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https://en.wikipedia.org/wiki/MAI%20Systems%20Corp.%20v.%20Peak%20Computer%2C%20Inc. | MAI Systems Corp. v. Peak Computer, Inc., 991 F.2d 511 (9th Cir. 1993), was a case heard by the United States Court of Appeals for the Ninth Circuit which addressed the issue of whether the loading of software programs into random-access memory (RAM) by a computer repair technician during maintenance constituted an una... |
https://en.wikipedia.org/wiki/Anyonic%20Lie%20algebra | In mathematics, an anyonic Lie algebra is a U(1) graded vector space over equipped with a bilinear operator and linear maps (some authors use ) and such that , satisfying following axioms:
for pure graded elements X, Y, and Z.
References
Vector spaces
Lie algebras |
https://en.wikipedia.org/wiki/Stellarium%20%28software%29 | Stellarium is a free and open-source planetarium, licensed under the terms of the GNU General Public License version 2, available for Linux, Windows, and macOS. A port of Stellarium called Stellarium Mobile is available for Android, iOS, and Symbian as a paid version, being developed by Noctua Software. These have a li... |
https://en.wikipedia.org/wiki/Loadable%20kernel%20module | In computing, a loadable kernel module (LKM) is an object file that contains code to extend the running kernel, or so-called base kernel, of an operating system. LKMs are typically used to add support for new hardware (as device drivers) and/or filesystems, or for adding system calls. When the functionality provided by... |
https://en.wikipedia.org/wiki/Locale%20%28computer%20software%29 | In computing, a locale is a set of parameters that defines the user's language, region and any special variant preferences that the user wants to see in their user interface. Usually a locale identifier consists of at least a language code and a country/region code.
Locale is an important aspect of i18n.
General local... |
https://en.wikipedia.org/wiki/Real%20tree | In mathematics, real trees (also called -trees) are a class of metric spaces generalising simplicial trees. They arise naturally in many mathematical contexts, in particular geometric group theory and probability theory. They are also the simplest examples of Gromov hyperbolic spaces.
Definition and examples
Formal d... |
https://en.wikipedia.org/wiki/Polyvinylidene%20fluoride | Polyvinylidene fluoride or polyvinylidene difluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. Its chemical formula is (C2H2F2)n.
PVDF is a specialty plastic used in applications requiring the highest purity, as well as resistance to solvents, ... |
https://en.wikipedia.org/wiki/Weierstrass%20preparation%20theorem | In mathematics, the Weierstrass preparation theorem is a tool for dealing with analytic functions of several complex variables, at a given point P. It states that such a function is, up to multiplication by a function not zero at P, a polynomial in one fixed variable z, which is monic, and whose coefficients of lower d... |
https://en.wikipedia.org/wiki/Radical%20of%20a%20ring | In ring theory, a branch of mathematics, a radical of a ring is an ideal of "not-good" elements of the ring.
The first example of a radical was the nilradical introduced by , based on a suggestion of . In the next few years several other radicals were discovered, of which the most important example is the Jacobson rad... |
https://en.wikipedia.org/wiki/Long-term%20potentiation | In neuroscience, long-term potentiation (LTP) is a persistent strengthening of synapses based on recent patterns of activity. These are patterns of synaptic activity that produce a long-lasting increase in signal transmission between two neurons. The opposite of LTP is long-term depression, which produces a long-lastin... |
https://en.wikipedia.org/wiki/Tensor%20product%20of%20algebras | In mathematics, the tensor product of two algebras over a commutative ring R is also an R-algebra. This gives the tensor product of algebras. When the ring is a field, the most common application of such products is to describe the product of algebra representations.
