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Donald Knuth Trivia Questions

How much do you really know about Donald Knuth? Below are 8 true or false statements. Click each one to reveal the answer and explanation.

1.

Knuth offered a reward check for finding errors in his books, and the checks are often framed uncashed as collector's items.

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Easy
✓ TRUE

He mails $2.56 (one hexadecimal dollar) per bug, but many recipients frame them instead of cashing.

2.

Knuth has never used email, preferring to communicate only by postal mail.

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Medium
✓ TRUE

Since 1990, Knuth has avoided email entirely to focus on deep work, replying only via physical letters.

3.

Donald Knuth created the TeX typesetting system because he was frustrated with the quality of his own book proofs.

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Medium
✓ TRUE

Knuth developed TeX in 1978 after being dissatisfied with galley proofs for his "Art of Computer Programming" volume 2.

4.

Knuth once performed a live concert playing the pipe organ to celebrate the release of a new volume of his book series.

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Medium
✗ FALSE

Knuth is an organist, but there is no record of a celebratory concert for a book volume release. He did play for a Stanford event once.

5.

Knuth won the Turing Award for writing the first compiler for a high-level programming language.

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Hard
✗ FALSE

Knuth won the Turing Award in 1974 for contributions to analysis of algorithms, not for a compiler. The first compiler was by Grace Hopper.

6.

Donald Knuth has written a complete novel under a pseudonym.

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Hard
✗ FALSE

Knuth is known for technical writing and a book on surreal numbers, but has never published a novel, pseudonymous or otherwise.

7.

Knuth's first major published paper was on the analysis of sorting algorithms.

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Hard
✓ TRUE

His 1963 paper "An Empirical Study of FORTRAN Programs" analyzed sorting, but his landmark sorting analysis came in his 1973 book.

8.

Knuth invented the 'Big O' notation used in computer science for algorithm analysis.

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Hard
✗ FALSE

Big O notation was introduced by Paul Bachmann in 1894 and popularized by Edmund Landau; Knuth refined its use but didn't invent it.

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