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a collection of mathematical & algorithmical computation demonstrations, as a new resource for research & education. all applications can be run fully interactively with a free player, while the source code is open & accessible.

this Wolfram demonstrations project includes some impressive data visualization techniques, such as the fully automated graph layout (e.g flow-charting, graph drawing, trees, social network graphics) & exploratory data analysis (e.g. cluster analysis, nearest neighbors).

[link: wolfram.com]

see also worlfram tones & ulam prime spiral & number spiral & symmetrical mathematics.