Observed arrival · 2026-09-26
Wonderlattice’s two-arm drawing machine
A free browser-based math playground lets you adjust turning arms to draw evolving curves, explore the ideas behind them, and save an image.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Curious learners who like experimenting with mathematical patterns
- Worth noticing
- A suggested −5 to −5.1 speed change shows how a tiny adjustment can produce a dramatically different curve.
Field notes
The first playground exposes the moving arms and gives controls for speed, direction, reach, and starting angle. Its explanation defines the curve with equations, distinguishes rational from irrational speed ratios, and offers named patterns such as “Almost a circle” and “Trace it all.”
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue