Delta commonly refers to:
*
Delta (letter) (Δ or δ), a letter of the Greek alphabet
*
River delta
A river delta is a landform shaped like a triangle, created by deposition of sediment that is carried by a river and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more ra ...
, at a river mouth
*
D (
NATO phonetic alphabet
The (International) Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet, is the most widely used set of clear code words for communicating the letters of the Roman alphabet, technically a ''radiotelephonic spellin ...
: "Delta")
*
Delta Air Lines
Delta Air Lines, Inc., typically referred to as Delta, is one of the major airlines of the United States and a legacy carrier. One of the world's oldest airlines in operation, Delta is headquartered in Atlanta, Georgia. The airline, along w ...
, US
*
Delta variant
The Delta variant (B.1.617.2) was a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in India in late 2020. The Delta variant was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021. The ...
of SARS-CoV-2 that causes COVID-19
Delta may also refer to:
Places
Canada
*
Delta, British Columbia
Delta is a city in the Lower Mainland region of British Columbia, Canada, as part of Greater Vancouver. Located on the Fraser Lowland south of Fraser River's south arm, it is bordered by the city of Richmond on the Lulu Island to the north, N ...
**
Delta (electoral district)
Delta is a federal electoral district in British Columbia, Canada, that was represented in the House of Commons of Canada from 1988 to 1997 and since 2015.
History
The 1988–1997 edition of this riding was created in 1987 from parts of Fr ...
, a federal electoral district
**
Delta (provincial electoral district) Delta was the name of a provincial electoral district in the Canadian province of British Columbia based on the municipality of Delta at the mouth of the Fraser River between the city of Vancouver and the US border. It made its first appearance ...
*
Delta, Ontario
Delta, Ontario, is a community in the Township of Rideau Lakes, Leeds and Grenville County in Eastern Ontario. The village is located between two lakes, Upper Beverley and Lower Beverley, along highway 42, approximately 15 kilometres west of A ...
United States
*
Mississippi Delta
*
Delta, Alabama
Delta is a census-designated place and unincorporated community in Clay County, Alabama, United States. Its population was 260 as of the 2020 census.
Geography Climate
The climate in Delta is characterized by hot, humid summers and generally mil ...
*
Delta Junction, Alaska
Delta Junction ( uk, Делта-Джанкшен, Delta Dzhankshen) is a city in the Southeast Fairbanks Census Area, Alaska, United States. As of the 2010 census, the population was 958, up from 840 in 2000. The 2018 estimate was down to 931. ...
*
Delta, Colorado
*
Delta, Illinois
*
Delta, Iowa
*
Delta, Kentucky
*
Delta, Louisiana
Delta is a village in Madison Parish, Louisiana, United States. The population was 239 at the 2000 census. It is part of the Tallulah Micropolitan Statistical Area.
As the birthplace of African-American entrepreneur Madam C.J. Walker, the fir ...
*
Delta, Missouri
*
Delta, North Carolina
*
Delta, Ohio
Delta is a village in Fulton County, Ohio, United States. The population was 3,103 at the 2010 census.
History
The first settlement at Delta was made in the 1830s. A post office called Delta has been in operation since 1837. The village was incor ...
*
Delta, Pennsylvania
*
Sacramento–San Joaquin River Delta
The Sacramento–San Joaquin River Delta, or California Delta, is an expansive inland river delta and estuary in Northern California. The Delta is formed at the western edge of the Central Valley by the confluence of the Sacramento and San ...
, California
*
Delta, Utah
*
Delta, Wisconsin, a town
*
Delta (community), Wisconsin
*
Delta County (disambiguation)
Elsewhere
*
Delta Island, Antarctica
*
Delta Stream, Antarctica
*
Delta, Minas Gerais, Brazil
*
Nile Delta, Egypt
*
Delta, Thessaloniki, Greece
*
Delta State, Nigeria
*
Delta, Astrakhan Oblast, Russia
*
Colonia Delta
Colonia Delta is a Mennonite agricultural settlement in San José Department, Uruguay. It is located 97 km west of Montevideo, near the Arroyo Pavón, not far from Route 1 (Uruguay), Route 1.
Established in 1955 by Vistula delta Mennonites wh ...