Definition
Let R be a commutative ring and let A an... |
https://en.wikipedia.org/wiki/Opposite%20category | In category theory, a branch of mathematics, the opposite category or dual category Cop of a given category C is formed by reversing the morphisms, i.e. interchanging the source and target of each morphism. Doing the reversal twice yields the original category, so the opposite of an opposite category is the original ca... |
https://en.wikipedia.org/wiki/Production%20equipment%20control | Production equipment control involves production equipment that resides in the shop floor of a manufacturing company and its purpose is to produce goods of a wanted quality when provided with production resources of a required quality. In modern production lines the production equipment is fully automated using industr... |
https://en.wikipedia.org/wiki/Thioester | In organic chemistry, thioesters are organosulfur compounds with the molecular structure . They are analogous to carboxylate esters () with the sulfur in the thioester replacing oxygen in the carboxylate ester, as implied by the thio- prefix. They are the product of esterification of a carboxylic acid () with a thiol ... |
https://en.wikipedia.org/wiki/Grothendieck%27s%20Galois%20theory | In mathematics, Grothendieck's Galois theory is an abstract approach to the Galois theory of fields, developed around 1960 to provide a way to study the fundamental group of algebraic topology in the setting of algebraic geometry. It provides, in the classical setting of field theory, an alternative perspective to that... |
https://en.wikipedia.org/wiki/Video%20game%20industry | The video game industry is the tertiary and quaternary sectors of the entertainment industry that specialize in the development, marketing, distribution, monetization and consumer feedback of video games. The industry encompasses dozens of job disciplines and thousands of jobs worldwide.
The video game industry has gr... |
https://en.wikipedia.org/wiki/Schur%20decomposition | In the mathematical discipline of linear algebra, the Schur decomposition or Schur triangulation, named after Issai Schur, is a matrix decomposition. It allows one to write an arbitrary complex square matrix as unitarily equivalent to an upper triangular matrix whose diagonal elements are the eigenvalues of the origina... |
https://en.wikipedia.org/wiki/Credit%20risk | Credit risk is the possibility of losing a lender holds due to a risk of default on a debt that may arise from a borrower failing to make required payments. In the first resort, the risk is that of the lender and includes lost principal and interest, disruption to cash flows, and increased collection costs. The loss ma... |
https://en.wikipedia.org/wiki/Optical%20engineering | Optical engineering is the field of science and engineering encompassing the physical phenomena and technologies associated with the generation, transmission, manipulation, detection, and utilization of light. Optical engineers use optics to solve problems and to design and build devices that make light do something u... |
https://en.wikipedia.org/wiki/Schur%20complement | In linear algebra and the theory of matrices, the Schur complement of a block matrix is defined as follows.
Suppose p, q are nonnegative integers, and suppose A, B, C, D are respectively p × p, p × q, q × p, and q × q matrices of complex numbers. Let
so that M is a (p + q) × (p + q) matrix.
If D is invertible, then ... |
https://en.wikipedia.org/wiki/Pathological%20%28mathematics%29 | In mathematics, when a mathematical phenomenon runs counter to some intuition, then the phenomenon is sometimes called pathological. On the other hand, if a phenomenon does not run counter to intuition,
it is sometimes called well-behaved. These terms are sometimes useful in mathematical research and teaching, but the... |
https://en.wikipedia.org/wiki/Polynomial%20ring | In mathematics, especially in the field of algebra, a polynomial ring or polynomial algebra is a ring (which is also a commutative algebra) formed from the set of polynomials in one or more indeterminates (traditionally also called variables) with coefficients in another ring, often a field.
