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  Math toolkit 21 Jan 15

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  Universal Math Solver 30 Nov 16

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  CrystalMaker 1 Jan 15

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  Euklid DynaGeo 6 May 15

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  Microsoft Calculator Plus 23 Sep 15

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  NeuroXL Package 12 Feb 17

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  DigXY 3 Nov 15

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  The Geometer's Sketchpad 3 May 20