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"Labda" redirects here. For the mythological figure, see Labda (mythology)
Labda (mythology)

In Greek mythology, Labda was a daughter of the Bacchiad Amphion, and mother of Cypselus, by Eetion. Her name was derived from the fact of her feet being turned outward, and thus re?sembling the letter lambda , which, by the accounts of the most ancient Greek grammarians, was originally pronounced "labda," ....
.


Lambda (uppercase ?, lowercase ?; or , Lamda) is the 11th letter of the Greek alphabet
Greek alphabet

The Greek alphabet is a set of twenty-four letters that has been used to write the Greek language since the late 9th century BC or early 8th century BCE....
. In the system of Greek numerals
Greek numerals

Greek numerals are a numeral system using letters of the Greek alphabet. They are also known by the names Milesian numerals, Alexandrian numerals, or alphabetic numerals....
 it has a value of 30. It was derived from the Phoenician letter
Phoenician alphabet

The Phoenician alphabet is a continuation of the Proto-Canaanite alphabet, by convention taken to originate around 1050 BC. It was used for the writing of Phoenician language, a Northern Semitic languages language, used by the civilization of Phoenicia....
 Lamed .






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"Labda" redirects here. For the mythological figure, see Labda (mythology)
Labda (mythology)

In Greek mythology, Labda was a daughter of the Bacchiad Amphion, and mother of Cypselus, by Eetion. Her name was derived from the fact of her feet being turned outward, and thus re?sembling the letter lambda , which, by the accounts of the most ancient Greek grammarians, was originally pronounced "labda," ....
.


Lambda (uppercase ?, lowercase ?; or , Lamda) is the 11th letter of the Greek alphabet
Greek alphabet

The Greek alphabet is a set of twenty-four letters that has been used to write the Greek language since the late 9th century BC or early 8th century BCE....
. In the system of Greek numerals
Greek numerals

Greek numerals are a numeral system using letters of the Greek alphabet. They are also known by the names Milesian numerals, Alexandrian numerals, or alphabetic numerals....
 it has a value of 30. It was derived from the Phoenician letter
Phoenician alphabet

The Phoenician alphabet is a continuation of the Proto-Canaanite alphabet, by convention taken to originate around 1050 BC. It was used for the writing of Phoenician language, a Northern Semitic languages language, used by the civilization of Phoenicia....
 Lamed
Phoenician Lamedh
. Letters that arose from Lambda include the Roman L
L

L or l, described in English language as L with stroke, is a letter of the Polish alphabet, Kashubian alphabet, Sorbian alphabet, Lacinka alphabet , Wymysorys, Navajo language, Dene Suline language, Inupiaq language and Dogrib language alphabets, and of several proposed alphabets for the Venetian language....
 and the Cyrillic letter El
El (Cyrillic)

eading=Cyrillic letter El|Image=...
 (?, ?). The ancient Grammarians and dramatists attest to a pronunciation of in classical times. In Modern Greek
Modern Greek

Modern Greek refers the varieties of Greek spoken in the modern era. The beginning of the "modern" period of the language is often symbolically assigned to the fall of the Byzantine Empire in 1453, even though that date marks no clear linguistic boundary and many characteristic modern features of the language had been present centuries earli...
 the name of the letter, ??µda, is pronounced ; the letter itself is pronounced as with Latin L.

In early Greek alphabets, the shape and orientation of lambda varied. Most variants consisted of two straight strokes, one longer than the other, connected at their ends. The angle might be in the upper left, lower left ("Western" alphabets), or top ("Eastern" alphabets). Other variants had a vertical line with a horizontal or sloped stroke running to the right. With the general adoption of the Ionic alphabet
History of the Greek alphabet

The History of the Greek alphabet starts with the adoption of Phoenician alphabet letter forms and continues to the present day. This article concentrates on the early period, before the codification of the now-standard Greek alphabet....
, Greek settled on an angle at the top; the Romans, borrowing from Western alphabets, put the angle at the lower left.

Symbol


Upper-case letter ?