Often, the term "polynomia... |
https://en.wikipedia.org/wiki/Equinumerosity | In mathematics, two sets or classes A and B are equinumerous if there exists a one-to-one correspondence (or bijection) between them, that is, if there exists a function from A to B such that for every element y of B, there is exactly one element x of A with f(x) = y. Equinumerous sets are said to have the same cardina... |
https://en.wikipedia.org/wiki/Limit%20ordinal | In set theory, a limit ordinal is an ordinal number that is neither zero nor a successor ordinal. Alternatively, an ordinal λ is a limit ordinal if there is an ordinal less than λ, and whenever β is an ordinal less than λ, then there exists an ordinal γ such that β < γ < λ. Every ordinal number is either zero, or a suc... |
https://en.wikipedia.org/wiki/Cardinal%20assignment | In set theory, the concept of cardinality is significantly developable without recourse to actually defining cardinal numbers as objects in the theory itself (this is in fact a viewpoint taken by Frege; Frege cardinals are basically equivalence classes on the entire universe of sets, by equinumerosity). The concepts ar... |
https://en.wikipedia.org/wiki/Von%20Neumann%20cardinal%20assignment | The von Neumann cardinal assignment is a cardinal assignment that uses ordinal numbers. For a well-orderable set U, we define its cardinal number to be the smallest ordinal number equinumerous to U, using the von Neumann definition of an ordinal number. More precisely:
where ON is the class of ordinals. This ordinal ... |
https://en.wikipedia.org/wiki/Kahan%20summation%20algorithm | In numerical analysis, the Kahan summation algorithm, also known as compensated summation, significantly reduces the numerical error in the total obtained by adding a sequence of finite-precision floating-point numbers, compared to the obvious approach. This is done by keeping a separate running compensation (a variabl... |
https://en.wikipedia.org/wiki/Copley%20Medal | The Copley Medal is the most prestigious award of the Royal Society, conferred "for sustained, outstanding achievements in any field of science". It alternates between the physical sciences or mathematics and the biological sciences. Given annually, the medal is the oldest Royal Society medal awarded and the oldest sur... |
https://en.wikipedia.org/wiki/Lie%20group%20decomposition | In mathematics, Lie group decompositions are used to analyse the structure of Lie groups and associated objects, by showing how they are built up out of subgroups. They are essential technical tools in the representation theory of Lie groups and Lie algebras; they can also be used to study the algebraic topology of suc... |
https://en.wikipedia.org/wiki/Language%20of%20mathematics | The language of mathematics or mathematical language is an extension of the natural language (for example English) that is used in mathematics and in science for expressing results (scientific laws, theorems, proofs, logical deductions, etc) with concision, precision and unambiguity.
Features
The main features of the ... |
https://en.wikipedia.org/wiki/Galactic%20Center | The Galactic Center is the rotational center, the barycenter, of the Milky Way galaxy. Its central massive object is a supermassive black hole of about 4 million solar masses, which is called Sagittarius A*, a compact radio source which is almost exactly at the galactic rotational center. The Galactic Center is approxi... |
https://en.wikipedia.org/wiki/Supergalactic%20coordinate%20system | The supergalactic plane is part of a reference frame for the supercluster of galaxies that contains the Milky Way galaxy.
The supergalactic plane, as so-far observed, is more or less perpendicular to the plane of the Milky Way; the angle is 84.5°. As viewed from Earth, the plane traces a great circle across the sky th... |
https://en.wikipedia.org/wiki/User-mode%20Linux | User-mode Linux (UML) is a virtualization system for the Linux operating system based on an architectural port of the Linux kernel to its own system call interface, which enables multiple virtual Linux kernel-based operating systems (known as guests) to run as an application within a normal Linux system (known as the h... |
https://en.wikipedia.org/wiki/Grassmannian | In mathematics, the Grassmannian is a differentiable manifold that parameterizes the set of all -dimensional linear subspaces of an -dimensional vector space over a field .
For example, the Grassmannian is the space of lines through the origin in , so it is the same as the projective space of one dimension lower ... |
https://en.wikipedia.org/wiki/Video%20tape%20recorder | A video tape recorder (VTR) is a tape recorder designed to record and playback video and audio material from magnetic tape. The early VTRs were open-reel devices that record on individual reels of 2-inch-wide (5.08 cm) tape. They were used in television studios, serving as a replacement for motion picture film stock an... |
https://en.wikipedia.org/wiki/Law%20of%20trichotomy | In mathematics, the law of trichotomy states that every real number is either positive, negative, or zero.
