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  WinStars 28 Apr 18

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  WinADV 28 Apr 18

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  Lunar Calendars and Eclipse Finder 15 Aug 18

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  Root Solver and Calculator 13 Apr 18

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  Solution Calculator 11 Apr 18

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  Phet 12 Apr 18

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  Math Mechanixs 27 Apr 18

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  TeeChart Office 27 Apr 18