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https://en.wikipedia.org/wiki/Virtual%20private%20server | A virtual private server (VPS) is a virtual machine sold as a service by an Internet hosting service. The term "virtual dedicated server" (VDS) also has a similar meaning.
A virtual private server runs its own copy of an operating system (OS), and customers may have superuser-level access to that operating system ins... |
https://en.wikipedia.org/wiki/Type%20conversion | In computer science, type conversion, type casting, type coercion, and type juggling are different ways of changing an expression from one data type to another. An example would be the conversion of an integer value into a floating point value or its textual representation as a string, and vice versa. Type conversions ... |
https://en.wikipedia.org/wiki/Permeable%20paving | Permeable paving surfaces are made of either a porous material that enables stormwater to flow through it or nonporous blocks spaced so that water can flow between the gaps. Permeable paving can also include a variety of surfacing techniques for roads, parking lots, and pedestrian walkways. Permeable pavement surfaces ... |
https://en.wikipedia.org/wiki/Sender%20Policy%20Framework | Sender Policy Framework (SPF) is an email authentication method which ensures the sending mail server is authorized to originate mail from the email sender's domain. This authentication only applies to the email sender listed in the "envelope from" field during the initial SMTP connection. If the email is bounced, a me... |
https://en.wikipedia.org/wiki/EE%20Times | EE Times (Electronic Engineering Times) is an electronics industry magazine published in the United States since 1972. EE Times is currently owned by AspenCore, a division of Arrow Electronics since August 2016.
Since its acquisition by AspenCore, EE Times has seen major editorial and publishing technology investmen... |
https://en.wikipedia.org/wiki/McFarland%20standards | In microbiology, McFarland standards are used as a reference to adjust the turbidity of bacterial suspensions so that the number of bacteria will be within a given range to standardize microbial testing. An example of such testing is antibiotic susceptibility testing by measurement of minimum inhibitory concentration ... |
https://en.wikipedia.org/wiki/Hong%20Kong%20Olympiad%20in%20Informatics | Hong Kong Olympiad in Informatics (HKOI; 香港電腦奧林匹克競賽) is an annual programming competition for secondary school students in Hong Kong, emphasizing on problem solving techniques and programming skills. It is co-organized by the Hong Kong Association for Computer Education (HKACE) and the Hong Kong Education Bureau (EDB).... |
https://en.wikipedia.org/wiki/Star%20Trek%20project | Star Trek is the code name that was given to a secret prototype project, running a port of Macintosh System 7 and its applications on Intel-compatible x86 personal computers. The project, starting in February 1992, was conceived in collaboration between Apple Computer, who provided the majority of engineers, and Novel... |
https://en.wikipedia.org/wiki/Irradiance | In radiometry, irradiance is the radiant flux received by a surface per unit area. The SI unit of irradiance is the watt per square metre (W⋅m−2). The CGS unit erg per square centimetre per second (erg⋅cm−2⋅s−1) is often used in astronomy. Irradiance is often called intensity, but this term is avoided in radiometry wh... |
https://en.wikipedia.org/wiki/International%20Alphabet%20of%20Sanskrit%20Transliteration | The International Alphabet of Sanskrit Transliteration (IAST) is a transliteration scheme that allows the lossless romanisation of Indic scripts as employed by Sanskrit and related Indic languages. It is based on a scheme that emerged during the 19th century from suggestions by Charles Trevelyan, William Jones, Monier ... |
https://en.wikipedia.org/wiki/Creatures%203 | Creatures 3 is the third game in the Creatures a-life game series made by Creature Labs. In this installment, the Shee have left Albia in a spaceship, the Shee Ark, to search for a more spherical world. The Ark was abandoned by the Shee because a meteor hit the ship, but the infrastructure still remains in working orde... |
https://en.wikipedia.org/wiki/Creatures%202 | Creatures 2 is the second game in the Creatures artificial life game series made by Creature Labs, and the sequel to the 1996 game Creatures. It features three species: the cute, dependent Norns, the cantankerous Grendels and the industrious Ettins. The game tries to simulate life, and includes a complex two-dimensiona... |
https://en.wikipedia.org/wiki/Graph%20%28abstract%20data%20type%29 | In computer science, a graph is an abstract data type that is meant to implement the undirected graph and directed graph concepts from the field of graph theory within mathematics.
