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  MathGrapher 31 Dec 14

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  SigmaGraph 10 Jan 17

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  X-Graph 27 Jan 15

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  fx-Calc 19 Jun 16

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  CompactCalc 11 Jul 17

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  Universal Math Solver 30 Nov 16

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  TeraPlot 22 Jan 15

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  Optical Character Recognition System 11 Apr 15