  • The lambda particle
    Lambda particle

    In particle physics, Lambda baryons are baryons containing an up quark, a down quark, and a third quark, either a strange quark , a charm quark or a bottom quark ....
    s in particle physics
    Particle physics

    Particle physics is a branch of physics that studies the elementary particle constituents of matter and radiation, and the interactions between them....
    .
  • The set of logical axioms in the axiomatic method of logical deduction in first-order logic
    First-order logic

    First-order logic is a formal deductive system used in mathematics, philosophy, linguistics, and computer science. It goes by many names, including: first-order predicate calculus , the lower predicate calculus, the language of first-order logic or predicate logic....
    .
  • Used as a shield pattern by the Sparta
    Sparta

    Sparta was a city-state in ancient Greece, situated on the Eurotas River in the southern part of the Peloponnese. From circa 650 BC it rose to become the dominant military power in the region and as such was recognized as the overall leader of the combined Greek forces during the Greco-Persian Wars....
    n army; it stood for Lakedaimon, the name of the region.
  • The von Mangoldt function
    Von Mangoldt function

    In mathematics, the von Mangoldt function is an arithmetic function named after Germany mathematician Hans Carl Friedrich von Mangoldt....
     in number theory
    Number theory

    Number theory is the branch of pure mathematics concerned with the properties of numbers in general, and integers in particular, as well as the wider classes of problems that arise from their study....
    .
  • In statistics
    Statistics

    Statistics is a Mathematics pertaining to the collection, analysis, interpretation or explanation, and presentation of data. It also provides tools for prediction and forecasting based on data....
    , Wilks' lambda is used in multivariate analysis of variance (MANOVA
    MANOVA

    Multivariate analysis of variance is a generalized form of analysis of variance methods to cover cases where there is more than one dependent variable and where the dependent variables cannot simply be combined....
    ) to compare group means on a combination of dependent variables.
  • In spectral decomposition of matrices, a diagonal matrix
    Diagonal matrix

    In linear algebra, a diagonal matrix is a square matrix in which the entries outside the main diagonal are all zero. The diagonal entries themselves may or may not be zero....
     of eigenvalues of the decomposed matrix.
  • In computer science
    Computer science

    Computer science is the study of the theoretical foundations of information and computation, and of practical techniques for their implementation and application in computer systems....
    , the time window over which a process is observed for determining the working memory set for virtual memory
    Virtual memory

    Virtual memory is a computer system technique which gives an application program the impression that it has contiguous working memory , while in fact it may be physically fragmented and may even overflow on to disk storage....
     management.
  • In astrophysics
    Astrophysics

    Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties of astronomical objects such as galaxy, stars, planets, exoplanets, and the interstellar medium, as well as their interactions....
    , the likelihood that a small body will encounter a planet or dwarf planet leading to a deflection of a particular magnitude. An object with a large value is expected to have cleared its neighborhood
    Clearing the neighbourhood

    In the end stages of Nebular hypothesis, a planet will have cleared the neighbourhood of its own Planet#Orbit, meaning it has become gravitationally dominant, and there are no other bodies of comparable size other than its own natural satellite or those otherwise under its gravitational influence....
    , satisfying the current definition of a planet
    Definition of planet

    From its beginnings denoting the "wandering stars" of the classical world, the definition of "planet" has been fraught with ambiguity. In its long life, the word has meant many different things, often simultaneously....
    .
  • In crystal optics
    Crystal optics

    Crystal optics is the branch of optics that describes the behaviour of light in anisotropic media, that is, media in which light behaves differently depending on which direction the light is propagating....
    , it is used to represent the period of a lattice.
  • In NATO
    NATO

    The North Atlantic Treaty Organization , also called the Atlantic Alliance, is a military alliance established by the signing of the North Atlantic Treaty on 4 April 1949....
     military operations, a chevron (Lambda symbol) is painted on coalition force vehicles for identification.
  • In Electrochemistry
    Electrochemistry

    Electrochemistry is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron Electrical conductor and an ionic conductor , and which involve electron transfer between the electrode and the electrolyte or species in solution....
    , denotes the Equivalent conductance of an electrolyte.
  • In cosmology
    Cosmology

    Cosmology is study of the Universe in its totality, and by extension, humanity's place in it. Though the word cosmology is recent , study of the Universe has a long history involving science, philosophy, esotericism, and religion....
    , the symbol for the cosmological constant
    Cosmological constant

    In physical cosmology, the cosmological constant was proposed by Albert Einstein as a modification of his original theory of general relativity to achieve a Einstein's universe....
    .


Lower-case letter ?