More generally, a binary relation R on a set X is trichotomous if for all x and y in X, exactly one of xRy, yRx and x=y holds. Writing R as <, this is stated in formal logic as:
Properties
A relation is tricho... |
https://en.wikipedia.org/wiki/Stuffing | Stuffing, filling, or dressing is an edible mixture, often composed of herbs and a starch such as bread, used to fill a cavity in the preparation of another food item. Many foods may be stuffed, including poultry, seafood, and vegetables. As a cooking technique stuffing helps retain moisture, while the mixture itself... |
https://en.wikipedia.org/wiki/Limit%20cardinal | In mathematics, limit cardinals are certain cardinal numbers. A cardinal number λ is a weak limit cardinal if λ is neither a successor cardinal nor zero. This means that one cannot "reach" λ from another cardinal by repeated successor operations. These cardinals are sometimes called simply "limit cardinals" when the c... |
https://en.wikipedia.org/wiki/Regular%20cardinal | In set theory, a regular cardinal is a cardinal number that is equal to its own cofinality. More explicitly, this means that is a regular cardinal if and only if every unbounded subset has cardinality . Infinite well-ordered cardinals that are not regular are called singular cardinals. Finite cardinal numbers are ... |
https://en.wikipedia.org/wiki/Piano%20roll | A piano roll is a music storage medium used to operate a player piano, piano player or reproducing piano. Piano rolls, like other music rolls, are continuous rolls of paper with holes punched into them. These perforations represent note control data. The roll moves over a reading system known as a tracker bar; the play... |
https://en.wikipedia.org/wiki/Inverse%20trigonometric%20functions | In mathematics, the inverse trigonometric functions (occasionally also called arcus functions, antitrigonometric functions or cyclometric functions) are the inverse functions of the trigonometric functions (with suitably restricted domains). Specifically, they are the inverses of the sine, cosine, tangent, cotangent, s... |
https://en.wikipedia.org/wiki/Triangular%20matrix | In mathematics, a triangular matrix is a special kind of square matrix. A square matrix is called if all the entries above the main diagonal are zero. Similarly, a square matrix is called if all the entries below the main diagonal are zero.
Because matrix equations with triangular matrices are easier to solve, they... |
https://en.wikipedia.org/wiki/Mobile%20processor | A mobile processor is a microprocessor designed for mobile devices such as laptops, and cell phones.
A CPU chip is designed for portable computers to run fanless, under 10 to 15W, which is cool enough without a fan. It is typically housed in a smaller chip package, but more importantly, in order to run cooler, it uses... |
https://en.wikipedia.org/wiki/Emanuel%20Sperner | Emanuel Sperner (9 December 1905 – 31 January 1980) was a German mathematician, best known for two theorems. He was born in Waltdorf (near Neiße, Upper Silesia, now Nysa, Poland), and died in Sulzburg-Laufen, West Germany. He was a student at Carolinum in Nysa and then Hamburg University where his advisor was Wilhelm B... |
https://en.wikipedia.org/wiki/Nipkow%20disk | A Nipkow disk (sometimes Anglicized as Nipkov disk; patented in 1884), also known as scanning disk, is a mechanical, rotating, geometrically operating image scanning device, patented by Paul Gottlieb Nipkow in Berlin. This scanning disk was a fundamental component in mechanical television, and thus the first television... |
https://en.wikipedia.org/wiki/Virtual%20function | In object-oriented programming, in languages such as C++, and Object Pascal, a virtual function or virtual method is an inheritable and overridable function or method for which dynamic dispatch is facilitated. This concept is an important part of the (runtime) polymorphism portion of object-oriented programming (OOP). ... |
https://en.wikipedia.org/wiki/Typing%20rule | In type theory, a typing rule is an inference rule that describes how a type system assigns a type to a syntactic construction. These rules may be applied by the type system to determine if a program is well-typed and what type expressions have. A prototypical example of the use of typing rules is in defining type inf... |
https://en.wikipedia.org/wiki/Acetobacter | Acetobacter is a genus of acetic acid bacteria. Acetic acid bacteria are characterized by the ability to convert ethanol to acetic acid in the presence of oxygen. Of these, the genus Acetobacter is distinguished by the ability to oxidize lactate and acetate into carbon dioxide and water. Bacteria of the genus Acetobact... |
https://en.wikipedia.org/wiki/Trigonometric%20substitution | In mathematics, trigonometric substitution is the replacement of trigonometric functions for other expressions. In calculus, trigonometric substitution is a technique for evaluating integrals. Moreover, one may use the trigonometric identities to simplify certain integrals containing radical expressions. Like other met... |
https://en.wikipedia.org/wiki/Othala | Othala (), also known as ēðel and odal, is a rune that represents the o and œ phonemes in the Elder Futhark and the Anglo-Saxon Futhorc writing systems respectively. Its name is derived from the reconstructed Proto-Germanic *ōþala- "heritage; inheritance, inherited estate". As it does not occur in Younger Futhark, it d... |
https://en.wikipedia.org/wiki/Successor%20cardinal | In set theory, one can define a successor operation on cardinal numbers in a similar way to the successor operation on the ordinal numbers. The cardinal successor coincides with the ordinal successor for finite cardinals, but in the infinite case they diverge because every infinite ordinal and its successor have the sa... |
https://en.wikipedia.org/wiki/Successor%20ordinal | In set theory, the successor of an ordinal number α is the smallest ordinal number greater than α. An ordinal number that is a successor is called a successor ordinal. The ordinals 1, 2, and 3 are the first three successor ordinals and the ordinals ω+1, ω+2 and ω+3 are the first three infinite successor ordinals.