A graph data structure consists of a finite (and possibly mutable) set of vertices (also called nodes or points), together with a set of u... |
https://en.wikipedia.org/wiki/The%20Human%20Factor%3A%20Revolutionizing%20the%20Way%20We%20Live%20with%20Technology | The Human Factor: Revolutionizing the Way People Live with Technology () is a book by Kim Vicente that Routledge published in 2004. Vicente asserts (as cited in the Optimize article listed in the "References" section) technology in such constructs as hospitals, airplanes, and nuclear power plants have significant room ... |
https://en.wikipedia.org/wiki/Cobra%20probe | A Cobra probe is a device to measure the pressure and velocity components of a moving fluid. It is a multi-holed pressure probe with rotational axis of the probe shaft coplanar with the measurement plane of the instrument. Because of this geometry, when the instrument is rotated around the shaft's axis, the measuremen... |
https://en.wikipedia.org/wiki/Entrez | The Entrez () Global Query Cross-Database Search System is a federated search engine, or web portal that allows users to search many discrete health sciences databases at the National Center for Biotechnology Information (NCBI) website. The NCBI is a part of the National Library of Medicine (NLM), which is itself a dep... |
https://en.wikipedia.org/wiki/Level%20set | In mathematics, a level set of a real-valued function of real variables is a set where the function takes on a given constant value , that is:
When the number of independent variables is two, a level set is called a level curve, also known as contour line or isoline; so a level curve is the set of all real-value... |
https://en.wikipedia.org/wiki/Roentgen%20equivalent%20man | The roentgen equivalent man (rem) is a CGS unit of equivalent dose, effective dose, and committed dose, which are dose measures used to estimate potential health effects of low levels of ionizing radiation on the human body.
Quantities measured in rem are designed to represent the stochastic biological risk of ionizin... |
https://en.wikipedia.org/wiki/Lenna | Lenna (or Lena) is a standard test image used in the field of digital image processing starting in 1973, but it is no longer considered appropriate by some authors. It is a picture of the Swedish model Lena Forsén, shot by photographer Dwight Hooker, cropped from the centerfold of the November 1972 issue of Playboy mag... |
https://en.wikipedia.org/wiki/Biopython | The Biopython project is an open-source collection of non-commercial Python tools for computational biology and bioinformatics, created by an international association of developers. It contains classes to represent biological sequences and sequence annotations, and it is able to read and write to a variety of file for... |
https://en.wikipedia.org/wiki/ATASCII | The ATASCII character set, from ATARI Standard Code for Information Interchange, alternatively ATARI ASCII, is the variation on ASCII used in the Atari 8-bit family of home computers. The first of this family are the Atari 400 and 800, released in 1979, and later models were released throughout the 1980s. The last com... |
https://en.wikipedia.org/wiki/Baku%20TV%20Tower | The Baku TV Tower (), built in 1996, is a free standing concrete telecommunications tower in Baku, Azerbaijan. With a height of 310 metres (1017 ft or 480 meters from Caspian sea level), it is the tallest structure in Azerbaijan and the tallest reinforced concrete building in Caucasus.
The tower has become one of the ... |
https://en.wikipedia.org/wiki/TightVNC | TightVNC is a free and open-source remote desktop software server and client application for Linux and Windows. A server for macOS is available under a commercial source code license only, without SDK or binary version provided. Constantin Kaplinsky developed TightVNC, using and extending the RFB protocol of Virtual Ne... |
https://en.wikipedia.org/wiki/RealVNC | RealVNC is a company that provides remote access software. Their VNC Connect software consists of a server (VNC Server) and client (VNC Viewer) application, which exchange data over the RFB protocol to allow the Viewer to control the Server's screen remotely. The application is used, for example, by IT support engineer... |
https://en.wikipedia.org/wiki/Unsharp%20masking | Unsharp masking (USM) is an image sharpening technique, first implemented in darkroom photography, but now commonly used in digital image processing software. Its name derives from the fact that the technique uses a blurred, or "unsharp", negative image to create a mask of the original image. The unsharp mask is then c... |
https://en.wikipedia.org/wiki/Master%20theorem%20%28analysis%20of%20algorithms%29 | In the analysis of algorithms, the master theorem for divide-and-conquer recurrences provides an asymptotic analysis (using Big O notation) for recurrence relations of types that occur in the analysis of many divide and conquer algorithms. The approach was first presented by Jon Bentley, Dorothea Blostein (née Haken), ... |
https://en.wikipedia.org/wiki/Raid%20on%20Bungeling%20Bay | Raid on Bungeling Bay (バンゲリングベイ lit.: Bungeling Bay) is a shoot 'em up video game developed by Will Wright and published by Broderbund for the Commodore 64 in 1984. It was the first video game designed by Will Wright. The Commodore 64 version was published in the UK by Ariolasoft. The game inspired Wright to develop Si... |
https://en.wikipedia.org/wiki/Hyperelliptic%20curve%20cryptography | Hyperelliptic curve cryptography is similar to elliptic curve cryptography (ECC) insofar as the Jacobian of a hyperelliptic curve is an abelian group in which to do arithmetic, just as we use the group of points on an elliptic curve in ECC.
