Look up Δ, δ in Wiktionary, the free dictionary.

Greek alphabet
Αα Alpha	Νν Nu
Ββ Beta	Ξξ Xi
Γγ Gamma	Οο Omicron
Δδ Delta	Ππ Pi
Εε Epsilon	Ρρ Rho
Ζζ Zeta	Σσ 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
Ϝϝ Digamma	Ϙϙ Qoppa
Ϛϛ Stigma	Ϡϡ Sampi
Ϻϻ San	Ϸϸ Sho
Greek diacritics

Delta (uppercase Δ, lowercase δ) is the fourth letter of the Greek alphabet. In the system of Greek numerals it has a value of 4. It was derived from the Phoenician letter Dalet . Letters that arose from Delta include the Latin D and the equivalent in the Cyrillic alphabet Д. Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... Image File history File links Delta_uc_lc. ... The Greek alphabet (Greek: ) is an alphabet consisting of 24 letters that has been used to write the Greek language since the late 8th or early 8th century BC. It was the first alphabet in the narrow sense, that is, a writing system using a separate symbol for each vowel... Alpha (uppercase Α, lowercase α) is the first letter of the Greek alphabet. ... For other uses, see Nu. ... Beta (upper case Î’, lower case β) is the second letter of the Greek alphabet. ... Look up Ξ, ξ in Wiktionary, the free dictionary. ... Gamma (uppercase Γ, lowercase γ) is the third letter of the Greek alphabet. ... Look up Ο, ο in Wiktionary, the free dictionary. ... For other uses, see Pi (disambiguation) Pi (upper case Π, lower case Ï€ or Ï–) is the sixteenth letter of the Greek alphabet. ... Look up Ε, ε in Wiktionary, the free dictionary. ... Look up Ρ, ρ in Wiktionary, the free dictionary. ... Zeta or ZETA can refer to: // Zeta (letter), of the Greek alphabet Zeta functions, in mathematics Riemann zeta function Tropical Storm Zeta (2005), formed in December 2005 and lasted through January 2006 Z-pinch, in fusion power Zeta (Mexico), a magazine from Tijuana, Mexico Zeta River, in Montenegro Zeta plain... For other uses, see Sigma (disambiguation). ... Look up Η, η in Wiktionary, the free dictionary. ... Look up Τ, Ï„ in Wiktionary, the free dictionary. ... Look up Θ, θ in Wiktionary, the free dictionary. ... Upsilon (upper case , lower case ) is the 20th letter of the Greek alphabet. ... Look up Ι, ι in Wiktionary, the free dictionary. ... Look up Φ, φ in Wiktionary, the free dictionary. ... For other uses, see Kappa (disambiguation). ... Look up Χ, χ in Wiktionary, the free dictionary. ... Look up Λ, λ in Wiktionary, the free dictionary. ... Look up Ψ, ψ in Wiktionary, the free dictionary. ... Look up Îœ, μ in Wiktionary, the free dictionary. ... Look up Ω, ω in Wiktionary, the free dictionary. ... Digamma (upper case , lower case ) is an archaic letter of the Greek alphabet, used primarily as a Greek numeral. ... Qoppa Qoppa is an obsolete letter of the Greek alphabet and has a numeric value of 90. ... Stigma is a ligature of the Greek letters sigma and tau, sometimes used nowadays to represent the Greek numeral 6. ... Sampi (Upper case Ϡ, lower case ϡ) is an obsolete letter of the Greek alphabet and has a numeric value of 900. ... San (uppercase , lowercase ) was a letter of the Greek alphabet, appearing between Pi and Qoppa in alphabetical order, corresponding in position although not in name to the Phoenician tsade. ... Sho (uppercase , lowercase ) was a letter added to the Greek alphabet in order to write the Bactrian language. ... In the Greek alphabet, vowels can carry diacritics, namely accents and breathings. ... Look up delta in Wiktionary, the free dictionary. ... The Greek alphabet (Greek: ) is an alphabet consisting of 24 letters that has been used to write the Greek language since the late 8th or early 8th century BC. It was the first alphabet in the narrow sense, that is, a writing system using a separate symbol for each vowel... Greek numerals are a system of representing numbers using letters of the Greek alphabet. ... The Phoenician alphabet is a continuation of the Proto-Canaanite alphabet, by convention taken to begin with a cut-off date of 1050 BCE. It was used by the Phoenicians to write Phoenician, a Northern Semitic language. ... Dalet (, also spelled Daleth or Daled) is the fourth letter of many Semitic alphabets, including Phoenician, Aramaic, Hebrew , Syriac and Arabic (in abjadi order; 8th in modern order). ... Phoenician Daleth. ... For other uses, see D (disambiguation). ... The Cyrillic alphabet (pronounced also called azbuka, from the old name of the first two letters) is actually a family of alphabets, subsets of which are used by certain Slavic languages — Belarusian, Bulgarian, Macedonian, Russian, Rusyn, Serbian, and Ukrainian—as well as many other languages of the former Soviet Union... De (Д, д) is a letter of the Cyrillic alphabet. ...

