration, drawing both the physical arms and a colorful, fading trail that represents the path of the second mass. You can open `index.html` in any modern web browser to view the simulation.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
EVALUATION
Chaotic double pendulum simulation with colorful fading trails and motion history streaks; no keyboard/mouse interactivity.
Vision grade · anthropic/claude-sonnet-5
MEASUREMENTS
Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.