Definition
An (imaginary) hyperelliptic curve of genus over a field is given... |
https://en.wikipedia.org/wiki/Yasumasa%20Kanada | was a Japanese computer scientist most known for his numerous world records over the past three decades for calculating digits of . He set the record 11 of the past 21 times.
Kanada was a professor in the Department of Information Science at the University of Tokyo in Tokyo, Japan until 2015.
From 2002 until 2009, Ka... |
https://en.wikipedia.org/wiki/Bandlimiting | Bandlimiting refers to a process which reduces the energy of a signal to an acceptably low level outside of a desired frequency range.
Bandlimiting is an essential part of many applications in signal processing and communications. Examples include controlling interference between radio frequency communications signal... |
https://en.wikipedia.org/wiki/Magnesium%20chloride | Magnesium chloride is an inorganic compound with the formula . It forms hydrates , where n can range from 1 to 12. These salts are colorless or white solids that are highly soluble in water. These compounds and their solutions, both of which occur in nature, have a variety of practical uses. Anhydrous magnesium chlorid... |
https://en.wikipedia.org/wiki/Sorting%20network | In computer science, comparator networks are abstract devices built up of a fixed number of "wires", carrying values, and comparator modules that connect pairs of wires, swapping the values on the wires if they are not in a desired order. Such networks are typically designed to perform sorting on fixed numbers of value... |
https://en.wikipedia.org/wiki/Toothing | Toothing was originally a hoax claim that Bluetooth-enabled mobile phones or PDAs were being used to arrange random sexual encounters, perpetrated as a prank on the media who reported it. The hoax was created by Ste Curran, then Editor at Large at the gaming magazine Edge, and ex-journalist Simon Byron. They based it o... |
https://en.wikipedia.org/wiki/Grady%20Booch | Grady Booch (born February 27, 1955) is an American software engineer, best known for developing the Unified Modeling Language (UML) with Ivar Jacobson and James Rumbaugh. He is recognized internationally for his innovative work in software architecture, software engineering, and collaborative development environments.... |
https://en.wikipedia.org/wiki/Butterworth%20filter | The Butterworth filter is a type of signal processing filter designed to have a frequency response that is as flat as possible in the passband. It is also referred to as a maximally flat magnitude filter. It was first described in 1930 by the British engineer and physicist Stephen Butterworth in his paper entitled "On ... |
https://en.wikipedia.org/wiki/128%20%28number%29 | 128 (one hundred [and] twenty-eight) is the natural number following 127 and preceding 129.
In mathematics
128 is the seventh power of 2. It is the largest number which cannot be expressed as the sum of any number of distinct squares. However, it is divisible by the total number of its divisors, making it a refactorab... |
https://en.wikipedia.org/wiki/175%20%28number%29 | 175 (one hundred [and] seventy-five) is the natural number following 174 and preceding 176.
In mathematics
Raising the decimal digits of 175 to the powers of successive integers produces 175 back again:
175 is a figurate number for a rhombic dodecahedron, the difference of two consecutive fourth powers: It is also ... |
https://en.wikipedia.org/wiki/260%20%28number%29 | 260 (two hundred [and] sixty) is the natural number following 259 and preceding 261.
It is also the magic constant of the n×n normal magic square and n-queens problem for n = 8, the size of an actual chess board.
260 is also the magic constant of the Franklin magic square devised by Benjamin Franklin.
