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New
The latest blog posts to take off on Hacker News. 58 posts.
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Confessions of a Math Idiot
A blog about computers, functional languages, Lisp, and Scheme.
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Visualizing the Fourth Dimension Using Color
Color can be used to indicate position in 4D space
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A Calculus Analogy: Integrals as Multiplication
Integrals are often described as finding the area under a curve. This description is too narrow: it's like saying multiplication exists to find the area of…
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Mastering The Fourier Transform in One Day
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Netflix Prize 10% barrier broken
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Peter Selinger: MD5 Collision Demo
C:\TEMP> md5sum hello.exe cdc47d670159eef60916ca03a9d4a007 C:\TEMP> .\hello.exe Hello, world! (press enter to quit) C:\TEMP>
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A Life that Added Up to Something: Paul Erdos (1996)
WASHINGTON - One of the most extraordinary minds of our time has "left." "Left" is the word Paul Erdos, a prodigiously gifted and productive mathematician, used for "died." "Died" is the word he used to signify "stopped doing math." Erdos never died. He continued doing math, notoriously a young person's field, right…
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PHYS771 Quantum Computing Since Democritus
University of Waterloo, Fall 2006 Tuesdays and Thursdays, 1:00-2:30pm BFG Building, 2nd floor seminar room (BFG2125)
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P.S.: The Best of Intentions
Operations in Lisp, Scheme, and other dynamically-typed languages typically dispatch on representational type information rather than intentional type information. Several broad classes of bugs and confusions can be traced to improper attempts to recover intentional type information from representation types.
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A 3700-year-old proof that the diagonal of a unit square has length √2
Clicking on an image will bring up the same image at higher resolution (a download of about about 100 KB). Clicking on that in turn will download an image of about 300 KB.
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Automatic Differentiation: The most underused tool in the machine learning toolbox?
Update: (November 2015) In the almost seven years since writing this, there has been an explosion of great tools for automatic differentiation and a corresponding upsurge in its use. Thus, happily,…
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A critique of The Black Swan
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The Baby-Eating Aliens
(Part 1 of 8 in "Three Worlds Collide") • This is a story of an impossible outcome, where AI never worked, molecular nanotechnology never worked, bio…
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Why the secret to speedier highways might be closing some roads: the Braess paradox
"All will be well if you use your mind for your decisions, and mind only your decisions." Help me make more videos and posts! A monthly membership directly supports the channel and allows me to make more videos that inspire students and teachers around the world. You also get early access to new videos. Support with a…
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