Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
Showing posts with label
math
.
Show all posts
Showing posts with label
math
.
Show all posts
Solving the NYTimes Pips puzzle with a constraint solver
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The New York Times recently introduced a new daily puzzle called Pips . You place a set of dominoes on a grid, satisfying various condition...
6 comments:
The Pentium contains a complicated circuit to multiply by three
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This article is available in German at Heise Online . In 1993, Intel released the high-performance Pentium processor, the start of the long...
17 comments:
Qui-binary arithmetic: how a 1960s IBM mainframe does math
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The IBM 1401 computer uses an unusual technique called qui-binary arithmetic to perform arithmetic. In the early 1960s, the IBM 1401 wa...
3 comments:
Mining Bitcoin with pencil and paper: 0.67 hashes per day
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This article is now available in Japanese: 紙と鉛筆でビットコインをマイニング：1日に0.67ハッシュ and Russian: Майним Bitcoin с помощью бумаги и ручки . I decided...
87 comments:
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