The Damped Harmonic Oscillator

A hello-world note: prose, math, and one interactive island.

This is a plain note. Everything you’re reading is ordinary Markdown.

When you want math, write it inline like E=mc2E = mc^2, or as a block:

mx¨+cx˙+kx=0m\,\ddot{x} + c\,\dot{x} + k\,x = 0

Now an interactive widget that breaks out wider than the text and sits centered in its box. Drag the slider.

The text snaps back to readable width. You never computed a margin — the grid holds the center; the widget just declared class="wide".