Gedanken Versichert
WARNING: "Parabola motion" and "Vortex graphics" are not optimized for mobile devices.
Mathetmatics
Primality test - by Botond
Physics
Parabola motion - by Bendegúz & Botond
Newtonian gravity - by Bendegúz
Two-body simulation using Verlet Integration - by Bendegúz & Botond
Programming
Vortex graphics - by Bendegúz
A* algorithm: Maze solver - by Botond