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ut in the end?he achieved an impressive score on the final exam?which made me conscious of his unusual determination he demonstrates when confronting difficult challenges. Mr. Wang and I have often talked about a variety of mathematics and puter science concepts and problems. During these discussions?I always found him to be delightfully intelligent. Not only does he quickly understand the concepts and problems presented to him?he is able to analyze these problems and present solutions. But perhaps most important is that Wang’s thinking is intensely rigorous. When looking at any question?he carefully scrutinizes it and if he finds any uncertain issues?he clears them up immediately. I believe this kind of thought is essential to bee an excellent puter programmer. Serving as his thesis advisor?I had a firsthand opportunity to observe the way in which Wang’s mind works. In his senor thesis?Mr. Wang mainly discussed two challenging questions in regar