Pro... |
https://en.wikipedia.org/wiki/Colorimetry | Colorimetry is "the science and technology used to quantify and describe physically the human color perception".
It is similar to spectrophotometry, but is distinguished by its interest in reducing spectra to the physical correlates of color perception, most often the CIE 1931 XYZ color space tristimulus values and rel... |
https://en.wikipedia.org/wiki/Mereology | In logic, philosophy and related fields, mereology ( (root: , mere-, 'part') and the suffix -logy, 'study, discussion, science') is the study of parts and the wholes they form. Whereas set theory is founded on the membership relation between a set and its elements, mereology emphasizes the meronomic relation between e... |
https://en.wikipedia.org/wiki/Computer%20simulation | Computer simulation is the process of mathematical modelling, performed on a computer, which is designed to predict the behaviour of, or the outcome of, a real-world or physical system. The reliability of some mathematical models can be determined by comparing their results to the real-world outcomes they aim to predic... |
https://en.wikipedia.org/wiki/Am486 | The Am486 is a 80486-class family of computer processors that was produced by AMD in the 1990s. Intel beat AMD to market by nearly four years, but AMD priced its 40 MHz 486 at or below Intel's price for a 33 MHz chip, offering about 20% better performance for the same price.
While competing 486 chips, such as those fr... |
https://en.wikipedia.org/wiki/Halt%20and%20Catch%20Fire%20%28computing%29 | In computer engineering, Halt and Catch Fire, known by the assembly mnemonic HCF, is an idiom referring to a computer machine code instruction that causes the computer's central processing unit (CPU) to cease meaningful operation, typically requiring a restart of the computer. It originally referred to a fictitious ins... |
https://en.wikipedia.org/wiki/Bus%20contention | Bus contention is an undesirable state in computer design where more than one device on a bus attempts to place values on it at the same time.
Bus contention is the kind of telecommunication contention that occurs when all communicating devices communicate directly with each other through a single shared channel, a... |
https://en.wikipedia.org/wiki/ICAO%20airport%20code | The ICAO airport code or location indicator is a four-letter code designating aerodromes around the world. These codes, as defined by the International Civil Aviation Organization and published quarterly in ICAO Document 7910: Location Indicators, are used by air traffic control and airline operations such as flight pl... |
https://en.wikipedia.org/wiki/Truncated%20dodecahedron | In geometry, the truncated dodecahedron is an Archimedean solid. It has 12 regular decagonal faces, 20 regular triangular faces, 60 vertices and 90 edges.
Geometric relations
This polyhedron can be formed from a regular dodecahedron by truncating (cutting off) the corners so the pentagon faces become decagons and the ... |
https://en.wikipedia.org/wiki/Pixel%20geometry | The components of the pixels (primary colors red, green and blue) in an image sensor or display can be ordered in different patterns, called pixel geometry.
The geometric arrangement of the primary colors within a pixel varies depending on usage (see figure 1). In monitors, such as LCDs or CRTs, that typically display... |
https://en.wikipedia.org/wiki/Royal%20Signals%20and%20Radar%20Establishment | The Royal Signals and Radar Establishment (RSRE) was a scientific research establishment within the Ministry of Defence (MoD) of the United Kingdom. It was located primarily at Malvern in Worcestershire, England. The RSRE motto was Ubique Sentio (Latin for "I sense everywhere").