  • A non-SI
    Si

    Si, si, or SI may refer to :...
     unit of measure
    Unit of measure

    Unit of measure may refer to:* Units of measurement for relevance to weights and measures.* Unit of account for relevance in economics....
     of volume
    Volume

    The volume of any solid, liquid, plasma, vacuum or theoretical object is how much three-dimensional space it occupies, often quantified numerically....
     (symbol ?) equal to one micro
    Micro

    The term micro is a SI prefix in the SI and other systems of Units of measurements denoting a factor of 10−6 .Confirmed in 1960, the prefix comes from the Ancient Greek , meaning "small"....
    litre
    Litre

    The litre or liter is a unit of volume. There are two official symbols: the Latin letter L in lower and upper case . The lower case L is often written as a cursive l to avoid confusion with the number 1 in antiqua fonts....
     (1 µL) or one cubic milli
    Milli

    milli is a SI prefix in the SI and other systems of Units of measurements denoting a factor of 10-3, or 1/1,000 .Adopted in 1795, the prefix comes from the Latin mille, meaning one thousand ....
    metre
    Metre

    The metre or meter is a Unit of measurement of length. It is the SI base unit of length in the metric system and in the International System of Units , used around the world for general and scientific purposes....
     (1 mm³). This now-rare use is deprecated.
  • The wavelength
    Wavelength

    In physics, wavelength is the distance between repeating units of a propagating wave of a given frequency. It is commonly designated by the Greek language letter lambda ....
     of a wave in physics/radio
    Radio

    Radio is the transmission of signals, by modulation of electromagnetic radiation with frequency below those of visible light.Electromagnetic radiation radio propagation by means of oscillating electromagnetic fields that pass through the air and the vacuum of space....
     sciences
  • In physics, linear charge density
    Charge density

    The linear, surface, or volume charge density is the amount of electric charge in a line , surface, or volume. It is measured in coulombs per metre , square metre , or cubic metre , respectively....
     of a uniformly charged line(measured in C/m).
  • The radioactive decay constant
    Exponential decay

    A quantity is said to be subject to exponential decay if it decreases at a rate proportional to its value. Symbolically, this can be expressed as the following differential equation, where N is the quantity and ? is a negative and non-negative numbers called the decay constant....
     (Connected to half-life
    Half-life

    The half-life of a quantity whose value decreases with time is the interval required for the quantity to decay to half of its initial value. The concept originated in describing how long it takes atoms to undergo radioactive decay but also applies in a wide variety of other situations....
     of a radioactive isotope in physics)
    • Copyrighted symbol of Valve Software, used throughout the Half Life games.
  • The lambda phage
    Lambda phage

    Enterobacteria phage ? is a Temperate phage that infects Escherichia coli.Lambda phage is a virus particle consisting of a head, containing double-stranded linear DNA as its genetic material, and a tail that can have tail fibers....
     virus in biology
  • In mathematical logic
    Mathematical logic

    Mathematical logic is a subfield of mathematics and logic with close connections to computer science and philosophical logic. The field includes the mathematical study of logic and the applications of formal logic to other areas of mathematics....
     and computer science
    Computer science

    Computer science is the study of the theoretical foundations of information and computation, and of practical techniques for their implementation and application in computer systems....
    , used to introduce a function expression in the lambda calculus
    Lambda calculus

    In mathematical logic and computer science, lambda calculus, also written as ?-calculus, is a formal system designed to investigate function definition, function application and recursion....
    .
  • In formal language theory and computer science
    Computer science

    Computer science is the study of the theoretical foundations of information and computation, and of practical techniques for their implementation and application in computer systems....
    , the empty string
    Empty string

    In computer science and formal language theory, the empty string is the unique string of String #Formal_theory zero. It is denoted with "?" or sometimes ?....
    .
  • In telecommunications, a frequency/wavelength on a WDM
    Wavelength-division multiplexing

    In fiber-optic communications, wavelength-division multiplexing is a technology which Multiplexing multiple Optical Carrier signals on a single optical fiber by using different wavelengths of laser light to carry different signals....
     optical transport system
  • Eigenvalues in linear algebra
    Linear algebra

    Linear algebra is the branch of mathematics concerned with the study of Euclidean vectors, vector spaces , linear maps , and system of linear equations....
  • Lagrange multipliers
    Lagrange multipliers

