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Knuth Reward Check

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Hacker News | Oct 10, 2026 | Curiositry

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Donald Knuth confirmed the error I had found in one of his books and sent me the coveted check! Donald Knuth and his reward for any error in one of his books (even typographical ones) are computer science folklore. The very first word. That’s why the Memo field says “E1”: Computer Modern Typefaces is Volume E in the Computers & Typesetting series. A few years later I sent in another proposed error, but I was wrong.

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