Lambda (letter): Wikis

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"Labda" redirects here. For the mythological figure, see Labda (mythology).
Lambda uc lc.svg
Greek alphabet
Αα Alpha Νν Nu
Ββ Beta Ξξ Xi
Γγ Gamma Οο Omicron
Δδ Delta Ππ Pi
Εε Epsilon Ρρ Rho
Ζζ Zeta Σσς Sigma
Ηη Eta Ττ Tau
Θθ Theta Υυ Upsilon
Ιι Iota Φφ Phi
Κκ Kappa Χχ Chi
Λλ Lambda Ψψ Psi
Μμ Mu Ωω Omega
Obsolete letters
Digamma uc lc.svg Digamma Qoppa uc lc.svg Qoppa
San uc lc.svg San Sampi uc lc.svg Sampi
Other characters
Stigma uc lc.svg Stigma Sho uc lc.svg Sho
Heta uc lc.svg Heta

Greek diacritics

Lambda (uppercase Λ, lowercase λ; Greek: Λάμβδα or Λάμδα, Lamda) is the 11th letter of the Greek alphabet. In the system of Greek numerals it has a value of 30. It is related to the Phoenician letter Lamed Lamedh. Letters that arose from Lambda include the Roman L and the Cyrillic letter El (Л, л). The ancient Grammarians and dramatists attest to a pronunciation of [laːbdaː] (λάβδα) in classical times.[1] In Modern Greek the name of the letter, Λάμδα, is pronounced [lamða]; the letter itself is pronounced [l] as with Latin L.

In early Greek alphabets, the shape and orientation of lambda varied.[2] 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, Greek settled on an angle at the top; the Romans, borrowing from Western alphabets, put the angle at the lower left.



Upper-case letter Λ

Lower-case letter λ

Lower-case lambda

Lambda, the word

  • In anatomy, the lambda is the point on the skull where the two parietal bones and the occipital bone 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.
  • In programming languages such as Lisp and Python, lambda is an operator used to denote anonymous functions or closures, following lambda calculus usage.
  • The language Unlambda is a functional programming language based upon combinatory logic, a simplification of the lambda calculus that does not involve the lambda at all, hence the un- prefix.
  • An automotive oxygen sensor (O2 sensor) is also known as a lambda probe, sensor, sond, or sonde.
  • Lambda is used in art and photography to refer to a digital Type C print or the equipment used to produce it.
  • Lambda was used by Pythagoras to create the Lambda number Sequence {1, 2, 3, 4, 8, 9, 27}, it is on going.

Lambda as a name

  • Lambda Men national social fraternity.
  • The popular science fiction universe of Star Wars uses a transport vehicle known as the Lambda-class shuttle that when viewed forward has the shape of the lowercase lambda.
  • The Lambda is a recurring symbol in the popular computer game series, Half Life.
  • Lambda is occasionally used in graphic design to represent stylized As. Examples include the Disney movie Atlantis: The Lost Empire, the logo of the band Angels & Airwaves, the logo of the band Dream Theater, and the logo of electronics company Samsung. Conversely, the name of the band Λucifer (pronounced lucifer) is sometimes spelt Aucifer.
A capital Lambda
  • 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 book Otherland, 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 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, a crossover SUV automobile platform from General Motors
  • Lancia Lambda, a historic Italian automobile.
  • The name of the Nerds' fraternity in Revenge of the Nerds 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! A select few Arm Slaves possess the device called the Lambda Driver which can manifest emotional thought patterns into raw and devastating physical power.
  • In the Sailor Moon manga, the character Sailor Cosmos claimed to have the ultimate "Lambda Power", which was stated to be the power of rebirth.
  • Is the one of the main antagonists in Wild Arms: The 4th Detonator.
  • In the video game Skies of Arcadia, 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. 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, Phantasy Star Universe.
  • Lambda Ltd. is the name of a large technology company in the Custom Robo series of video games.
  • The latest installment of the Guilty Gear series of games is called Guilty Gear XX Λ Core, commonly pronounced as "Guilty Gear Accent Core".
  • Lambda Legal 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 group at the Stanford Linear Accelerator Center.
  • Lambda Rising is a gay & lesbian bookstore in the Dupont Circle neighborhood of Washington, D.C. which created the Lambda Literary Award in 1989.
  • National LambdaRail is a research high-speed computer network.
  • Lambda Americas is a manufacturer of power supplies 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 LEDs to print directly onto Silver Halide Photographic paper, see Type C print.
  • The progressive metal band Dream Theater 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[5]
  • LAMBDA is the name of an international calibre music and fine arts school located in Pierrefonds of Montreal (Quebec, Canada) run by a team of concert artists. This school uses the name LAMBDA because in the arts, people are connected by the wavelength of sound (as in music) and the wavelength of light (colors in painting). LAMBDA is also the acronym for Learning of the Arts through the Mind and Body in the Discovery of Aesthetics (LAMBDA).
  • Lambda-Delta (or Lambdadelta) is the name of a witch in the Umineko no Naku Koro ni doujin game.
  • In the video game Tales of Graces, Lambda is the primary antagonist of the game, residing within Richard and eventually becoming Lambda Angelus.

Lambda is the name given to members of Lambda Theta Phi, Latin Fraternity Incorporated. Lambda Theta Phi is the first National Latino Fraternity in the United States, founded in 1975 in Kean College, Union New Jersey (now Kean University). Lambda1975.Org

See also

Lambda is the name given to members of Lambda Theta Phi, Latin Fraternity Incorporated. Lambda Theta Phi is the first National Latino Fraternity in the United States, founded in 1975 in Kean College, Union, New Jersey (now Kean University). Lambda1975.Org

Lambda Ladies is the nick-name given to members of Lambda Theta Alpha, Latin Sorrority Incorporated. Lambda Theta Alpha is the first National Latina Sorrority in the United States, founded in Kean College, Union New Jersey (now Kean University). Lambdalady.Org


  1. ^ Herbert Weir Smyth. A Greek Grammar for Colleges. I.1.c
  2. ^ Poinikastas: Epigraphic Sources for Early Greek Writing
  3. ^ Wankat Separation Process Engineering 2nd ed, Prentice Hall
  4. ^ [1]
  5. ^ resolution of GPS ambiguities

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