Honghai Gu

Latest Release

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  Arithmetician

  challenging arithmetic puzzle

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iPad & iPhone

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  Arithmetician

  challenging arithmetic puzzle

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  ReadUnbound: Advanced Reader

  Master Words by Reading

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  Recipes123

  Create and share recipes

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  JD Flashcards

  Never stop learning

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  Video Figure: Gesture Drawing

  Extract video frames and draw.

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  Optactic: Option Strategy Tool

  Visualize risks and rewards

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  Battleplanes

  Search and Destroy

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