    In mathematical optimization , the method of Lagrange multipliers provides a strategy for finding the maximum/minimum of a function subject to constraint ....
     in calculus
    Calculus

    Calculus is a branch of mathematics that includes the study of limit , derivatives, integrals, and infinite series, and constitutes a major part of modern university education....
  • Lebesgue measure
    Lebesgue measure

    In mathematics, the Lebesgue measure, named after Henri Lebesgue, is the standard way of assigning a length, area or volume to subsets of Euclidean space....
     in set theory
  • Goodman and Kruskal's lambda
    Goodman and Kruskal's lambda

    In probability theory and statistics, Goodman & Kruskal's lambda is a measure of proportional reduction in error in cross tabulation analysis. For any sample with a level of measurement#Nominal_measurement independent variable and dependent variable , it indicates the extent to which the modal categories and frequencies for each value of the...
     is a statistic
    Statistic

    A statistic is the result of applying a function to a Data set.More formally, statistical theory defines a statistic as a function of a sample where the function itself is independent of the sample's distribution: the term is used both for the function and for the value of the function on a given sample....
     that gives the proportional reduction in error when one variable's values are used to predict the values of another variable.
  • stoichiometric air to fuel ratio
    Air-fuel ratio

    Air-fuel ratio is the mass ratio of air to fuel present during combustion. When all the fuel is combined with all the free oxygen, typically within a vehicle's combustion chamber,...
     oxygen sensor
    Oxygen sensor

    An oxygen sensor, or lambda sensor, is an electronic device that measures the proportion of oxygen in the gas or liquid being analyzed. It was developed by Robert Bosch GmbH during the late 1960s under supervision by Dr....
     in an internal combustion engine
    Internal combustion engine

    The internal combustion engine is an engine in which the combustion of a fuel occurs in a combustion chamber inside and integral to the engine. In an internal combustion engine it is always the expansion of the high temperature and pressure gases that are produced by the combustion which apply force to the movable component of the engine, such as...
    's exhaust gas
  • A Japanese rocket type, Lambda (rocket)
    Lambda (rocket)

    Lambda is the name of a series of Japanese rockets. It consisted of the types Lambda 2, LS-A, LSC-3, Lambda 3, Lambda 4 and LS-C.On February 11, 1970 the first Japanese satellite Osumi was launched using a Lambda 4 rocket....
  • The failure rate
    Failure rate

    Failure rate is the frequency with which an engineered system or component failure, expressed for example in failures per hour. It is often denoted by the Greek alphabet ? and is important in reliability theory....
     in hours (also the reciprocal of MTBF) in reliability theory
    Reliability theory

    Reliability theory developed apart from the mainstream of probability and statistics. It was originally a tool to help nineteenth centuryMarine insurance and life insurance companies compute profitable rates to charge their customers....
    .
  • In criminology, the individual offending frequency.
  • In cartography and navigation, longitude
    Longitude

    Longitude , symbolized by the Greek character lambda , is the geographic coordinate most commonly used in cartography and global navigation for east-west measurement....
    .
  • Christopher Langton
    Christopher Langton

    Christopher Langton is an American biologist and one of the founders of the field of artificial life. He coined the term in the late 1980s when he organized the first "International Conference on the Synthesis and Simulation of Living Systems" at the Los Alamos National Laboratory in 1987....
    's parameter for classification Stephen Wolfram
    Stephen Wolfram

    Stephen Wolfram is a British physicist, mathematician and businessman known for his work in theoretical particle physics, cosmology, cellular automaton, complexity theory, and computer algebra....
    's classes of cellular automata
  • In Electrochemistry
    Electrochemistry

    Electrochemistry is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron Electrical conductor and an ionic conductor , and which involve electron transfer between the electrode and the electrolyte or species in solution....
     is used to denote the ionic conductance for a given ion (The ion is generally shown as a subscript to the lambda character).
  • In Neurobiology
    Neurobiology

    Neurobiology is the study of cell s of the nervous system and the organization of these cells into functional biological neural network that process information and mediate behavior....
     is the Length constant
    Length constant

    Length constant is a constant used in neurobiology signified by the Greek letter lambda .In an action potential in a neuron, the constant λ is...
     or exponential rate of decay of potential across a membrane along a length of axon.
  • In Heat Transfer
    Heat transfer

