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In the theory of special functions in mathematics, the Horn functions (named for Jakob Horn) are the 34 distinct convergent hypergeometric series of order
Horn_function
Genus of fishes
lack the horn, while it is only the large relatively slow-swimming species which display the horn. Molecular phylogenetics show that horns independently
Naso_(fish)
Genus of spiders
female A. junodi. The horn of C. marshalli stands straight up about 1 cm in an adult. There are several probable functions for this horn: according to a study
Ceratogyrus
Animal anatomy of hornlike growths
Look up horn in Wiktionary, the free dictionary. A horn is a permanent pointed projection on the head of various animals that consists of a covering of
Horn_(anatomy)
Type of paper tube horn
party horn (also known as a party blower) is a paper noisemaker which unfurls and produces a horn-like noise when a person blows into it. Party horns may
Party_horn
Loudspeaker using an acoustic horn
partitions to form a zigzag flaring duct which functions as a horn; this type is called a folded horn speaker. The horn serves to improve the coupling efficiency
Horn_loudspeaker
Natural horn instrument
has kept its function and profile in many cattle raising, agricultural and hunter-gatherer societies. The oldest varieties were made of horns of Bovidae
Blowing_horn
German mathematician
Jakob Horn (14 February 1867 – 24 February 1946) was a German mathematician who introduced Horn functions. Über systeme linearer Differentialgleichungen
Jakob_Horn
Family of mammals
ῥινόκερως (rhinókerōs) 'nose-horned'; from ῥίς (rhis) 'nose' and κέρας (kéras) 'horn'; pl.: rhinoceros or rhinoceroses), commonly abbreviated to rhino, is a member
Rhinoceros
Peninsula and geopolitical region
The Horn of Africa (HOA), also known as the Somali Peninsula, is a large peninsula and geopolitical region located in the easternmost part of mainland
Horn_of_Africa
Family of musical instruments
Natural horn Bugle Post horn French horn German horn Vienna horn Wagner tuba Saxhorns, including: Alto horn (UK: tenor horn), pitched in E♭ Baritone horn, pitched
Horn_(instrument)
Funnel-shaped waveguide radio device
A horn antenna or microwave horn is an antenna that consists of a flaring metal waveguide shaped like a horn to direct radio waves in a beam. Horns are
Horn_antenna
Focusing device in neutrino physics
neutrinos or antineutrinos, a focused neutrino beam is obtained. A magnetic horn functions by using high strength pulsed currents (hundreds of kA) to produce a
Magnetic_horn
Primary inlet of the Bosphorus in Istanbul, Turkey
Golden Horn (Turkish: Altın Boynuz or Haliç) is a major urban waterway and the primary inlet of the Bosphorus in Istanbul, Turkey. The Golden Horn connects
Golden_Horn
Mathematical function, denoted exp(x) or e^x
In mathematics, the exponential function is the unique real function which maps zero to one and has a derivative everywhere equal to its value. It is denoted
Exponential_function
Geometric figure which has infinite surface area but finite volume
Gabriel's horn (also called Torricelli's trumpet) is a type of geometric figure that has infinite surface area but finite volume. The name refers to the
Gabriel's_horn
Problem in formal logic
Horn-satisfiability, or HORNSAT, is the problem of deciding whether a given conjunction of propositional Horn clauses is satisfiable or not. Horn-satisfiability
Horn-satisfiability
Noisemaking device
produced by the horn. The longer the horn, the lower the pitch. Larger air horns used on ships and foghorns function similarly to a whistle; instead of
Air_horn
Stethoscope used to listen to the heart rate of a fetus
millimetres (7.9 in) long. It functions similarly to an ear trumpet by amplifying sound. The user holds the wide end of the horn against the pregnant woman's
Pinard_horn
Low-pitched brass instrument
The baritone horn, or often simply the baritone, is a valved brass instrument pitched in B♭ in the saxhorn family, employed chiefly in brass, military
Baritone_horn
Three columns of grey matter within the spinal cord
