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  Math toolkit 21 Jan 15

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  Graphing Calculator 3D 8 Mar 17

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  Simple Grapher Plus 7 Apr 16

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  Graph Plotter 20 Jan 15

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  Visual Probability 31 Dec 14

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  MaxStat Pro 19 Feb 15

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  The Geometer's Sketchpad 3 May 20

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  Python Spirograph 16 Apr 15