    Heat transfer is the transition of thermal energy or simply heat from a hotter object to a cooler object . When an object or fluid is at a different temperature than its thermodynamic system or another object, transfer of thermal energy, also known as heat transfer, or heat exchange, occurs in such a way that the body and the surround...
    , is used to denote the heat of vaporization per mole or latent heat.
  • In celestial and coastal Navigation Lambda (lower case) denotes longitude as opposed to the Roman L which denotes latitude.
  • Louis XIII of France used the Lambda as his personal symbol instead of a monogram
    Monogram

    A monogram is a motif made by overlapping or combining two or more letters or other graphemes to form one symbol. Monograms are often made by combining the initials of an individual or a company, used as recognizable symbols or logos....
    .
  • A symbol of the LGBT
    LGBT

    LGBT is an acronym and initialism referring collectively to Lesbian,Gay, Bisexuality, and Transgender people. In use since the 1990s, the term ?LGBT? is an adaptation of the initialism ?LGBT? which itself started replacing the phrase ?gay community? which many within LGBT communities felt did not represent accurately all those to which it...
     community, popular in the 1970s
    1970s

    The 1970s, or the Seventies was the decade that ran from January 1, 1970 to December 31, 1979.In the western world, social progressive values that began in the 1960s, such as increasing political awareness and political and economic liberty of women, continued to grow....
     and 1980s
    1980s

    The 1980s or the Eighties or the 80s or the years between the 70s and the 90s, was the decade that ran from January 1, 1980 to December 31, 1989....
    .
  • In naming in the United States, sometimes coupled after the letter A to idiosynchronously refer to the given name Amanda
  • Used with or representative of the of the Bohemian Club
    Bohemian Club

    The Bohemian Club is a prominent gentlemen's club in San Francisco, California, California, United States.Its clubhouse is located at 624 Taylor Street in San Francisco....
     at Bohemian Grove
    Bohemian Grove

    Bohemian Grove is a campground located at 20601 Bohemian Avenue, in Monte Rio, California, California, belonging to a private San Francisco-based men's art club known as the Bohemian Club....
    , referential to the pyramid with the "all-seeing" eye.
  • In Volvo
    Volvo

    The Volvo Group is a Sweden supplier of commercial vehicles such as trucks, buses and construction equipment, drive systems for marine and industrial applications, aerospace components and financial services....
     cars it is used to represent engine fuel or ignition system fault


Lambda, the word

  • In anatomy
    Anatomy

    Anatomy is a branch of biology that is the consideration of the body plan. It is a general term that includes human anatomy, animal anatomy and plant anatomy ....
    , the lambda
    Lambda (anatomy)

    The occipital angle is rounded and corresponds with the point of meeting of the Sagittal suture and lambdoidal sutures?a point which is termed the lambda ; in the fetus this part of the skull is membranous, and is called the posterior fontanelle....
     is that point on the skull
    Skull

    The skull is a bone structure found in the head of many animals. The skull supports the structures of the face and protects the head against injury....
     where the two parietal bone
    Parietal bone

    The parietal bones are bones in the human skull and form, by their union, the sides and roof of the cranium. Each bone is irregularly quadrilateral in form, and has two surfaces, four borders, and four angles....
    s and the occipital bone
    Occipital bone

    The occipital bone, a saucer-shaped membrane bone situated at the back and lower part of the skull, is trapezoid in shape and curved on itself. It is pierced by a large oval aperture, the foramen magnum, through which the cranial cavity communicates with the vertebral canal....
     come together. The configuration of the sutures resembles an upper case lambda, and the suture between each parietal bone and the occipital bone is called the lambdoid suture
    Lambdoid suture

    The lambdoid suture is a dense, fibrous connective tissue joint on the posterior aspect of the skull that connects the parietal bone and temporal bone bones with the occipital bone....
    .
  • In programming languages such as Lisp and Python
    Python (programming language)

    Python is a general-purpose high-level programming language. Its design philosophy emphasizes code readability. Python's core syntax and semantics are Minimalism , while the standard library is large and comprehensive....
    , lambda is an operator used to denote anonymous functions or closures
    Closure (computer science)

    In computer science, a closure is a function that is evaluated in an environment containing one or more bound variables. When called, the function can access these variables....
    , following lambda calculus
    Lambda calculus