located in the other two grey columns in the spinal cord. The function of the spinal dorsal horn is to process and integrate sensory information from the peripheral
Grey_columns
Spirit in Basque mythology
witches and elves. In that lunch it was served human-meat and his horns functioned as gigantic candles. To continue with the celebration, Aker and his
Akerbeltz
Extinct genus of rodents
America, mostly Nebraska. The role of the horns of Ceratogaulus is subject to much speculation. Several functions have been hypothesized (see below for a
Ceratogaulus
Ultrasonic device
for most practical applications of power ultrasound. Another function of the ultrasonic horn is to efficiently transfer the acoustic energy from the ultrasonic
Ultrasonic_horn
Problem of determining if a Boolean formula could be made true
deciding the satisfiability of a given conjunction of Horn clauses is called Horn-satisfiability, or HORN-SAT. It can be solved in polynomial time by a single
Boolean satisfiability problem
Boolean_satisfiability_problem
British breed of sheep
Wiltshire Horn was until the eighteenth century one of the predominant sheep breeds of southern England. For hundreds of years, it served a clear function on
Wiltshire_Horn
Hankel: Hankel function Heine: Heine functions Charles Hermite: Hermite polynomials Karl L. W. M. Heun (1859 – 1929): Heun's equation J. Horn: Horn hypergeometric
List of eponyms of special functions
List_of_eponyms_of_special_functions
Native American ceremonial site in Wyoming, US
to the Big Horn Medicine Wheel, dates back over ten thousand years. No indigenous peoples have publicly claimed to have built the Big Horn Medicine Wheel
Medicine Wheel/Medicine Mountain National Historic Landmark
Medicine_Wheel/Medicine_Mountain_National_Historic_Landmark
Type of mathematical expression
substitution to the substituted value is a function, called a polynomial function; see § Polynomial functions. This can be expressed more concisely by using
Polynomial
1876 battle of the Great Sioux War
Yellowstone area. On the way he noted that the Crow hunted buffalo on the "Small Horn River". St. Louis-based fur trader Manuel Lisa built Fort Raymond in 1807
Battle_of_the_Little_Bighorn
Iconographic convention
The Horns of Moses are an iconographic convention common in Latin Christianity whereby Moses was presented as having two horns on his head, later replaced
Horns_of_Moses
Legendary object in European and Asian cultures
venom) or against the plague. The horn was prepared in several ways, in solid form, or by infusion Its prophylactic function and magical power were assumed
Unicorn_horn
Legendary single-horned horse-like creature
described since antiquity as a beast with a single large, pointed, spiraling horn projecting from its forehead. In European literature and art, the unicorn
Unicorn
Hungarian-American mathematician
theory of Horn functions, Boros, Crama & Hammer (1990) proved that all "prime implicates" of a Horn CNF can be generated efficiently, extended Horn logic
Endre_Boros
Curve traced by a point on a rod as one end is dragged along a line
P. G. A. H. Voigt patented a horn loudspeaker design based on the assumption that a wave front traveling through the horn is spherical of a constant radius
Tractrix
Ethnic group
other materials such as wood, matting, horns, or bark. Wooden troughs functioned as dishes while horns functioned as drinking pieces. Kettles were obtained
Gwichyaa_Gwichʼin
Bone situated in the neck between the chin and the thyroid-cartilage
consists of a central part called the body, and two pairs of horns, the greater and lesser horns. The body of the hyoid bone is its central section.[clarification
Hyoid_bone
American mathematician
Roger Alan Horn (born January 19, 1942) is an American mathematician specializing in matrix analysis. He was research professor of mathematics at the University
Roger_Horn
Species of shark
Sharks portal The horn shark (Heterodontus francisci) is a species of bullhead shark, in the family Heterodontidae. It is endemic to the coastal waters
Horn_shark
Iron Age bronze artifact found in Scotland
agreed that the horns are somewhat later than the cap, and in a rather different style. Whatever the original appearance and functions of the objects,