, Uruguay
Arts and entertainment
Fictional characters
* Delta Megazord, a zord in ''
Power Rangers in Space
''Power Rangers in Space'' is a television series and the sixth season of the ''Power Rangers'' franchise, based on the 21st Super Sentai series '' Denji Sentai Megaranger''.
''In Space'' was a turning point for the Power Rangers franchise, as th ...
''
* Deltas, a working class in Aldous Huxley's ''
Brave New World
''Brave New World'' is a dystopian novel by English author Aldous Huxley, written in 1931 and published in 1932. Largely set in a futuristic World State, whose citizens are environmentally engineered into an intelligence-based social hiera ...
''
Film and television
*
''Delta'' (2008 film), Hungary
*
''Delta'' (American TV series), 1992
*
Delta (Australian TV series)
''Delta'' is a 1969 Australian TV series, produced and broadcast by ABC-TV in 1969-70. The title is the name of the fictional independent research organisation featured in the series, a freelance scientific consultancy which is called in to pr ...
, 1969
* ''
Macross Delta
is a science fiction anime television series that aired on Tokyo MX in Japan from April 3, 2016, to September 25, 2016. The fourth television series set in the ''Macross'' universe, it is directed by Kenji Yasuda and written by Toshizo Nem ...
'' or Macross Δ, in the ''Macross'' anime series
Music
*
alt-J (∆), British indie band
*
Delta blues, a music style
* "Delta", a song by Crosby, Stills & Nash from ''
Daylight Again'', 1982
Albums
*
''Delta'' (video album), 2003, Delta Goodrem
*
''Delta'' (Delta Goodrem album), 2007
*
''Delta'' (Visions of Atlantis album), 2011
*
''Delta'' (Mumford & Sons album), 2018
* ''Delta'', by
Shapeshifter
In mythology, folklore and speculative fiction, shape-shifting is the ability to physically transform oneself through an inherently superhuman ability, divine intervention, demonic manipulation, sorcery, spells or having inherited the ...
, 2013
Other media
*
''Delta'' (magazine), a poetry magazine
*
''Delta'' (science magazine)
*
''Delta'' (video game), 1987
*
Delta FM or Delta Radio, a former UK radio station
Businesses and organizations
Companies
*
Delta Air Lines
Delta Air Lines, Inc., typically referred to as Delta, is one of the major airlines of the United States and a legacy carrier. One of the world's oldest airlines in operation, Delta is headquartered in Atlanta, Georgia. The airline, along w ...
, US
**
Delta Connection
Delta Connection is a regional airline brand name for Delta Air Lines, under which a number of individually owned regional airlines primarily operate short- and medium-haul routes. Mainline major air carriers often use regional airlines to ope ...
, a Delta Air Lines brand
*
Delta Bank
Delta Bank ( uk, Дельта Банк) was one of the largest commercial banks in Ukraine. It was founded in February 2006 by Ukrainian businessman Mykola Lagun. It had its headquarters in Kyiv. Since 2006 the bank quickly increased due to consume ...
, Ukraine
*
Delta Cafés
Delta Cafés () is a Portuguese coffee roasting and coffee packaging company headquartered in Campo Maior, Alentejo. The company was founded in 1961 and is among the top market leaders in the Iberian Peninsula. The company belongs to Rui Nabe ...
, a Portuguese coffee company
*
Delta Electric Company
The Delta Electric Company was an American electronics manufacturer formed in 1913 in Marion, Indiana that produced lanterns, flashlights, automotive and bicycle lighting, battery tubes, horns, horn buttons, light switches, other battery-powere ...
*
Delta Electricity
Delta Electricity is an electricity generation company in Australia. The company was formed by the Government of New South Wales in 1996 as part of its reform of the electricity sector in the State, which saw the breakup of the Electricity Commi ...
, Australia
*
Delta Electronics
Delta Electronics, Inc. (also known as DELTA or Delta Electronics), is a Taiwanese electronics manufacturing company. Its headquarters are in Neihu, Taipei. It is known for its DC industrial and computer fans and for switching power supplies. T ...