The minor diag... |
https://en.wikipedia.org/wiki/Simulink | Simulink is a MATLAB-based graphical programming environment for modeling, simulating and analyzing multidomain dynamical systems. Its primary interface is a graphical block diagramming tool and a customizable set of block libraries. It offers tight integration with the rest of the MATLAB environment and can either dri... |
https://en.wikipedia.org/wiki/Jay%20Last | Jay Taylor Last (October 18, 1929 – November 11, 2021) was an American physicist, silicon pioneer, and member of the so-called "traitorous eight" that founded Silicon Valley.
Early life and education
Last was born in Butler, Pennsylvania, on October 18, 1929, at the beginning of the Stock Market Crash of 1929, and gre... |
https://en.wikipedia.org/wiki/Higher-order%20logic | In mathematics and logic, a higher-order logic (abbreviated HOL) is a form of predicate logic that is distinguished from first-order logic by additional quantifiers and, sometimes, stronger semantics. Higher-order logics with their standard semantics are more expressive, but their model-theoretic properties are less we... |
https://en.wikipedia.org/wiki/Dc%20%28computer%20program%29 | dc (desk calculator) is a cross-platform reverse-Polish calculator which supports arbitrary-precision arithmetic. Written by Lorinda Cherry and Robert Morris at Bell Labs, it is one of the oldest Unix utilities, preceding even the invention of the C programming language. Like other utilities of that vintage, it has a p... |
https://en.wikipedia.org/wiki/3000%20%28number%29 | 3000 (three thousand) is the natural number following 2999 and preceding 3001. It is the smallest number requiring thirteen letters in English (when "and" is required from 101 forward).
Selected numbers in the range 3001–3999
3001 to 3099
3001 – super-prime; divides the Euclid number 2999# + 1
3003 – triangular num... |
https://en.wikipedia.org/wiki/4000%20%28number%29 | 4000 (four thousand) is the natural number following 3999 and preceding 4001. It is a decagonal number.
Selected numbers in the range 4001–4999
4001 to 4099
4005 – triangular number
4007 – safe prime
4010 – magic constant of n × n normal magic square and n-queens problem for n = 20.
4013 – balanced prime
4019 – ... |
https://en.wikipedia.org/wiki/5000%20%28number%29 | 5000 (five thousand) is the natural number following 4999 and preceding 5001. Five thousand is the largest isogrammic numeral in the English language.
Selected numbers in the range 5001–5999
5001 to 5099
5003 – Sophie Germain prime
5020 – amicable number with 5564
5021 – super-prime, twin prime with 5023
5023 – t... |
https://en.wikipedia.org/wiki/6000%20%28number%29 | 6000 (six thousand) is the natural number following 5999 and preceding 6001.
Selected numbers in the range 6001–6999
6001 to 6099
6025 – Rhythm guitarist of the Dead Kennedys from June 1978 to March 1979. Full name is Carlos Cadona.
6028 – centered heptagonal number
6037 – super-prime, prime of the form 2p-1
604... |
https://en.wikipedia.org/wiki/Sundaland | Sundaland (also called Sundaica or the Sundaic region) is a biogeographical region of South-eastern Asia corresponding to a larger landmass that was exposed throughout the last 2.6 million years during periods when sea levels were lower. It includes Bali, Borneo, Java, and Sumatra in Indonesia, and their surrounding sm... |
https://en.wikipedia.org/wiki/Biological%20rhythm | Biological rhythms are repetitive biological processes. Some types of biological rhythms have been described as biological clocks. They can range in frequency from microseconds to less than one repetitive event per decade. Biological rhythms are studied by chronobiology. In the biochemical context biological rhythms ar... |
https://en.wikipedia.org/wiki/Wallacea | Wallacea is a biogeographical designation for a group of mainly Indonesian islands separated by deep-water straits from the Asian and Australian continental shelves. Wallacea includes Sulawesi, the largest island in the group, as well as Lombok, Sumbawa, Flores, Sumba, Timor, Halmahera, Buru, Seram, and many smaller i... |
https://en.wikipedia.org/wiki/Membrane%20potential | Membrane potential (also transmembrane potential or membrane voltage) is the difference in electric potential between the interior and the exterior of a biological cell. That is, there is a difference in the energy required for electric charges to move from the internal to exterior cellular environments and vice versa,... |
https://en.wikipedia.org/wiki/Torus-based%20cryptography | Torus-based cryptography involves using algebraic tori to construct a group for use in ciphers based on the discrete logarithm problem. This idea was first introduced by Alice Silverberg and Karl Rubin in 2003 in the form of a public key algorithm by the name of CEILIDH. It improves on conventional cryptosystems by re... |
https://en.wikipedia.org/wiki/369%20%28number%29 | Three hundred sixty-nine is the natural number following three hundred sixty-eight and preceding three hundred seventy.