Torrs_Pony-cap_and_Horns
Genus of Late Cretaceous dinosaur
likely preyed upon by Tyrannosaurus rex. The functions of the frills and three distinctive facial horns on its head have inspired countless debates. Traditionally
Triceratops
Vertebrate brain region
earliest description of the ridge running along the floor of the inferior horn of the lateral ventricle comes from the Venetian anatomist Julius Caesar
Hippocampus
Organ central to the nervous system
myelencephalon). The spinal cord, which directly coordinates somatic functions below the head, can be considered a caudal extension of the myelencephalon
Brain
American biologist (1897–1972)
the bull grew the horn buds fused together and started to form a single, straight horn about a foot in length. The horn functioned very well for the bull
W._Franklin_Dove
1st millennium BC process
suggested two distinct trajectories to social complexity in the northern Horn of Africa. An early culture in the Eritrean-Sudanese lowlands was the Atbai
Sabaeans in the Horn of Africa
Sabaeans_in_the_Horn_of_Africa
Horn instrument made from ivory
was said to have used this horn for hunting as well as war. Additionally, these horns sometimes had a religious function. For example, olifants were
Olifant_(instrument)
Species of North American hoofed mammal
The pronghorn (UK: /ˈprɒŋ.hɔːrn/, US: /ˈprɔːŋ.-/) (Antilocapra americana) is a species of artiodactyl (even-toed, hoofed) mammal indigenous to interior
Pronghorn
Chamber music work composed by Don Banks
quavers, and functions similarly to the rhythm section of a jazz ensemble. Trio for horn, violin, and piano (Berkeley) Horn Trio (Brahms) Horn Trio (Holbrooke)
Trio for horn, violin and piano (Banks)
Trio_for_horn,_violin_and_piano_(Banks)
Physical transmission device
A horn antenna or microwave horn is an antenna that consists of a flaring metal waveguide shaped like a horn to direct radio waves in a beam. Horns are
Microwave_antenna
Horn-like structure on some animal heads
Ossicones are distinguished from the superficially similar structures of horns and antlers by their unique development and a permanent covering of skin
Ossicone
Method of estimating optical flow
The Horn–Schunck method of estimating optical flow is a global method which introduces a global constraint of smoothness to solve the aperture problem
Horn–Schunck_method
mathematics, the notions of an absolutely monotonic function and a completely monotonic function are two very closely related concepts. Both imply very
Absolutely and completely monotonic functions and sequences
Absolutely_and_completely_monotonic_functions_and_sequences
Continent
the Horn". The Cambridge History of Africa: Volume 3. Cambridge University Press. ISBN 978-0-521-20981-6. Mekouria, Tekle-Tsadik (1988). "The Horn of Africa"
Africa
2024 studio album by Xiu Xiu
13" Frank Beltrame Italian Stiletto with Bison Horn Grips, colloquially referred to as 13", is the fourteenth studio album by American experimental band
13" Frank Beltrame Italian Stiletto with Bison Horn Grips
13"_Frank_Beltrame_Italian_Stiletto_with_Bison_Horn_Grips
Genus of theropod dinosaur from the Late Jurassic period
Ceratosaurus /ˌsɛrətoʊˈsɔːrəs/ (from Greek κέρας / κέρατος keras / keratos 'horn' and σαῦρος sauros 'lizard') is a genus of carnivorous theropod dinosaur
Ceratosaurus
Protein
as a protein receptor in the hedgehog pathway. The later of these two functions causes an inhibitory effect during the development of embryonic cells
PTCHD4
2026 death in Mississippi
Nolan Wells went missing after attending an Independence Day gathering on Horn Island, a barrier island off the Mississippi Gulf Coast, with a group of
Death_of_Nolan_Wells
Facial disorder due to damage of the sympathetic nerves
Horner's syndrome, also known as oculosympathetic paresis, is a combination of symptoms that arises when a group of nerves known as the sympathetic trunk
Horner's_syndrome
Higham 2008, pp. 26–27. Horn & Johnson 1991, p. 403. Lancaster & Tismenetsky 1985, sec. 9.5 & 9.6. Higham, Nicholas J. (2008). Functions of Matrices: Theory
Frobenius_covariant
Hungarian politician (1932–2013)