    In mathematical logic and computer science, lambda calculus, also written as ?-calculus, is a formal system designed to investigate function definition, function application and recursion....
     usage.
  • The language Unlambda
    Unlambda

    Unlambda is a minimal functional programming language programming language invented by David Madore. It is based on combinatory logic, a version of the lambda calculus that omits the lambda operator....
     is a functional programming language based upon combinatory logic
    Combinatory logic

    Combinatory logic is a notation introduced by Moses Sch?nfinkel and Haskell Curry to eliminate the need for variables in mathematical logic. It has more recently been used in computer science as a theoretical model of computation and also as a basis for the design of functional programming languages....
    , a simplification of the lambda calculus
    Lambda calculus

    In mathematical logic and computer science, lambda calculus, also written as ?-calculus, is a formal system designed to investigate function definition, function application and recursion....
     that does not involve the lambda at all, hence the un- prefix.
  • An automotive oxygen sensor
    Oxygen sensor

    An oxygen sensor, or lambda sensor, is an electronic device that measures the proportion of oxygen in the gas or liquid being analyzed. It was developed by Robert Bosch GmbH during the late 1960s under supervision by Dr....
     is also known as an O2 sensor, lambda probe, lambda sensor and lambda sound
  • Lambda is used in art and photography to refer to a digital Type C print
    Type C print

    A type C print, C-print, or Kodak C-print, or Fuji C-print is a color photographic print made on negative-type color photographic paper which has at least three emulsion layers of light-sensitive silver salts....
     or the equipment used to produce it.


Lambda as a name


  • The popular science fiction
    Science fiction

    Science fiction is a broad genre of fiction that often involves speculations based on current or future science or technology. Science fiction is found in books, art, television, films, games, theatre, and other media....
     universe of Star Wars
    Star Wars

    Star Wars is an epic film space opera Media franchise initially conceived by George Lucas. The first film in the franchise was simply titled Star Wars Episode IV: A New Hope, but later had the subtitle Episode IV: A New Hope added to distinguish it from its sequels and prequels....
     uses a transport vehicle known as the Lambda-class shuttle
    Lambda-class shuttle

    Lambda-class shuttles are spacecraft in the fictional Star Wars universe. The craft appear in Star Wars Episode V: The Empire Strikes Back, Star Wars Episode VI: Return of the Jedi, and in the Star Wars Expanded Universe's book, comics, and games....
     that when viewed forward has the shape of the lowercase lambda.
  • Lambda is occasionally used in graphic design to represent stylized As. Examples include the Disney movie Atlantis: The Lost Empire
    Atlantis: The Lost Empire

    Atlantis: The Lost Empire is the 41st animated feature produced by Walt Disney Feature Animation and released by Walt Disney Pictures on June 15, 2001....
    , the logo of the band Angels & Airwaves
    Angels & Airwaves

    Angels & Airwaves is an alternative rock group fronted by Blink-182 and former Box Car Racer guitarist/vocalist Tom DeLonge. The band includes guitarist David Kennedy , notably from Over My Dead Body , Hazen Street and Box Car Racer, former Rocket From the Crypt and The Offspring drummer Atom Willard, and former 30 Seconds to Mars bassist Ma...
    , the logo of the band Dream Theater
    Dream Theater

    Dream Theater is an United States progressive metal band formed in 1985 under the name Majesty by John Myung, John Petrucci and Mike Portnoy while they attended Berklee College of Music in Boston, before they dropped out to support the band....
    , and the logo of electronics company Samsung. Conversely, the name of the band ?ucifer (pronounced lucifer) is sometimes spelt Aucifer.
  • Stargate SG-1 uses a modified upper-case lambda, with a small circle above the apex, to indicate Earth. This symbol has since become associated with the entire franchise.
  • In the Half-Life series of computer games, the 'a' in the title is replaced by the lower case lambda symbol (? is also the Roman cursive equivalent of the letter 'a'). Also, the Lambda Complex and the protagonist Gordon Freeman's suit both feature a lower-case lambda symbol. In Half-Life 2
    Half-Life 2