, Taiwan
*
Delta Faucet Company
Delta Faucet Company is an American manufacturer of plumbing fixtures. It is a subsidiary of Masco Corporation. It manufactures and markets faucets, bath/shower fixtures, and toilets under the mainstream Delta, economy Peerless, and luxury Br ...
*
Delta Holding
Delta Holding is a Serbian holding company with the headquarters in Belgrade. Delta Holding performs a variety of services, such as agribusiness, real estate and wholesale. It employs around 3,600 people, making it one of the largest non-governmen ...
, a Serbian corporation
*
Delta Hotels
Delta Hotels by Marriott is a four-star brand of hotels and resorts located primarily in North America.
Canadian institution Beginnings
In June 1962, William Pattison and his business partners opened the 68-room Delport Inn in Richmond, BC. Tha ...
, Canada
*
Delta Machinery
Delta Power Equipment Corp. designs, manufactures and distributes power woodworking tools under the Delta Machinery brand.
History
Delta traces its roots to the Delta Specialty Company founded by Herbert Tautz in 1919 in Milwaukee, Wisconsin. Bas ...
, a tool company
*
Delta Motor Corporation
Delta Motor Corporation was a South African car manufacturer, which was created through a management buy-out after General Motors (GM) divested from South Africa in 1986. It was headed by former GM executive, Bob Price, who had returned to South A ...
, South Africa
* Former
Delta Motors Corporation
Delta Motor Corporation was an automobile company from the Philippines established by Ricardo C. Silverio, Sr. It operated under a technical tie-up with Toyota Motor Corporation of Japan,Doner, p. 43 but also produced its own range of small off-r ...
, Philippines
*
DELTA (Dutch cable operator)
Delta commonly refers to:
* Delta (letter) (Δ or δ), a letter of the Greek alphabet
* River delta, at a river mouth
* D (NATO phonetic alphabet: "Delta")
* Delta Air Lines, US
* Delta variant of SARS-CoV-2 that causes COVID-19
Delta may also re ...
Schools
*
Delta State (disambiguation)
Delta State is a state in southern Nigeria.
Delta State may also refer to:
*Delta State (TV series), ''Delta State'' (TV series), a Canadian animated television series
*Delta State University, a university in Cleveland, Mississippi, US
*Delta Sta ...
, several universities
*
Delta College (disambiguation)
*
Delta Academy (disambiguation)
*
Delta Secondary School (disambiguation) Delta Secondary School may refer to:
* Delta Secondary School (Hamilton, Ontario) in Hamilton, Ontario, Canada
*Delta Secondary School, Warri in Delta, Nigeria
* Delta Secondary School (Delta, British Columbia) in Delta, British Columbia, Canada
*D ...
*
Delta High School (disambiguation)
*
Delta School District (disambiguation) Delta School District or Delta School Board may refer to:
* School District 37 Delta, in British Columbia, Canada
* Delta/Greely School District, in Delta Junction, Alaska, USA
* KIPP: Delta Public Schools, a school district in Helena–West Hele ...
*
Delta Career Education Corporation
Delta Career Education Corporation was a Virginia-based for-profit institution of higher learning that declared bankruptcy in 2018. Twenty one of its campuses were sold to Ancora Education. It was a wholly owned subsidiary of Gryphon Investors, ...
, US
*
Delta International University of New Orleans, Louisiana, US
*
Delta Schools
Delta Schools ( ar, مدارس دلتا) is a private school located in Riyadh, Saudi Arabia. Established in 1999, the school operates on a campus that serves from primary school to secondary school for males and females. The school is accredi ...
, Riyadh, Saudi Arabia
Law enforcement
*
Delta (Norwegian police unit)
Military
*
Delta Force
The 1st Special Forces Operational Detachment–Delta (1st SFOD-D), referred to variously as Delta Force, Combat Applications Group (CAG), Army Compartmented Elements (ACE), "The Unit", or within Joint Special Operations Command (JSOC), Task Fo ...
, U.S. Army special operations
*
Space Force Delta
The Space Force Delta is the official logo of the U.S. Space Force, the space warfare service branch of the U.S. Armed Forces. The delta itself was unveiled on 22 July 2020.
Symbolism
* First used in 1961, the Delta symbol honors the heritage ...