Institute (SIPRI). He also functioned as one of the vice presidents of the Socialist International from 1996 to 2003. Horn led the Socialists to a comprehensive
Gyula_Horn
contemporary instruments which evolved from signal instruments, such as the natural horn evolving to the trumpet. The oldest musical signaling instrument is the drum
Signal_instrument
Supernatural animal
purity. In the King James Bible, Psalm 92:10 states, "My horn shalt thou exalt like the horn of a unicorn." This is because the translators of the King
Legendary_creature
Genus of ceratopsian dinosaurs
centimeters (2 feet) long and 15 centimeters (6 inches) wide. The function or functions of the horns and frills have been debated for many years. Styracosaurus
Styracosaurus
Rare neurodegenerative disease
been linked to inhibited motor function and ability, as well as a decreased capacity for affected organisms to function and perform physical behaviors
ALS
Subfamily of beetles
rhinoceros-like horns. Other common names – some for particular groups of rhinoceros beetles – include Hercules beetles, unicorn beetles or horn beetles. Over
Dynastinae
Papilloma virus which infects certain leporids
species of rabbit and hare, causing cancerous lesions (carcinomas) resembling horns, typically on or near the animal's head. The carcinomas can metastasize
Shope_papilloma_virus
Species of harvestmen
Ecuador. It is notable for its horn-like projections on its prosoma, noted to resemble "rabbit ears". Their function, along with other details about
Neokayania_bicolumnata
Type of loudspeaker
driver. Hanna, C. R.; Slepian, J. (September 1977) [1924]. "The Function and Design of Horns for Loudspeakers (Reprint)". Journal of the Audio Engineering
Compression_driver
Informal currency transfer system
throughout the world, they are primarily located in West Asia, North Africa, the Horn of Africa and the Indian subcontinent. Hawala usually follows Islamic traditions
Hawala
Country in Northwestern Europe
a constant evolution of role and function. Local government in England is complex, with the distribution of functions varying according to local arrangements
United_Kingdom
Czech-born South African poet (1934–2019)
meditation on the nature and function of poetry in a society riven by violence, injustice and exploitation. In these elegies, Horn re-examines the basis of
Peter_Horn_(poet)
Angel in Abrahamic religions
name as "the strength of God" (Latin: Fortitudo Dei), and his symbolic function in the gospel story as announcement of the strength or virtue of Christ
Gabriel
Country in South Asia
ISBN 978-1-108-17351-3. Quote: "The last of the centaurs has the long, wavy, horizontal horns of a markhor, a human face, a heavy-set body that appears bovine, and a
India
Capital of the Byzantine Empire
its takeover by the Ottoman Empire in 1453. After this, it continued to function as the Ottoman capital until the abolition of the Ottoman sultanate in
Constantinople
Psychological theory
The Cattell–Horn–Carroll theory (commonly abbreviated to CHC), is a psychological theory on the structure of human cognitive abilities. Based on the work
Cattell–Horn–Carroll_theory
American singer and songwriter (born 1958)
multimedia elements, advanced technology, and elaborate sound design, function as "extravagant show piece[s]" and "walking art show[s]". Chris Nelson
Madonna
Loudspeaker
12-inch speaker driver. It functions as a mobile audio input station to project audio content a distance of one kilometre. Horn Massive is a monophonic sound
Horn_Massive
The Concerto for English Horn and Orchestra is a composition for solo English horn and orchestra by the American composer Ned Rorem. The work was commissioned
English_Horn_Concerto_(Rorem)
Property of a mathematical matrix
Horn & Johnson (2013), p. 440, Theorem 7.2.7 Horn & Johnson (2013), p. 441, Theorem 7.2.10 Horn & Johnson (2013), p. 452, Theorem 7.3.11 Horn & Johnson
Definite_matrix
Human protein-coding gene
estrogen receptor α, and PARP1. This methylation affects the stability and function of target proteins and hence is able to regulate a significant number of
SMYD2
One of three columns of grey matter in the spinal cord
The lateral grey column (lateral column, lateral cornu, lateral horn of spinal cord, intermediolateral column) is one of the three grey columns of the
