This article is about the Greek letter. For other uses, see Lambda (disambiguation).
"Λ" redirects here. Not to be confused with Turned v, ʎ, or 人.
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
History
Archaic local variants
Ϝ
Ͱ
Ϻ
Ϙ
Ͳ
Ͷ
tsan
digamma
Diacritics
Ligatures
Numerals
ϛ (6)
ϟ (90)
ϡ (900)
Use in other languages
Bactrian
Coptic
Albanian
Related topics
Use as scientific symbols
Category
v
t
e
Lambda (/ˈlæmdə/;[1] uppercase Λ, lowercase λ; Greek: λάμ(β)δα, lám(b)da) is the eleventh letter of the Greek alphabet, representing the voiced alveolar lateral approximant IPA:[l]. In the system of Greek numerals, lambda has a value of 30. Lambda is derived from the Phoenician Lamed. Lambda gave rise to the Latin L and the Cyrillic El (Л). The ancient grammarians and dramatists give evidence to the pronunciation as [laːbdaː] (λάβδα) in Classical Greek times.[2] In Modern Greek, the name of the letter, Λάμδα, is pronounced [ˈlam.ða].
In early Greek alphabets, the shape and orientation of lambda varied.[3] 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 put the angle at the lower-left.
The HTML 4 character entity references for the Greek capital and small letter lambda are Λ and λ respectively.[4] The Unicode code points for lambda are U+039B and U+03BB.
^"lambda". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
^Herbert Weir Smyth. A Greek Grammar for Colleges. I.1.c
^"Epigraphic Sources for Early Greek Writing". Poinikastas.CSAD.ox.ac.uk. Retrieved 2011-10-03.
^"HTML 4.01 Specification. 24. Character entity references in HTML 4". World Wide Web Consortium.
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