History
RSRE was formed in 1976 by an... |
https://en.wikipedia.org/wiki/Flex%20machine | The Flex Computer System was developed by Michael Foster and Ian Currie of Royal Signals and Radar Establishment (RSRE) in Malvern, England, during the late 1970s and 1980s. It used a tagged storage scheme to implement a capability architecture, and was designed for the safe and efficient implementation of strongly typ... |
https://en.wikipedia.org/wiki/Balanced%20ternary | Balanced ternary is a ternary numeral system (i.e. base 3 with three digits) that uses a balanced signed-digit representation of the integers in which the digits have the values −1, 0, and 1. This stands in contrast to the standard (unbalanced) ternary system, in which digits have values 0, 1 and 2.
The balanced terna... |
https://en.wikipedia.org/wiki/DESQview | DESQview (DV) is a text mode multitasking operating environment developed by Quarterdeck Office Systems which enjoyed modest popularity in the late 1980s and early 1990s. Running on top of DOS, it allows users to run multiple programs concurrently in multiple windows.
Desq
Quarterdeck's predecessor to DESQview was a... |
https://en.wikipedia.org/wiki/Flex%20%28lexical%20analyser%20generator%29 | Flex (fast lexical analyzer generator) is a free and open-source software alternative to lex.
It is a computer program that generates lexical analyzers (also known as "scanners" or "lexers").
It is frequently used as the lex implementation together with Berkeley Yacc parser generator on BSD-derived operating systems (... |
https://en.wikipedia.org/wiki/Shim%20%28computing%29 | In computer programming, a shim is a library that transparently intercepts API calls and changes the arguments passed, handles the operation itself or redirects the operation elsewhere. Shims can be used to support an old API in a newer environment, or a new API in an older environment. Shims can also be used for runni... |
https://en.wikipedia.org/wiki/Critical%20phenomena | In physics, critical phenomena is the collective name associated with the
physics of critical points. Most of them stem from the divergence of the
correlation length, but also the dynamics slows down. Critical phenomena include scaling relations among different quantities, power-law divergences of some quantities (suc... |
https://en.wikipedia.org/wiki/Cleavage%20furrow | In cell biology, the cleavage furrow is the indentation of the cell's surface that begins the progression of cleavage, by which animal and some algal cells undergo cytokinesis, the final splitting of the membrane, in the process of cell division. The same proteins responsible for muscle contraction, actin and myosin, b... |
https://en.wikipedia.org/wiki/Power%20of%20two | A power of two is a number of the form where is an integer, that is, the result of exponentiation with number two as the base and integer as the exponent.
In a context where only integers are considered, is restricted to non-negative values, so there are 1, 2, and 2 multiplied by itself a certain number of times.
... |
https://en.wikipedia.org/wiki/Online%20service%20provider%20law | Online service provider law is a summary and case law tracking page for laws, legal decisions and issues relating to online service providers (OSPs), like the Wikipedia and Internet service providers, from the viewpoint of an OSP considering its liability and customer service issues. See Cyber law for broader coverage ... |
https://en.wikipedia.org/wiki/Wireless%20Internet%20service%20provider | A wireless Internet service provider (WISP) is an Internet service provider with a network based on wireless networking. Technology may include commonplace Wi-Fi wireless mesh networking, or proprietary equipment designed to operate over open 900 MHz, 2.4 GHz, 4.9, 5, 24, and 60 GHz bands or licensed frequencies in the... |
https://en.wikipedia.org/wiki/Interactive%20television | Interactive television is a form of media convergence, adding data services to traditional television technology. It has included on-demand delivery of content, online shopping, and viewer polls. Interactive TV is an example of how new information technology can be integrated vertically into established technologies an... |
https://en.wikipedia.org/wiki/List%20of%20Latin%20and%20Greek%20words%20commonly%20used%20in%20systematic%20names | This list of Latin and Greek words commonly used in systematic names is intended to help those unfamiliar with classical languages to understand and remember the scientific names of organisms. The binomial nomenclature used for animals and plants is largely derived from Latin and Greek words, as are some of the names u... |
https://en.wikipedia.org/wiki/MiNT | MiNT (MiNT is Now TOS) is a free software alternative operating system kernel for the Atari ST series. It is a multi-tasking alternative to TOS and MagiC. Together with the free system components fVDI device drivers, XaAES graphical user interface widgets, and TeraDesk file manager, MiNT provides a free TOS compatible ... |
https://en.wikipedia.org/wiki/Hankel%20matrix | In linear algebra, a Hankel matrix (or catalecticant matrix), named after Hermann Hankel, is a square matrix in which each ascending skew-diagonal from left to right is constant, e.g.:
More generally, a Hankel matrix is any matrix of the form
In terms of the components, if the element of is denoted with , and ass... |
https://en.wikipedia.org/wiki/Shinobi%20%281987%20video%20game%29 | is a side-scrolling hack and slash video game produced by Sega, originally released for arcades on the Sega System 16 board in 1987. The player controls ninja Joe Musashi, to stop the Zeed terrorist organization from kidnapping students of his clan.