, US Space Force logo
* Delta, a command echelon in the
structure of the United States Space Force
The United States Space Force is organized by different units: the Space Staff, the field commands, and the space deltas.
The Space Force is organized as one of two coequal military service branches within the Department of the Air Force, the o ...
Other organizations
*
STC Delta
, type = State-owned enterprise
, industry = Defense
, founded =
, founder =
, hq_location_city = Tbilisi
, hq_location_country = Georgia
, area_served = Worldwide
, key_people ...
, a Georgian R&D center
*
American Delta Party
Rocky De La Fuente ran a third-party campaign for the presidency of the United States in the 2016 United States presidential election, 2016 election. De La Fuente had sought the Democratic Party (United States), Democratic Party's nomination duri ...
, an American political party
*
San Francisco Deltas, a soccer team
*
Delta Omicron
Delta Omicron () is a co-ed international professional music honors fraternity whose mission is to promote and support excellence in music and musicianship.
History
Delta Omicron International Music Fraternity was founded on September 6, 1909 at ...
, a music fraternity
Finance
*
Delta (finance)
In mathematical finance, the Greeks are the quantities representing the sensitivity of the price of derivatives such as options to a change in underlying parameters on which the value of an instrument or portfolio of financial instruments is de ...
, rate of change of a value
*
Visa Delta or Visa Debit, a debit card
People
* Δ, signature of
David Macbeth Moir
David Macbeth Moir (5 January 17986 July 1851) was a Scottish physician and writer.
Biography
Moir was born at Musselburgh on 5 January 1798, the son of Elizabeth Macbeth (1767–1842) and Robert Moir (''d''. 1842). He was educated at Muss ...
(1798–1851), Scottish physician and writer
*
Delta Burke
Delta Ramona Leah Burke (born July 30, 1956) is an American actress, producer, and author. From 1986 to 1991, she starred as Suzanne Sugarbaker in the CBS sitcom ''Designing Women'', for which she was nominated for two Emmy Awards for Outstan ...
(born 1956), American actress
*
Delta Goodrem (born 1984), Australian singer
*
Delta Work
Delta Work is the stage name of Gabriel A. Villarreal, a Mexican-American drag performer and stylist, best known for competing on the third season of the reality competition television series '' RuPaul's Drag Race''.
Villarreal received the ...
, drag queen
*
Penelope Delta (1874–1941), Greek author
*
Delta (wrestler)
Delta (born August 27, 1985) is a Mexican '' Luchador'' '' enmascarado'', or masked professional wrestler currently working for the Mexico City based professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL). Delta's real name is not ...
(born 1985), Mexican
Science, technology, and mathematics
* The upper- and lower-case Greek letter
delta
Delta commonly refers to:
* Delta (letter) (Δ or δ), a letter of the Greek alphabet
* River delta, at a river mouth
* D ( NATO phonetic alphabet: "Delta")
* Delta Air Lines, US
* Delta variant of SARS-CoV-2 that causes COVID-19
Delta may also ...
(Δ, δ) are used in many fields to denote a difference in some parameter
Chemistry
* Δ (delta), right-handed isomer in a
coordination complex
A coordination complex consists of a central atom or ion, which is usually metallic and is called the ''coordination centre'', and a surrounding array of bound molecules or ions, that are in turn known as '' ligands'' or complexing agents. ...
*
Delta convention, for designating allenes
* Δ is used to specify certain
fatty acids
In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with an aliphatic chain, which is either saturated and unsaturated compounds#Organic chemistry, saturated or unsaturated. Most naturally occurring fatty acids have an B ...
Computing
*
Delta (computer)
The following is a list of clones of Sinclair Research's ZX Spectrum home computer. This list includes both official clones (from Timex Corporation) and many unofficial clones, most of which were produced in Eastern Bloc countries. The list doe ...
, a Russian ZX Spectrum clone
*
Delta encoding
Delta encoding is a way of storing or transmitting data in the form of '' differences'' (deltas) between sequential data rather than complete files; more generally this is known as data differencing. Delta encoding is sometimes called delta compre ...
or delta compression, in computer communications
*
Delta timing, in relation to hardware and network responsiveness
* DELTA, an
OpenVMS debugger
Earth sciences
*
Epicentral distance
The epicenter, epicentre () or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates.
