chinalie: Lambda

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Look up ?, ? in Wiktionary, the free dictionary.

Greek alphabet

??

Alpha

??

Nu

??

Beta

??

Xi

??

Gamma

??

Omicron

??

Delta

??

Pi

??

Epsilon

??

Rho

??

Zeta

???

Sigma

??

Eta

??

Tau

??

Theta

??

Upsilon

??

Iota

??

Phi

??

Kappa

??

Chi

??

Lambda

??

Psi

??

Mu

??

Omega

Obsolete letters

Digamma

Qoppa

San

Sampi

Other characters

Stigma

Sho

Heta

Greek diacritics

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

Lambda (uppercase ?, lowercase ?; Greek: ?????? or ?????, Lamda) is the 11th letter of the Greek alphabet. In the system of Greek numerals it has a value of 30. It was derived from the Phoenician letter Lamed . Letters that arose from Lambda include the Roman L and the Cyrillic letter El (?, ?). The ancient Grammarians and dramatists attest to a pronunciation of /la?bda?/ (?????) in classical times.[1] In Modern Greek the name of the letter, ?????, is pronounced [lamea]; 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.

Contents

1 Symbol

1.1 Upper-case letter ?

1.2 Lower-case letter ?

2 Lambda, the word

3 Lambda as a name

4 See also

5 References

//

Symbol

Upper-case letter ?

The lambda particles in particle physics.

The set of logical axioms in the axiomatic method of logical deduction in first-order logic.

Used as a shield pattern by the Spartan army; it stood for Lakedaimon, the name of the region.

The von Mangoldt function in number theory.

In statistics, Wilks' lambda is used in multivariate analysis of variance (MANOVA) to compare group means on a combination of dependent variables.

In spectral decomposition of matrices, a diagonal matrix of eigenvalues of the decomposed matrix.

In computer science, the time window over which a process is observed for determining the working memory set for virtual memory management.

In astrophysics, 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, satisfying the current definition of a planet.

In crystal optics, it is used to represent the period of a lattice.

In NATO military operations, a chevron (Lambda symbol) is painted on coalition force vehicles for identification.

In Electrochemistry, denotes the Equivalent conductance of an electrolyte.

In cosmology, the symbol for the cosmological constant.

Lower-case letter ?

Lower-case lambda

A non-SI unit of measure of volume (symbol ?) equal to one microlitre (1 ?L) or one cubic millimetre (1mm3). This now-rare use is deprecated.

The wavelength of a wave in physics/radio sciences

In physics, linear charge density of a uniformly charged line(measured in C/m).

The radioactive decay constant (Connected to half-life of a radioactive isotope in physics)

Copyrighted symbol of Valve Software, used throughout the Half Life games.

The lambda phage virus in biology

In mathematical logic and computer science, used to introduce a function expression in the lambda calculus.

In formal language theory and computer science, the empty string.

In telecommunications, a frequency/wavelength on a WDM optical transport system

Eigenvalues in linear algebra

Lagrange multipliers in calculus

Lebesgue measure in set theory

Goodman and Kruskal's lambda is a statistic 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 oxygen sensor in an internal combustion engine's exhaust gas

A Japanese rocket type, Lambda (rocket)

The failure rate in hours (also the reciprocal of MTBF) in reliability theory.

In criminology, the individual offending frequency.

In cartography and navigation, longitude.

Christopher Langton's parameter for classification Stephen Wolfram's classes of...(and so on)