    Half-Life 2 is a science fiction first-person shooter Video game and the sequel to the highly acclaimed Half-Life . It was developed by Valve Corporation and was released on November 16, 2004, following a protracted five-year, $40 million development cycle during which the game?s source code was leaked to the Internet....
    , the 'a' in the title is also replaced by the lower case lambda symbol and the symbol is also the logo for The Resistance. The robotic Dog
    Dog (Half-Life 2)

    Dog is a robot in Valve Software's 2004 first-person shooter Video game Half-Life 2. Doctor Eli Vance built Dog to both celebrate and protect his daughter, Alyx Vance, more than two decades prior to the events of Half-Life 2....
     and graffiti sprayed around City 17 also features the symbol. The main reason the lambda was used frequently throughout the series, is because in science and mathematics, the lambda symbol is the decay constant, a positive constant used to describe the rate of exponential decay in a half-life
    Half-life

    The half-life of a quantity whose value decreases with time is the interval required for the quantity to decay to half of its initial value. The concept originated in describing how long it takes atoms to undergo radioactive decay but also applies in a wide variety of other situations....
    .
  • In the book Otherland
    Otherland

    Otherland is a series of four science fiction novels written by Tad Williams. The story is set in the mid-to-late 21st century where technology has advanced somewhat from the modern day....
    , Lambda is used to describe a huge Virtual Reality area of the Net known as the Lambda Mall which contains every shop on the net.
  • As a bonus following the conclusion of the X-DAY
    X-Day

    X-Day a military term that is shorthand for "attack day." It was the term used by the Japanese Imperial General Headquarters for the day that they would begin the Greater East Asia War, a part of World War II....
     manga, by Mizushiro Setona, the second book features a short tale entitled "The Last Supper." Its protagonist is a cow, genetically modified to have more human features, Lambda 26. The lambda character is tattooed on the outside of his right forearm.
  • GM Lambda platform
    GM Lambda platform

    Lambda is General Motors' full-size car crossover SUV automobile platform. The architecture debuted in 2006. The program was delayed several times because of company fears that it would take sales and profits away from the GM GMT platform truck platform....
    , a crossover SUV
    Crossover SUV

    A crossover — variously called CUV or crossover utility vehicle — is a marketing term for a vehicle that derives from a car automobile platform while borrowing features from an Sport utility vehicle or Minivan....
     automobile platform
    Automobile platform

    An automobile platform is a shared set of common design, engineering, and production efforts, as well as major components over a number of outwardly distinct models and even types of automobiles, often from different, but related marques....
     from General Motors
  • Lancia Lambda
    Lancia Lambda

    The Lancia Lambda was an innovative automobile produced from 1922 through 1931. It was list of automotive superlatives car to feature a load-bearing monocoque-type body, and it also pioneered the use of an independent suspension ....
    , a historic Italian automobile.
  • The name of the Nerds' fraternity in Revenge of the Nerds
    Revenge of the Nerds

    Revenge of the Nerds is a 1984 in film United States comedy film starring Robert Carradine and Anthony Edwards, with Curtis Armstrong, Ted McGinley, Julia Montgomery, Brian Tochi, Larry B....
     film series was Lambda Lambda Lambda, or "the Tri-Lambs." The logo consisted of three capital Lambda letters inside a triangle.
  • In the popular anime series Full Metal Panic!
    Full Metal Panic!

    is a series of light novels written by Shoji Gatoh and illustrated by Shiki Douji. The series follows Sousuke Sagara, a member of the covert anti-terrorist mercenary group Mithril , tasked with protecting Kaname Chidori, a spirited Japanese high school girl....
     A select few Arm Slaves possess the device called the Lambda Driver which can manifest emotional thought patterns into raw and devastating physical power.
  • is the name of a premium olive oil from Greece that is produced with Koroneiki olives, it is created through the process of common pressing, where carefully selected olives are hand-picked from the tree and pressed the same day.
  • In the Sailor Moon
    Sailor Moon

    is the title of a Japanese media franchise created by Naoko Takeuchi. It is generally credited with popularizing the concept of a sentai of magical girls, as well as "revitalizing" the magical girl genre itself....
     manga, the character Sailor Cosmos claimed to have the ultimate "Lambda Power."
  • Is the one of the main antagonists in Wild Arms: The 4th Detonator.
  • In the video game Skies of Arcadia
    Skies of Arcadia