Lateral_grey_column
Genus of dinosaur from the Late Cretaceous period
theropod, Carnotaurus was highly specialized and distinctive. It had two thick horns above the eyes, a unique feature unseen in all other carnivorous dinosaurs
Carnotaurus
Archipelagic country in Southeast Asia
lead?". The Washington Post. Archived from the original on May 5, 2022. Horner, Lindsey K. (March 14, 2024). "Oscillating between populism and liberalism
Philippines
Eleven monolithic churches found in Lalibela, Amhara Region, Ethiopia
Africa Institute. Taddesse, Tamrat (1977). "Ethiopia, the Red Sea and the Horn". The Cambridge History of Africa: Volume 3 (PDF). pp. 98–182. doi:10
Rock-Hewn_Churches,_Lalibela
German visual artist (1944–2024)
and 1980s Horn continued to explore the image of feathers. Many of her feathered pieces wrap a figure in the manner of a cocoon, or function as masks or
Rebecca_Horn
Authenticated encryption mode for block ciphers
X_{i}} depends on X i − 1 {\displaystyle X_{i-1}} ) produced by applying Horner's method to the first. Only the final X m + n + 1 {\displaystyle X_{m+n+1}}
Galois/Counter_Mode
Extinct genus of amphibians
anatomy of Diplocaulus. Douthitt argued that the most undisputed function was that the horns acted as a counterweight to offset the heavily-built forward
Diplocaulus
American mathematician (1893–1968)
differential equation, has had far-reaching implications in geometric function theory; it was used in the final solution of the Bieberbach conjecture
Charles_Loewner
Chinese American scholar
Yang Shao-Horn is a Chinese American scholar, Professor of Mechanical Engineering and Materials Science and Engineering and a Principal Investigator at
Yang_Shao-Horn
Hospital headquartered in Memphis, Tennessee, US
Piperton Somerville Shelby Forest Mississippi Byhalia Hernando Holly Springs Horn Lake Olive Branch Senatobia Southaven Tunica Tunica Resorts (Robinsonville)
St. Jude Children's Research Hospital
St._Jude_Children's_Research_Hospital
Arithmetic operation
exponent. For example, if f is a function whose valued can be multiplied, f∘n denotes exponentiation with respect to function composition, whereas fn may denote
Exponentiation
Zodiac constellation in the southern hemisphere
constellations of the zodiac. Its name is Latin for "horned goat" or "goat horn" or "having horns like a goat's", and it is commonly represented in the form of a
Capricornus
Former empire (c. 1299–1922)
during the Russo-Turkish War. He locked most of the fleet inside the Golden Horn, where the ships decayed for the next 30 years. Following the Young Turk
Ottoman_Empire
Australian boxer (born 1992)
defeated Jeff Horn for the WBA Oceania middleweight title in Bendigo on 31 August 2019, this time winning via technical knockout. Horn was ranked #3 by
Michael_Zerafa
Third letter of the Greek alphabet
gamma function (usually written as Γ-function) is an extension of the factorial to complex numbers In mathematics, the upper incomplete gamma function The
Gamma
German free reed instrument
several reeds, each of which having its own horn. The instrument was created in imitation of the saxhorn. The horn can be confused with the shawm, as they
Martinshorn
Mammalian protein found in humans
6530–5. doi:10.1074/jbc.M106471200. PMID 11726651. Jurkat-Rott K, Lehmann-Horn F (August 2005). "Muscle channelopathies and critical points in functional
CACNA1S
British racing driver (born 1985)
how freedom allows Hamilton to function at his best. Figures in the sport, such as Emerson Fittipaldi and Christian Horner, have voiced their support for
Lewis_Hamilton
Prime Minister of Poland (2007–2014; since 2023)
While in office, Tusk changed his views on the role of taxation in the functioning of the state and his government never cut any taxes. Instead, it raised
Donald_Tusk
3D imaging technique
single image is known as shape from shading, and was analyzed by B. K. P. Horn in 1989. Photometric stereo has since been generalized to many other situations
Photometric_stereo
travel, tourism, insurance
HORN FUNCTION
HORN FUNCTION
Male
English
Variant spelling of English Lorne, of unknown LORN means.