In mathematics
369 is the magic constant of the 9 × 9 magic square and the n-Queens Problem for n = 9.
There are 369 free octominoes (polyominoes of order 8).
369 is a Ruth-Aaron Pair with 370. Th... |
https://en.wikipedia.org/wiki/Biogenic%20substance | A biogenic substance is a product made by or of life forms. While the term originally was specific to metabolite compounds that had toxic effects on other organisms, it has developed to encompass any constituents, secretions, and metabolites of plants or animals. In context of molecular biology, biogenic substances are... |
https://en.wikipedia.org/wiki/Floppy%20disk%20drive%20interface | Each generation of floppy disk drive (FDD) began with a variety of incompatible interfaces but soon evolved into one de facto standard interface for the generations of 8-inch FDDs, 5.25-inch FDDs and 3.5-inch FDDs. For example, before adopting 3.5-inch FDD standards for interface, media and form factor there were driv... |
https://en.wikipedia.org/wiki/DISCiPLE | The DISCiPLE is a floppy disk interface for the ZX Spectrum home computer. Designed by Miles Gordon Technology, it was marketed by Rockfort Products and launched in 1986.
Like Sinclair's own ZX Interface 1, the DISCiPLE was a wedge-shaped unit fitting underneath the Spectrum. It was designed as a super-interface, prov... |
https://en.wikipedia.org/wiki/Septentrional | Septentrional, meaning "of the north", is a Latinate adjective sometimes used in English. It is a form of the Latin noun septentriones, which refers to the seven stars of the Plough (Big Dipper), occasionally called the Septentrion.
In the 18th century, septentrional languages was a recognised term for the Germanic la... |
https://en.wikipedia.org/wiki/Gell-Mann%20matrices | The Gell-Mann matrices, developed by Murray Gell-Mann, are a set of eight linearly independent 3×3 traceless Hermitian matrices used in the study of the strong interaction in particle physics.
They span the Lie algebra of the SU(3) group in the defining representation.
Matrices
{| border="0" cellpadding="8" cellspa... |
https://en.wikipedia.org/wiki/Newgrounds | Newgrounds is a company and entertainment website founded by Tom Fulp in 1995. It hosts user-generated content such as games, films, audio, and artwork. Fulp produces in-house content at the headquarters and offices in Glenside, Pennsylvania.
In the 2000s and 2010s, Newgrounds played an important role in Internet cult... |
https://en.wikipedia.org/wiki/Electromigration | Electromigration is the transport of material caused by the gradual movement of the ions in a conductor due to the momentum transfer between conducting electrons and diffusing metal atoms. The effect is important in applications where high direct current densities are used, such as in microelectronics and related stru... |
https://en.wikipedia.org/wiki/Baby-step%20giant-step | In group theory, a branch of mathematics, the baby-step giant-step is a meet-in-the-middle algorithm for computing the discrete logarithm or order of an element in a finite abelian group by Daniel Shanks. The discrete log problem is of fundamental importance to the area of public key cryptography.
Many of the most com... |
https://en.wikipedia.org/wiki/OpenAL | OpenAL (Open Audio Library) is a cross-platform audio application programming interface (API). It is designed for efficient rendering of multichannel three-dimensional positional audio. Its API style and conventions deliberately resemble those of OpenGL. OpenAL is an environmental 3D audio library, which can add realis... |
https://en.wikipedia.org/wiki/Look-and-say%20sequence | In mathematics, the look-and-say sequence is the sequence of integers beginning as follows:
1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, 31131211131221, ... .