In Modern Greek it represents a voiced dental fricative /ð/, (like the th in the English word this) but in the Ancient Greek language, it represented a voiced dental plosive [d]. Main article: Greek language Modern Greek (Νέα Ελληνικά or Νεοελληνική, lit. ... The voiced dental non-sibilant fricative is a type of consonantal sound, used in some spoken languages. ... Note: This article contains special characters. ... The voiced dental plosive is a type of consonantal sound, used in some spoken languages. ...

A river delta is named after the letter delta because it has roughly the triangular shape of the upper-case delta. Nile River delta, as seen from Earth orbit. ...

The upper-case letter Δ can be used to denote:

• The difference operator, effecting a change or difference between mathematical values:

= the average change of y per unit x commonly known as the change of y over the change of x.

• By extension of the above, change generally, a use which shows up frequently in medical charts.
• The Laplace operator:

• The discriminant of a polynomial equation, especially the quadratic equation:

• A macroscopic change in the value of a variable in mathematics or science.
• Any of the delta particles in particle physics.
• That an associated locant number represents the location of a covalent bond in an organic compound, the position of which is variant between isomeric forms.
• In legal shorthand, it represents a defendant.
• In genetics, it can stand for a gene deletion, e.g. the CCR5-Δ32 a deletion of the CCR5 at the 32nd bp segment.
• In medical shorthand, it can stand for change of any type.

The lower-case letter δ can be used to denote: In mathematics, a difference operator maps a function f(x) to another function f(x + a) − f(x + b). ... This article does not cite any references or sources. ... In mathematics and physics, the Laplace operator or Laplacian, denoted by Δ, is a differential operator, specifically an important case of an elliptic operator, with many applications. ... In algebra, the discriminant of a polynomial is a certain expression in the coefficients of the polynomial which equals zero if and only if the polynomial has multiple roots in the complex numbers. ... In mathematics, a polynomial is an expression that is constructed from one variable or more variables and constants, using only the operations of addition, subtraction, multiplication, and constant positive whole number exponents. ... In mathematics, a quadratic equation is a polynomial equation of the second degree. ... For a non-technical overview of the subject, see Calculus. ... Combinations of three u, d or s-quarks with a total spin of 3/2 form the so-called baryon decuplet. ... See the definition at CancerWEBs online medical dictionary. ... Covalent redirects here. ... Benzene is the simplest of the arenes, a family of organic compounds An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. ... In chemistry, isomers are molecules with the same chemical formula and often with the same kinds of bonds between atoms, but in which the atoms are arranged differently. ... It is common practice in legal documents to cite to other publications by using standard abbreviations for the title of each source. ... A defendant or defender is any party who is required to answer the complaint of a plaintiff or pursuer in a civil lawsuit before a court, or any party who has been formally charged or accused of violating a criminal statute. ... This article is about the general scientific term. ... Deletion on a chromosome In genetics, a deletion (also called gene deletion, deficiency, or deletion mutation) is a mutation (a genetic aberration) in which a part of a chromosome or a sequence of DNA is missing. ... CCR5, short for chemokine (C-C motif) receptor 5, is a chemokine receptor. ...

• An infinitesimal change in the value of a variable in mathematics or science.
• An auxiliary function in Calculus used to rigorously define the limit or continuity of a given function.
• The Kronecker delta in mathematics.
• The Dirac delta function in mathematics.
• Deflection in engineering mechanics
• The Force of Interest in actuarial science.
• Text requiring deletion in proofreading. The usage is said to date back to classical times.
• The relative electronegativity of different atoms in a molecule, δ⁻ being more electronegative than δ⁺.
• In some of the manuscripts written by Dr. John Dee, the character of delta is used to represent Dee.
• The transition function in automata.
• The Computer Science chapter at the Royal Institute of Technology. ^[1]

In mathematics, differential has several meanings: Differential (infinitesimal), an infinitesimal change in the value of a function In differential topology: Differential form, a generalization that accommodates multiplication and differentiation of differentials In addition, differentials and differential forms on manifolds come with the following notions of differentiation: Exterior derivative, a notion... For other uses, see Calculus (disambiguation). ... In mathematics, the limit of a function is a fundamental concept in mathematical analysis. ... In mathematics, a continuous function is a function for which, intuitively, small changes in the input result in small changes in the output. ... In mathematics, the Kronecker delta or Kroneckers delta, named after Leopold Kronecker (1823-1891), is a function of two variables, usually integers, which is 1 if they are equal, and 0 otherwise. ... The Dirac delta or Diracs delta, often referred to as the unit impulse function and introduced by the British theoretical physicist Paul Dirac, can usually be informally thought of as a function δ(x) that has the value of infinity for x = 0 and the value zero elsewhere. ... This article or section does not cite any references or sources. ... Proofreading means reading a proof copy of a text in order to detect and correct any errors. ... Electronegativity is a measure of the ability of an atom or molecule to attract electrons in the context of a chemical bond. ... For the American college basketball coach, see John Dee (basketball coach). ... In mathematics, a transition function has several different meanings: In topology, a transition function is a homeomorphism from one coordinate chart to another. ... Fig. ... The Royal Institute of Technology or Kungliga tekniska högskolan (KTH) is a university in Stockholm, Sweden. ...

References

1. ^ Konglig Datasektionen, Statutes, §2.2 Symbol