Surface damage
Before the instrumental pe ...
(Δ)
*
Subtropical Storm Delta (1972)
The 1972 Atlantic hurricane season was a significantly below average season, having only seven named storms, four fully tropical storms (the fewest since 1930) and three subtropical storms. It officially began on June 1, 1972, and lasted u ...
, Atlantic
*
Tropical Storm Delta (2005), Atlantic
*
Hurricane Delta (2020), Atlantic
Mathematics
* Δ, a difference of state between two before and after state schemas in the
Z notation
The Z notation is a formal specification language used for describing and modelling computing systems. It is targeted at the clear specification of computer programs and computer-based systems in general.
History
In 1974, Jean-Raymond Abria ...
*
, the first
Feigenbaum constant
In mathematics, specifically bifurcation theory, the Feigenbaum constants are two mathematical constants which both express ratios in a bifurcation diagram for a non-linear map. They are named after the physicist Mitchell J. Feigenbaum.
Hist ...
* Delta connective, a unary connective in
t-norm fuzzy logics
*
Delta method
In statistics, the delta method is a result concerning the approximate probability distribution for a function of an asymptotically normal statistical estimator from knowledge of the limiting variance of that estimator.
History
The delta meth ...
for approximating the distribution of a function
*
Difference operator
In mathematics, a recurrence relation is an equation according to which the nth term of a sequence of numbers is equal to some combination of the previous terms. Often, only k previous terms of the sequence appear in the equation, for a parameter ...
(Δ)
*
Dirac delta function ( function)
*
Kronecker delta
In mathematics, the Kronecker delta (named after Leopold Kronecker) is a function of two variables, usually just non-negative integers. The function is 1 if the variables are equal, and 0 otherwise:
\delta_ = \begin
0 &\text i \neq j, \\
1 & ...
(
)
*
Laplace operator (Δ)
*
Modular discriminant
In mathematics, the Weierstrass elliptic functions are elliptic functions that take a particularly simple form. They are named for Karl Weierstrass. This class of functions are also referred to as ℘-functions and they are usually denoted by the ...
(Δ)
*
Symmetric difference
In mathematics, the symmetric difference of two sets, also known as the disjunctive union, is the set of elements which are in either of the sets, but not in their intersection. For example, the symmetric difference of the sets \ and \ is \.
Th ...
(Δ)
* Non-inferiority margin (δ)
* Δ, a class of sets in the
analytical hierarchy
In mathematical logic and descriptive set theory, the analytical hierarchy is an extension of the arithmetical hierarchy. The analytical hierarchy of formulas includes formulas in the language of second-order arithmetic, which can have quantifiers ...
, for every natural number ''m'', ''n''
Medicine and biology
*
Delta (ligand), an activator of the notch signaling pathway
*
DELTA (taxonomy) DELTA (DEscription Language for TAxonomy) is a data format used in taxonomy for recording descriptions of living things. It is designed for computer processing, allowing the generation of identification keys, diagnosis, etc.
It is widely accepted ...
, a data format for descriptions of living things
*
''Delta'' (wasp), Old World genus of potter wasps
*
''Delta'' (moth) genus, also ''Campydelta''
*
Delta variant
The Delta variant (B.1.617.2) was a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in India in late 2020. The Delta variant was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021. The ...
of SARS-CoV-2 that causes COVID-19
*
Delta wave
Delta waves are high amplitude neural oscillations with a frequency between 0.5 and 4 hertz. Delta waves, like other brain waves, can be recorded with electroencephalography (EEG) and are usually associated with the deep stage 3 of NREM sleep, ...
, a brain wave
Vehicles
*
Delta (rocket family)
Delta is an American versatile family of expendable launch systems that has provided space launch capability in the United States since 1960. Japan also launched license-built derivatives ( N-I, N-II, and H-I) from 1975 to 1992. More than 300 ...
* Delta, a
tricycle
A tricycle, sometimes abbreviated to trike, is a human-powered (or gasoline or electric motor powered or assisted, or gravity powered) three-wheeled vehicle.