To generate a member of the sequence from the previous member, read off the digits of the previous member, counting the number of digits in groups o... |
https://en.wikipedia.org/wiki/Kato%20%28The%20Green%20Hornet%29 | Kato is a fictional character from The Green Hornet franchise. This character has appeared with the Green Hornet in radio, film, television, book and comic book versions. Kato is the Hornet's assistant and has been played by a number of actors. On radio, Kato was initially played by Raymond Hayashi, then Roland Parker ... |
https://en.wikipedia.org/wiki/Delimiter | A delimiter is a sequence of one or more characters for specifying the boundary between separate, independent regions in plain text, mathematical expressions or other data streams. An example of a delimiter is the comma character, which acts as a field delimiter in a sequence of comma-separated values. Another example ... |
https://en.wikipedia.org/wiki/Site-directed%20mutagenesis | Site-directed mutagenesis is a molecular biology method that is used to make specific and intentional mutating changes to the DNA sequence of a gene and any gene products. Also called site-specific mutagenesis or oligonucleotide-directed mutagenesis, it is used for investigating the structure and biological activity of... |
https://en.wikipedia.org/wiki/Expression%20vector | An expression vector, otherwise known as an expression construct, is usually a plasmid or virus designed for gene expression in cells. The vector is used to introduce a specific gene into a target cell, and can commandeer the cell's mechanism for protein synthesis to produce the protein encoded by the gene. Expression... |
https://en.wikipedia.org/wiki/Catalan%20solid | In mathematics, a Catalan solid, or Archimedean dual, is a polyhedron that is dual to an Archimedean solid. There are 13 Catalan solids. They are named for the Belgian mathematician Eugène Catalan, who first described them in 1865.
The Catalan solids are all convex. They are face-transitive but not vertex-transitive. ... |
https://en.wikipedia.org/wiki/Virtual%20ground | In electronics, a virtual ground (or virtual earth) is a node of a circuit that is maintained at a steady reference potential, without being connected directly to the reference potential. In some cases the reference potential is considered to be that of the surface of the earth, and the reference node is called "groun... |
https://en.wikipedia.org/wiki/Digital%20control | Digital control is a branch of control theory that uses digital computers to act as system controllers.
Depending on the requirements, a digital control system can take the form of a microcontroller to an ASIC to a standard desktop computer.
Since a digital computer is a discrete system, the Laplace transform is replac... |
https://en.wikipedia.org/wiki/Discrete%20system | In theoretical computer science, a discrete system is a system with a countable number of states. Discrete systems may be contrasted with continuous systems, which may also be called analog systems. A final discrete system is often modeled with a directed graph and is analyzed for correctness and complexity according ... |
https://en.wikipedia.org/wiki/Hybrid%20system | A hybrid system is a dynamical system that exhibits both continuous and discrete dynamic behavior – a system that can both flow (described by a differential equation) and jump (described by a state machine or automaton). Often, the term "hybrid dynamical system" is used, to distinguish over hybrid systems such as those... |
https://en.wikipedia.org/wiki/Closed-loop%20controller | A closed-loop controller or feedback controller is a control loop which incorporates feedback, in contrast to an open-loop controller or non-feedback controller.
A closed-loop controller uses feedback to control states or outputs of a dynamical system. Its name comes from the information path in the system: process inp... |
https://en.wikipedia.org/wiki/Cell%20growth | Cell growth refers to an increase in the total mass of a cell, including both cytoplasmic, nuclear and organelle volume. Cell growth occurs when the overall rate of cellular biosynthesis (production of biomolecules or anabolism) is greater than the overall rate of cellular degradation (the destruction of biomolecules v... |
https://en.wikipedia.org/wiki/Numero%20sign | The numero sign or numero symbol, №, (also represented as Nº, No̱, No. or no.), is a typographic abbreviation of the word number(s) indicating ordinal numeration, especially in names and titles. For example, using the numero sign, the written long-form of the address is shortened to , yet both forms are spoken long.
... |
https://en.wikipedia.org/wiki/Nslookup | nslookup (from "name server lookup") is a network administration command-line tool for querying the Domain Name System (DNS) to obtain the mapping between domain name and IP address, or other DNS records.
Overview
nslookup was a member of the BIND name server software. Early in the development of BIND 9, the Internet ... |
https://en.wikipedia.org/wiki/Bernard%20Fr%C3%A9nicle%20de%20Bessy | Bernard Frénicle de Bessy (c. 1604 – 1674), was a French mathematician born in Paris, who wrote numerous mathematical papers, mainly in number theory and combinatorics. He is best remembered for , a treatise on magic squares published posthumously in 1693, in which he described all 880 essentially different normal magi... |
https://en.wikipedia.org/wiki/Robert%20Woodhouse | Robert Woodhouse (28 April 177323 December 1827) was a British mathematician and astronomer.
