binary covering
41Character encoding — Special characters redirects here. For the Wikipedia editor s handbook page, see Help:Special characters. A character encoding system consists of a code that pairs each character from a given repertoire with something else, such as a sequence of… …
42Groupoid — dablink|This article is about groupoids in category theory. For the algebraic structure with a single binary operation see magma (algebra). In mathematics, especially in category theory and homotopy theory, a groupoid is a simultaneous… …
43Lagrangian point — The Lagrangian points (IPA en|ləˈgreɪndʒiən, IPA fr|lagʁɑ̃ʒjɑ̃; also Lagrange point, L point, or libration point), are the five positions in an orbital configuration where a small object affected only by gravity can theoretically be stationary… …
44Ivar Kreuger — Match King redirects here. For the 1932 film about Kreuger, see The Match King. Ivar Kreuger Ivar Kreuger c. 1920 Born March 2, 1880(1880 03 02) Kalmar, Sweden …
45Reverse mathematics — is a program in mathematical logic that seeks to determine which axioms are required to prove theorems of mathematics. The method can briefly be described as going backwards from the theorems to the axioms. This contrasts with the ordinary… …
46Linear code — In mathematics and information theory, a linear code is an important type of block code used in error correction and detection schemes. Linear codes allow for more efficient encoding and decoding algorithms than other codes (cf. syndrome… …
47CIA transnational activities in counterproliferation — This article deals with activities of the U.S. Central Intelligence Agency, specifically dealing with arms control, weapons of mass destruction (WMD) and weapons proliferation. It attempts to look at the process of tasking and analyzing, rather… …
48printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …
49number game — Introduction any of various puzzles and games that involve aspects of mathematics. Mathematical recreations comprise puzzles and games that vary from naive amusements to sophisticated problems, some of which have never been solved.… …
50tz database — The tz database, also called the zoneinfo database or IANA Time Zone Database, is a collaborative compilation of information about the world s time zones, primarily intended for use with computer programs and operating systems.[1] It is sometimes …