    Skies of Arcadia, released in Japan as , is a console role-playing game developed by Overworks for the Dreamcast and published by Sega in 2000....
    , the character Aika uses an attack known as Lambda Burst. In fact, all her attacks are based on Greek letters.
  • Lambda is a name of an electrostatic headphone made by the audio company Stax Earspeakers
    Stax Earspeakers

    Stax Ltd. is a Japanese company that makes high end audio equipment. Stax is best known for their electrostatic and electret headphones, called "earspeakers"....
    . It is also a name of an amp made by Z-audio.
  • Lambda Acid is also the name of a synthesis item in the online action RPG
    Console role-playing game

    A console role-playing game is a video game Computer and video game genres that has its origin rooted in video game consoles and includes game mechanics and, frequently, settings derived from those of traditional role-playing games....
    , Phantasy Star Universe
    Phantasy Star Universe

    is an action role-playing game by Sega's Sonic Team for the IBM PC compatible, PlayStation 2 and Xbox 360. In Japan, it was released for the PC and PlayStation 2 on August 31, 2006, with the Xbox 360 version releasing on December 12, 2006....
    .
  • Lambda Ltd. is the name of a large technology company in the Custom Robo
    Custom Robo

    is a science fiction robotic fighting video game franchise developed by Noise and published by Nintendo.The series currently spans five games, and has titles on the Nintendo 64, Nintendo Game Boy Advance, Nintendo GameCube and Nintendo DS....
     series of video games.
  • The latest installment of the Guilty Gear
    Guilty Gear

    is a series of sprite -based fighting games by Arc System Works and designed by artist Daisuke Ishiwatari. It is popular with fans for its detailed anime-style computer graphics, original characters, hard rock/heavy metal soundtrack, unique gameplay, and its numerous references to rock music and heavy metal music....
     series of games is called Guilty Gear XX ? Core, commonly pronounced as "Guilty Gear Accent Core".
  • Lambda Legal
    Lambda Legal

    Lambda Legal is a United States civil rights organization that focuses on Homosexuality, lesbians, Bisexuality, transgender people and those with HIV through impact litigation, education, and public policy work....
     is a gay & lesbian legal advocacy group in the United States.
  • Lambda Literary Awards is the name of a group of U.S. book awards presented annually for gay and lesbian literature.
  • Lambda Particles is the name for the LGBT
    LGBT

    LGBT is an acronym and initialism referring collectively to Lesbian,Gay, Bisexuality, and Transgender people. In use since the 1990s, the term ?LGBT? is an adaptation of the initialism ?LGBT? which itself started replacing the phrase ?gay community? which many within LGBT communities felt did not represent accurately all those to which it...
     group at the Stanford Linear Accelerator Center
    Stanford Linear Accelerator Center

    The SLAC National Accelerator Laboratory, originally named Stanford Linear Accelerator Center, is a United States Department of Energy United States Department of Energy National Laboratories operated by Stanford University under the programmatic direction of the U.S....
    .
  • National LambdaRail
    National LambdaRail

    National LambdaRail is a high-speed national computer network infrastructure in the United States that runs over fiber optics lines, and is the first transcontinental Ethernet network....
     is a research high-speed computer network.
  • is a manufacturer of power supplies
    Power supply

    Power supply is a reference to a source of electrical power. A device or system that supplies electrical or other types of energy to an output External electric load or group of loads is called a power supply unit or PSU....
     that was founded in 1948.
  • Hyundai Motors uses Lambda to identify their 3.8 liter V6 engine.
  • Lambda is the name used by Durst for a series of digital printers using LED
    Light-emitting diode

    A light-emitting diode , is an electronic light source. The LED was discovered in the early 20th century, and introduced as a practical electronic component in 1962....
    s to print directly onto Silver Halide Photographic paper.
  • The progressive metal band Dream Theater
    Dream Theater

    Dream Theater is an United States progressive metal band formed in 1985 under the name Majesty by John Myung, John Petrucci and Mike Portnoy while they attended Berklee College of Music in Boston, before they dropped out to support the band....
     uses the capital Lambda (as well as capital Phi and capital Mu) in their wordmark known as the "Majesty Symbol"
  • LAMBDA: Least-squares AMBiguity Decorrelation Adjustment


See also

  • Greek letters used in mathematics, science, and engineering
  • ?, ? - El (Cyrillic)
    El (Cyrillic)

    eading=Cyrillic letter El|Image=...