Biography
Early life and education
Robert Woodhouse was born on 28 April 1773 in Norwich, Norfolk, the son of Robert Woodhouse, linen draper, and Judith Alderson, the daughter of a Unitarian minister from Lowestoft. Robert j... |
https://en.wikipedia.org/wiki/Particle%20displacement | Particle displacement or displacement amplitude is a measurement of distance of the movement of a sound particle from its equilibrium position in a medium as it transmits a sound wave.
The SI unit of particle displacement is the metre (m). In most cases this is a longitudinal wave of pressure (such as sound), but it ... |
https://en.wikipedia.org/wiki/7000%20%28number%29 | 7000 (seven thousand) is the natural number following 6999 and preceding 7001.
Selected numbers in the range 7001–7999
7001 to 7099
7021 – triangular number
7043 – Sophie Germain prime
7056 = 842
7057 – cuban prime of the form x = y + 1, super-prime
7073 – Leyland number
7079 – Sophie Germain prime, safe prime
... |
https://en.wikipedia.org/wiki/8000%20%28number%29 | 8000 (eight thousand) is the natural number following 7999 and preceding 8001.
8000 is the cube of 20, as well as the sum of four consecutive integers cubed, 113 + 123 + 133 + 143.
The fourteen tallest mountains on Earth, which exceed 8000 meters in height, are sometimes referred to as eight-thousanders.
Selected nu... |
https://en.wikipedia.org/wiki/RIVA%20128 | Released in August 1997 by Nvidia, the RIVA 128, or "NV3", was one of the first consumer graphics processing units to integrate 3D acceleration in addition to traditional 2D and video acceleration. Its name is an acronym for Real-time Interactive Video and Animation accelerator.
Following the less successful "NV1" acc... |
https://en.wikipedia.org/wiki/RIVA%20TNT | The RIVA TNT, codenamed NV4, is a 2D, video, and 3D graphics accelerator chip for PCs that was developed by Nvidia. It was released in March 1998 and cemented Nvidia's reputation as a worthy rival within the developing consumer 3D graphics adapter industry. The first RIVA TNT based card was released on June 15, 1998, b... |
https://en.wikipedia.org/wiki/RIVA%20TNT2 | The RIVA TNT2 is a graphics processing unit manufactured by Nvidia starting in early 1999. The chip is codenamed "NV5" because it is the 5th graphics chip design by Nvidia, succeeding the RIVA TNT (NV4). RIVA is an acronym for Real-time Interactive Video and Animation accelerator. The "TNT" suffix refers to the chip's... |
https://en.wikipedia.org/wiki/Symbolic%20method | In mathematics, the symbolic method in invariant theory is an algorithm developed by Arthur Cayley, Siegfried Heinrich Aronhold, Alfred Clebsch, and Paul Gordan in the 19th century for computing invariants of algebraic forms. It is based on treating the form as if it were a power of a degree one form, which correspond... |
https://en.wikipedia.org/wiki/Disassortative%20mating | Disassortative mating (also known as negative assortative mating or heterogamy) is a mating pattern in which individuals with dissimilar phenotypes mate with one another more frequently than would be expected under random mating. Disassortative mating reduces the mean genetic similarities within the population and prod... |
https://en.wikipedia.org/wiki/IBM%201130 | The IBM 1130 Computing System, introduced in 1965, was IBM's least expensive computer at that time. A binary 16-bit machine, it was marketed to price-sensitive, computing-intensive technical markets, like education and engineering, succeeding the decimal IBM 1620 in that market segment. Typical installations included a... |
https://en.wikipedia.org/wiki/Tint%20control | Because the NTSC color television standard relies on the absolute phase of the color information, color errors occur when the phase of the video signal is altered between source and receiver, or due to non linearities in electronics. To correct for phase errors, a tint control is provided on NTSC television sets, whic... |
https://en.wikipedia.org/wiki/Distcc | In software development, distcc is a tool for speeding up compilation of source code by using distributed computing over a computer network. With the right configuration, distcc can dramatically reduce a project's compilation time.