Shinobi was a commercial success in arcades; it topped the monthly Ja... |
https://en.wikipedia.org/wiki/Seismic%20tomography | Seismic tomography is a technique for imaging the subsurface of the Earth with seismic waves produced by earthquakes or explosions. P-, S-, and surface waves can be used for tomographic models of different resolutions based on seismic wavelength, wave source distance, and the seismograph array coverage. The data receiv... |
https://en.wikipedia.org/wiki/Planning | Planning is the process of thinking regarding the activities required to achieve a desired goal. Planning is based on foresight, the fundamental capacity for mental time travel. The evolution of forethought, the capacity to think ahead, is considered to have been a prime mover in human evolution. Planning is a fundamen... |
https://en.wikipedia.org/wiki/88%20%28number%29 | 88 (eighty-eight) is the natural number following 87 and preceding 89.
In mathematics
88 is:
a refactorable number.
a primitive semiperfect number.
an untouchable number.
a hexadecagonal number.
an Erdős–Woods number, since it is possible to find sequences of 88 consecutive integers such that each inner member ... |
https://en.wikipedia.org/wiki/76%20%28number%29 | 76 (seventy-six) is the natural number following 75 and preceding 77.
In mathematics
76 is:
a composite number; a square-prime, of the form (p2, q) where q is a higher prime. It is the ninth of this general form and the seventh of the form (22.q).
a Lucas number.
a telephone or involution number, the number of di... |
https://en.wikipedia.org/wiki/69%20%28number%29 | 69 (sixty-nine) is the natural number following 68 and preceding 70.
In mathematics
69 is:
a lucky number.
the twentieth semiprime (3.23) and the seventh of the form (3.q) where q is a higher prime.
the aliquot sum of sixty-nine is 27 within the aliquot sequence (69,27,13,1,0) and is the third composite number ... |
https://en.wikipedia.org/wiki/Federico%20Faggin | Federico Faggin (, ; born 1 December 1941) is an Italian physicist, engineer, inventor and entrepreneur. He is best known for designing the first commercial microprocessor, the Intel 4004. He led the 4004 (MCS-4) project and the design group during the first five years of Intel's microprocessor effort. Faggin also crea... |
https://en.wikipedia.org/wiki/Banyan%20VINES | Banyan VINES is a discontinued network operating system developed by Banyan Systems for computers running AT&T's UNIX System V.
VINES is an acronym for Virtual Integrated NEtwork Service. Like Novell NetWare, VINES's network services are based on the Xerox XNS stack.
James Allchin, who later worked as Group Vice Pres... |
https://en.wikipedia.org/wiki/72%20%28number%29 | 72 (seventy-two) is the natural number following 71 and preceding 73. It is half a gross or 6 dozen (i.e., 60 in duodecimal).
In mathematics
Seventy-two is a pronic number, as it is the product of 8 and 9. It is the smallest Achilles number, as it's a powerful number that is not itself a power.
72 is an abundant numb... |
https://en.wikipedia.org/wiki/Coprocessor | A coprocessor is a computer processor used to supplement the functions of the primary processor (the CPU). Operations performed by the coprocessor may be floating-point arithmetic, graphics, signal processing, string processing, cryptography or I/O interfacing with peripheral devices. By offloading processor-intensive ... |
https://en.wikipedia.org/wiki/Lowest%20common%20denominator | In mathematics, the lowest common denominator or least common denominator (abbreviated LCD) is the lowest common multiple of the denominators of a set of fractions. It simplifies adding, subtracting, and comparing fractions.
