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4D Polytopes & Tesseract

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Jude - Fractal Explorer

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Loughborough Wave Lab

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4D Toys

Mindbending 4D physics objects

FractalEcho

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Mandel Draw

Intuitive Fractal Drawing App

Mandel-GL

Education

NKS Explorer 2022

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PiBase: Topology

Topological Database (Maths)