Some tricycles, such as cycle rickshaws (for passenger transport) and freight trikes ...
layout
*
Daihatsu Delta, trucks
*
Delta formation
Delta formation is a flight pattern where multiple flying objects will come together in a V in order to fly more efficiently. Each trailing object is positioned slightly higher than the one in front, and uses the air moved by the forward object t ...
, V-shaped aircraft formation
*
Delta wing, a triangular aircraft wing
*
''Delta''-class submarine (NATO reporting name), Soviet/Russian SSBN
*
GM Delta platform
Delta was a General Motors compact front-wheel drive automobile and crossover SUV platform, originally developed by Opel Group. Delta was a successor to the Opel T platform; it also replaced J platform and the Z platform used by the Saturn ...
, a car platform
*
Lancia Delta
The Lancia Delta is a small family car produced by Italian automobile manufacturer Lancia in three generations. The first generation (1979-1994) debuted at the 1979 Frankfurt Motor Show, the second generation (1993-1999) debuted at the 1993 Gene ...
, an Italian rally car
*
Oldsmobile Delta 88
The Oldsmobile 88 (marketed from 1989 on as the Eighty Eight) is a full-size car that was sold and produced by Oldsmobile from 1949 until 1999. From 1950 until 1974, the 88 was the division's most profitable line, particularly the entry level mod ...
, a GM 1965–1983
*
TrikeBuggy Delta
The TrikeBuggy Delta, Bullet and Transformer are a family of American ultralight trikes and powered parachutes, designed and produced by TrikeBuggy of Santa Barbara, California. The aircraft is supplied complete and ready-to-fly.Bayerl, Robby; Ma ...
, an American ultralight trike
Other uses in science and technology
* Refractory delta, in the roof of an
electric arc furnace
An electric arc furnace (EAF) is a furnace that heats material by means of an electric arc.
Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to ...
* Delta, a quadra group used in
socionics
Socionics, in psychology and sociology, is a pseudoscientific theory of information processing and personality types. It incorporates Carl Jung's work on '' Psychological Types'' with Antoni Kępiński's theory of information metabolism. Socio ...
*
Delta baryon
The Delta baryons (or baryons, also called Delta resonances) are a family of subatomic particle made of three up or down quarks (u or d quarks), the same constituent quarks that make up the more familiar protons and neutrons.
Properties
Four c ...
, a subatomic particle
* Delta circuit, in
three-phase electric power
Three-phase electric power (abbreviated 3φ) is a common type of alternating current used in electricity generation, transmission, and distribution. It is a type of polyphase system employing three wires (or four including an optional neutral ...
*
Delta robot
A delta robot is a type of parallel robot that consists of three arms connected to universal joints at the base. The key design feature is the use of parallelograms in the arms, which maintains the orientation of the end effector. In contrast ...
, a delta-shaped parallel robot
*
Ilford Delta
Ilford Delta is a series of photographic films manufactured by Harman Technology Limited. Delta films are tabular-grain black-and-white films, and originally released in 400 ISO only to compete with Kodak's T-Max film.
Ilford recommends Del ...
, a photographic film
Sport
*
Delta (horse)
Delta (1946–1960) was a champion Australian thoroughbred racehorse who raced from a two-year-old to a six year-old from distances of 6 furlongs to 2 miles. Champion jockey Neville Sellwood won 22 races including the 1949 VRC Derby, 1949 C ...
(1946–1960), Australia
*
Mississippi Valley State Delta Devils and Devilettes
The Mississippi Valley State Delta Devils and Devilettes (also MVSU and Mississippi Valley) represent Mississippi Valley State University in Itta Bena, Mississippi in intercollegiate athletics. They field thirteen teams including men and women's ...
, sports teams, Itta Bena, Mississippi, US
*
San Francisco Deltas, a soccer team
*
Delta (orienteering club), a former Finnish club
Other uses
*
Delta Dental
The Delta Dental Plans Association is a network of dental insurance companies composed of 39 independent Delta Dental members operating in all 50 states, the District of Columbia and Puerto Rico. These member companies provide coverage to 85 mill ...
, an American system
*
Delta Works
The Delta Works ( nl, Deltawerken) is a series of construction projects in the southwest of the Netherlands to protect a large area of land around the Rhine–Meuse–Scheldt delta from the sea. Constructed between 1954 and 1997, the works con ...