Description
The lowest common denominator of a set of fractions is the lowest number that is ... |
https://en.wikipedia.org/wiki/Open%20architecture | Open architecture is a type of computer architecture or software architecture intended to make adding, upgrading, and swapping components with other computers easy. For example, the IBM PC, Amiga 500 and Apple IIe have an open architecture supporting plug-in cards, whereas the Apple IIc computer has a closed architectu... |
https://en.wikipedia.org/wiki/William%20Lowell%20Putnam%20Mathematical%20Competition | The William Lowell Putnam Mathematical Competition, often abbreviated to Putnam Competition, is an annual mathematics competition for undergraduate college students enrolled at institutions of higher learning in the United States and Canada (regardless of the students' nationalities). It awards a scholarship and cash p... |
https://en.wikipedia.org/wiki/Traitorous%20eight | The traitorous eight was a group of eight employees who left Shockley Semiconductor Laboratory in 1957 to found Fairchild Semiconductor. William Shockley had in 1956 recruited a group of young Ph.D. graduates with the goal to develop and produce new semiconductor devices. While Shockley had received a Nobel Prize in Ph... |
https://en.wikipedia.org/wiki/Thermoregulation | Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different. A thermoconforming organism, by contrast, simply adopts the surrounding temperature as its own body temperature, thus avoiding the need for internal thermoregul... |
https://en.wikipedia.org/wiki/Calcium%20in%20biology | Calcium ions (Ca2+) contribute to the physiology and biochemistry of organisms' cells. They play an important role in signal transduction pathways, where they act as a second messenger, in neurotransmitter release from neurons, in contraction of all muscle cell types, and in fertilization. Many enzymes require calcium... |
https://en.wikipedia.org/wiki/Print-through | Print-through is a generally undesirable effect that arises in the use of magnetic tape for storing analog information, in particular music, caused by contact transfer of signal patterns from one layer of tape to another as it sits wound concentrically on a reel.
Explanation
Print-through is a category of noise caused... |
https://en.wikipedia.org/wiki/Japanese%20naval%20codes | The vulnerability of Japanese naval codes and ciphers was crucial to the conduct of World War II, and had an important influence on foreign relations between Japan and the west in the years leading up to the war as well. Every Japanese code was eventually broken, and the intelligence gathered made possible such operati... |
https://en.wikipedia.org/wiki/Mastercard | Mastercard Inc. (stylized as MasterCard from 1979 to 2016, mastercard from 2016 to 2019) is the second-largest payment-processing corporation worldwide. It offers a range of payment transaction processing and other related-payment services (such as travel-related payments and bookings). Its headquarters are in Purchase... |
https://en.wikipedia.org/wiki/Potassium%20in%20biology | Potassium is the main intracellular ion for all types of cells, while having a major role in maintenance of fluid and electrolyte balance. Potassium is necessary for the function of all living cells, and is thus present in all plant and animal tissues. It is found in especially high concentrations within plant cells, a... |
https://en.wikipedia.org/wiki/Magnesium%20in%20biology | Magnesium is an essential element in biological systems. Magnesium occurs typically as the Mg2+ ion. It is an essential mineral nutrient (i.e., element) for life and is present in every cell type in every organism. For example, adenosine triphosphate (ATP), the main source of energy in cells, must bind to a magnesium i... |
https://en.wikipedia.org/wiki/Grosch%27s%20law | Grosch's law is the following observation of computer performance, made by Herb Grosch in 1953:
I believe that there is a fundamental rule, which I modestly call Grosch's law, giving added economy only as the square root of the increase in speed — that is, to do a calculation ten times as cheaply you must do it hundre... |
https://en.wikipedia.org/wiki/Pico%20%28programming%20language%29 | Pico is a programming language developed at the Software Languages Lab at Vrije Universiteit Brussel. The language was created to introduce the essentials of programming to non-computer science students.
Pico can be seen as an effort to generate a palatable and enjoyable language for people who do not want to study ha... |
https://en.wikipedia.org/wiki/Equivalence%20of%20categories | In category theory, a branch of abstract mathematics, an equivalence of categories is a relation between two categories that establishes that these categories are "essentially the same". There are numerous examples of categorical equivalences from many areas of mathematics. Establishing an equivalence involves demonstr... |
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