Surname or Lastname
English
English : variant of Herd.Respelling of Swedish HÃ¥rd (see Hard 2).
Surname or Lastname
English
English : nickname from Old English corn, a metathesized form of cran ‘crane’ (see Crane).English : from Middle English corn ‘grain’, applied as a metonymic occupational name for a grain merchant or grower, or possibly a miller.English : metonymic occupational name for a maker or user of hand mills, Old English cweorn.Altered spelling of German Korn or a shortened form of any of the composite names formed with this element.
Female
Egyptian
, the mother of Hor-naskht.
Surname or Lastname
English
English : variant spelling of Hearn 4.
Boy/Male
English
Mythical hunter.
Surname or Lastname
English
English : variant spelling of Bourne.North German, Danish, and Dutch : from Middle Low German born ‘well’, ‘spring’, a topographic name for someone who lived beside a well or spring, or a habitational name from a place named with this word.
Girl/Female
Norse
Fate.
Surname or Lastname
English
English : variant of Hearn 4.
Boy/Male
English
From the thom tree.
Boy/Male
Scandinavian
Surname or Lastname
South German and Austrian
South German and Austrian : variant of Hardt 1.English : variant of Hart 1.
Boy/Male
English
Town of thorns. Thornton variant. Surname.
Surname or Lastname
English and Irish
English and Irish : variant spelling of Hearn.
Surname or Lastname
English, Scottish, German, and Dutch
English, Scottish, German, and Dutch : from Middle English, Middle High German, Middle Dutch horn ‘horn’, applied in a variety of senses: as a metonymic occupational name for someone who made small articles, such as combs, spoons, and window lights, out of horn; as a metonymic occupational name for someone who played a musical instrument made from the horn of an animal; as a topographic name for someone who lived by a horn-shaped spur of a hill or tongue of land in a bend of a river, or a habitational name from any of the places named with this element (for example, in England, Horne in Surrey on a spur of a hill and Horn in Rutland in a bend of a river); as a nickname, perhaps referring to some feature of a person’s physical appearance, or denoting a cuckolded husband.Norwegian : habitational name from any of several farmsteads so named, from Old Norse horn ‘horn’, ‘spur of land’.Swedish : ornamental or topographic name from horn ‘horn’, ‘spur of land’.Jewish (Ashkenazic) : presumably from German Horn ‘horn’, adopted as a surname for reasons that are not clear. It may be purely ornamental, or it may refer to the ram’s horn (Hebrew shofar) blown in the Synagogue during various ceremonies.
Boy/Male
Norse
Father of Ashjom.
Male
Egyptian
, the son of Pnei-hor.
Surname or Lastname
English, Scottish, and Dutch
English, Scottish, and Dutch : variant of Horn 1–4.Norwegian : habitational name from any of several farmsteads mostly so named from the dative singular of horn (see Horn).Swedish : variant of Horn.
Surname or Lastname
English
English : probably a variant of Hunn.
Surname or Lastname
English and Danish
English and Danish : topographic name for someone who lived by a thorn bush or hedge (Old English, Old Norse þorn). The name is also found in Sweden.English : habitational name from a place named with Old English, Old Norse þorn ‘thorn bush’ (see 1), for example Thorne in Kent, Somerset, and South Yorkshire.North German and Danish : topographic name for someone who lived near a tower, from Middle Low German torn ‘tower’.German : habitational name from the city of Thorn (Toruń in Poland), which was named with Middle High German torn ‘tower’.
HORN FUNCTION
HORN FUNCTION
HORN FUNCTION
HORN FUNCTION
HORN FUNCTION
HORN FUNCTION
HORN FUNCTION
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