, a flood-protection works in the Netherlands
* Delta, a font designed by
Aldo Novarese
*
Diploma in Teaching English to Speakers of Other Languages
See also
*
The Delta (disambiguation)
*
Delta model Delta model (after the Greek letter Delta, standing for transformation and change) is a customer-based approach to strategic management. Compared to a philosophical focus on the characteristics of a product (product economics), the model is based on ...
, a strategic management model
*
Nabla symbol
The nabla symbol
The nabla is a triangular symbol resembling an inverted Greek delta:Indeed, it is called ( ανάδελτα) in Modern Greek. \nabla or ∇. The name comes, by reason of the symbol's shape, from the Hellenistic Greek word ...
(
), an inverted delta representing del, a vector differential operator
*
Kronecker delta
In mathematics, the Kronecker delta (named after Leopold Kronecker) is a function of two variables, usually just non-negative integers. The function is 1 if the variables are equal, and 0 otherwise:
\delta_ = \begin
0 &\text i \neq j, \\
1 & ...
(
), a function
*
Dirac delta
In mathematics, the Dirac delta distribution ( distribution), also known as the unit impulse, is a generalized function or distribution (mathematics), distribution over the real numbers, whose value is zero everywhere except at zero, and who ...
(
), a function
*
, represents a
triangle
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices ''A'', ''B'', and ''C'' is denoted \triangle ABC.
In Euclidean geometry, any three points, when non- colline ...
defined by points A, B and C
*
(ε, δ)-definition of limit
Although the function (sin ''x'')/''x'' is not defined at zero, as ''x'' becomes closer and closer to zero, (sin ''x'')/''x'' becomes arbitrarily close to 1. In other words, the limit of (sin ''x'')/''x'', as ''x'' approaches z ...
*
(%CH), a percentage change operation found on some calculators
*
, a classification in the
arithmetical hierarchy
In mathematical logic, the arithmetical hierarchy, arithmetic hierarchy or Kleene–Mostowski hierarchy (after mathematicians Stephen Cole Kleene and Andrzej Mostowski) classifies certain sets based on the complexity of formulas that define th ...
*
, a classification in the
analytical hierarchy
In mathematical logic and descriptive set theory, the analytical hierarchy is an extension of the arithmetical hierarchy. The analytical hierarchy of formulas includes formulas in the language of second-order arithmetic, which can have quantifiers ...
*
, a classification in the
polynomial hierarchy
In computational complexity theory, the polynomial hierarchy (sometimes called the polynomial-time hierarchy) is a hierarchy of complexity classes that generalize the classes NP and co-NP. Each class in the hierarchy is contained within PSPACE. ...
*
''δ''13C, a measure of the ratio of stable isotopes 13C:12C
*
''δ''15N, a measure of the ratio of stable isotopes 15N:14N
*
''δ''18O, a measure of the ratio of stable isotopes oxygen-18:oxygen-16
*
DeltaWing
The DeltaWing is a racing car designed by American race car designer and engineer Ben Bowlby and debuted at the 2012 24 Hours of Le Mans. The entry was run under the Project 56 name, composed of Ben Bowlby (design), Dan Gurney's All American R ...
, a prototype of racing car
*
High-leg delta
High-leg delta (also known as wild-leg, stinger leg, bastard leg, high-leg, orange-leg, red-leg, dog-leg delta) is a type of electrical service connection for three-phase electric power installations. It is used when both single and three-phase po ...
, a three phase electrical circuit
*
Delta Delta Delta
Delta Delta Delta (), also known as Tri Delta, is an international women's fraternity founded on November 27, 1888 at Boston University by Sarah Ida Shaw, Eleanor Dorcas Pond, Isabel Morgan Breed, and Florence Isabelle Stewart.
Tri Delta part ...
, a sorority
*
Delta function (disambiguation)
*
Task Force Delta (disambiguation)
*
Delta Force (disambiguation)
*
Delta class (disambiguation)
*
Delta 1 (disambiguation)
*
Delta 4 (disambiguation)
*
*
* and δ
* and δ
{{disambiguation, geo, given name