Life & fun · September 20, 2011
repl.it — A client-side web REPL for 15+ languages
Does the same job
all alternatives →- NMNodebook – Multi-Language REPL with Web UI2018 · github.com · ▲16
- NMNodebook – Minimalist Multi-Language REPL with Web UI2018 · github.com · ▲12
- TATonic – A data visualizing REPL for Node.js2015 · tonicdev.com · ▲342
- NMNodebook – Multi-Lang Web REPL on Docker2020 · github.com · ▲82
- CPCommitQ – Programming language-aware Git repository hosting2013 · commitq.com · ▲93

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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:…
Life & fun · 26d ago · baselashraf81.github.io
Launched alongside, September 2011
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