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The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
This Demonstration shows a random walk using the digits of ? in base 4 as movement commands, starting in the center of the grid. The height at each grid point reflects the number of times the walker landed on that grid point.
Contributed by: Andrew Mattingly
Audio created with WolframTones:
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![](https://s2.save4k.ru/pic/ckZRIgxdf9o/mqdefault.jpg)