Life & fun · December 17, 2014

Squire
The <textarea> of the future. A HTML5 rich text editor.
Does the same job
all alternatives →
- WAWideArea – an expandable textarea2013 · usablica.github.io · ▲192
- AIAn in-browser text editor to easily create static HTML2022 · triplelog.com · ▲140

- IAIota – a text editor written in Rust2014 · github.com · ▲221
- SIScratchpad.io - a real-time HTML and CSS editor2012 · scratchpad.io · ▲298
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Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
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