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Donald Ervin Knuth

Geburtstag: 10. Januar 1938

Donald Ervin „Don“ Knuth [kəˈnuːθ] ist ein US-amerikanischer Informatiker. Er ist emeritierter Professor an der Stanford University, Autor des Standardwerks The Art of Computer Programming und Urheber des Textsatzsystems TeX. Wikipedia

Zitate Donald Ervin Knuth

„E-Mail ist eine wunderbare Sache für Leute, deren Aufgabe im Leben darin besteht, an der Spitze von Dingen zu stehen. Aber nicht für mich; meine Aufgabe besteht darin, am Grund der Dinge zu sein. Was ich tue, benötigt viele Stunden des Studierens und der unterbrechungsfreien Konzentration.“

—  Donald Ervin Knuth

Knuth versus Email
"Email is a wonderful thing for people whose role in life is to be on top of things. But not for me; my role is to be on the bottom of things." - http://www-cs-faculty.stanford.edu/~knuth/email.html

„Das größte Problem ist die Trivialität. Da werden Dinge patentiert, die jeder Student in einer Klausur machen kann.“

—  Donald Ervin Knuth

Technology Review vom 25. November 2005, Seite 2 im Web-Artikel https://www.heise.de/tr/artikel/Freude-die-ein-Maler-empfindet-405241.html

„Man versteht etwas nicht wirklich, wenn man nicht versucht, es zu implementieren.“

—  Donald Ervin Knuth

im Interview bei heise-Artikel (Archive.org) https://web.archive.org/web/20021028062051/http://www.heise.de:80/ct/02/05/190/, c't 5/2002, S. 190

„The real problem is that programmers have spent far too much time worrying about efficiency in the wrong places and at the wrong times; premature optimization is the root of all evil (or at least most of it) in programming.“

—  Donald Ervin Knuth, Literate Programming

Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%.
Variant in Knuth, "Structured Programming with Goto Statements" http://pplab.snu.ac.kr/courses/adv_pl05/papers/p261-knuth.pdf. Computing Surveys 6:4 (December 1974), pp. 261–301, §1.
Knuth refers to this as "Hoare's Dictum" 15 years later in "The Errors of Tex", Software—Practice & Experience 19:7 (July 1989), pp. 607–685. However, the attribution to C. A. R. Hoare is doubtful. http://shreevatsa.wordpress.com/2008/05/16/premature-optimization-is-the-root-of-all-evil/
All three of these papers are reprinted in Knuth, Literate Programming, 1992, Center for the Study of Language and Information ISBN 0937073806
Quelle: Computer Programming as an Art (1974), p. 671

„Random numbers should not be generated with a method chosen at random“

—  Donald Ervin Knuth, buch The Art of Computer Programming

Vol. II, Seminumerical Algorithms
The Art of Computer Programming (1968–2011)

„Science is what we understand well enough to explain to a computer. Art is everything else we do.“

—  Donald Ervin Knuth, Things a Computer Scientist Rarely Talks About

Foreword to the book A=B http://www.cis.upenn.edu/~wilf/AeqB.html (1996)
Quelle: Things a Computer Scientist Rarely Talks About

„An algorithm must be seen to be believed.“

—  Donald Ervin Knuth, buch The Art of Computer Programming

Vol. I, Fundamental Algorithms, Section 1.1 (1968)
The Art of Computer Programming (1968–2011)
Quelle: Leaders in Computing: Changing the digital world

„A good technical writer, trying not to be obvious about it, but says everything twice: formally and informally. Or maybe three times.“

—  Donald Ervin Knuth

AI Podcast, December 30, 2019, Algorithms, Complexity, Life, and The Art of Computer Programming https://www.youtube.com/watch?v=2BdBfsXbST8,

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„The whole thing that makes a mathematician’s life worthwhile is that he gets the grudging admiration of three or four colleagues.“

—  Donald Ervin Knuth

Jack Woehr. An interview with Donald Knuth http://www.drdobbs.com/an-interview-with-donald-knuth/184409858. Dr. Dobb's Journal, pages 16-22 (April 1996)

„The important thing, once you have enough to eat and a nice house, is what you can do for others, what you can contribute to the enterprise as a whole.“

—  Donald Ervin Knuth

Jack Woehr. An interview with Donald Knuth http://www.drdobbs.com/an-interview-with-donald-knuth/184409858. Dr. Dobb's Journal, pages 16-22 (April 1996)

„The reason is not to glorify "bit chasing"; a more fundamental issue is at stake here: Numerical subroutines should deliver results that satisfy simple, useful mathematical laws whenever possible.“

—  Donald Ervin Knuth, buch The Art of Computer Programming

[...] Without any underlying symmetry properties, the job of proving interesting results becomes extremely unpleasant. The enjoyment of one's tools is an essential ingredient of successful work.
Vol. II, Seminumerical Algorithms, Section 4.2.2 part A, final paragraph [Italics in source]
The Art of Computer Programming (1968–2011)

„Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Etiam egestas wisi a erat. Morbi imperdiet, mauris ac auctor dictum.“

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