It is designed to work with the C programming language (and its derivatives like C++ an... |
https://en.wikipedia.org/wiki/N%20Seoul%20Tower | The N Seoul Tower (), officially the YTN Seoul Tower and commonly known as Namsan Tower or Seoul Tower, is a communication and observation tower located on Nam Mountain in central Seoul, South Korea. The -tall tower marks the second highest point in Seoul and is considered a local landmark.
Built in 1969, the N Seoul ... |
https://en.wikipedia.org/wiki/Piconet | A piconet is an ad hoc network that links a wireless user group of devices using Bluetooth technology protocols. A piconet consists of two or more devices occupying the same physical channel (synchronized to a common clock and hopping sequence). It allows one master device to interconnect with up to seven active slave ... |
https://en.wikipedia.org/wiki/Scatternet | A scatternet is a type of ad hoc computer network consisting of two or more piconets. The terms "scatternet" and "piconet" are typically applied to Bluetooth wireless technology.
Description
A piconet is the type of connection that is formed between two or more Bluetooth-enabled devices such as modern cell phones. Blu... |
https://en.wikipedia.org/wiki/8b/10b%20encoding | In telecommunications, 8b/10b is a line code that maps 8-bit words to 10-bit symbols to achieve DC balance and bounded disparity, and at the same time provide enough state changes to allow reasonable clock recovery. This means that the difference between the counts of ones and zeros in a string of at least 20 bits is ... |
https://en.wikipedia.org/wiki/Data%20link%20connection%20identifier | A data link connection identifier (DLCI) is a Frame Relay 10-bit-wide link-local virtual circuit identifier used to assign frames to a specific PVC or SVC. Frame Relay networks use DLCIs to statistically multiplex frames. DLCIs are preloaded into each switch and act as road signs to the traveling frames.
The standard ... |
https://en.wikipedia.org/wiki/Sleep%20cycle | The sleep cycle is an oscillation between the slow-wave and REM (paradoxical) phases of sleep. It is sometimes called the ultradian sleep cycle, sleep–dream cycle, or REM-NREM cycle, to distinguish it from the circadian alternation between sleep and wakefulness. In humans, this cycle takes 70 to 110 minutes (90 ± 20 mi... |
https://en.wikipedia.org/wiki/880%20%28number%29 | 880 (eight hundred [and] eighty) is the natural number following 879 and preceding 881.
It is the number of 4-by-4 magic squares.
And the triple factorial: 11!!! = 880.
880 is the frequency in hertz of the musical note A5.
880 is also:
The code for international direct dialing phone calls to Bangladesh
The year 8... |
https://en.wikipedia.org/wiki/Quasi-arithmetic%20mean | In mathematics and statistics, the quasi-arithmetic mean or generalised f-mean or Kolmogorov-Nagumo-de Finetti mean is one generalisation of the more familiar means such as the arithmetic mean and the geometric mean, using a function . It is also called Kolmogorov mean after Soviet mathematician Andrey Kolmogorov. It i... |
https://en.wikipedia.org/wiki/UnixWare | UnixWare is a Unix operating system. It was originally released by Univel, a jointly owned venture of AT&T's Unix System Laboratories (USL) and Novell. It was then taken over by Novell. Via Santa Cruz Operation (SCO), it went on to Caldera Systems, Caldera International, and The SCO Group before it was sold to UnXis (... |
https://en.wikipedia.org/wiki/Hashcash | Hashcash is a proof-of-work system used to limit E-mail spam and denial-of-service attacks. Hashcash was proposed in 1997 by Adam Back and described more formally in Back's 2002 paper "Hashcash - A Denial of Service Counter-Measure".
Background
The idea "...to require a user to compute a moderately hard, but not intra... |
https://en.wikipedia.org/wiki/Biodiversity%20hotspot | A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation. Norman Myers wrote about the concept in two articles in The Environmentalist in 1988 and 1990, after which the concept was revised following thorough analysis by Myers and others into “Hotsp... |
https://en.wikipedia.org/wiki/Mental%20calculation | Mental calculation consists of arithmetical calculations using only the human brain, with no help from any supplies (such as pencil and paper) or devices such as a calculator. People may use mental calculation when computing tools are not available, when it is faster than other means of calculation (such as conventiona... |
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