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In electrochemistry, lambda denotes the "equivalent conductance" of an electrolyte solution. In cosmology, lambda is the symbol for the cosmological constant, a term added to some dynamical equations to account for the accelerating expansion of the universe. In optics, lambda denotes the grating pitch of a Bragg reflector. Also in optics, it ...
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.
The barred lambda ( ƛ) (U+A7DC LATIN CAPITAL LETTER LAMBDA WITH STROKE, U+019B ƛ LATIN SMALL LETTER LAMBDA WITH STROKE), is a modified letter of the Greek alphabet, commonly encountered in North American linguistics. It is used by the Salishan and Wakashan languages in Canada. [1]
Note that bold text indicates that the quantity is a vector. Latin characters. Symbol Meaning SI unit of measure ... lambda: cosmological constant ...
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
The symbol ϵ (U+03F5) is designated specifically for the lunate form, used as a technical symbol. The symbol ϑ ("script theta") is a cursive form of theta (θ), frequent in handwriting, and used with a specialized meaning as a technical symbol. The symbol ϰ ("kappa symbol") is a cursive form of kappa (κ), used as a technical symbol.
Lambda calculus, a formal system for function definition; Lambda Lambda Lambda, a fictional college fraternity in the Revenge of the Nerds series Lambda Lambda Lambda, an American fraternity inspired by the fictional fraternity; Lambda Legal, an American civil rights organization; Lambda phage, a virus that infects bacteria
A quantity related to the wavelength is the angular wavelength (also known as reduced wavelength), usually symbolized by ƛ ("lambda-bar" or barred lambda). It is equal to the ordinary wavelength reduced by a factor of 2π (ƛ = λ/2π), with SI units of meter per radian. It is the inverse of angular wavenumber (k = 2π/λ).