∆ may refer to:
*
Triangle
A triangle is a polygon with three corners and three sides, one of the basic shapes in geometry. The corners, also called ''vertices'', are zero-dimensional points while the sides connecting them, also called ''edges'', are one-dimension ...
(∆), one of the basic shapes in geometry. Many different
mathematical equations
In mathematics, an equation is a mathematical formula that expresses the equality of two expressions, by connecting them with the equals sign . The word ''equation'' and its cognates in other languages may have subtly different meanings; for e ...
include the use of the triangle.
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Delta (letter)
Delta ( ; uppercase Δ, lowercase δ; , ''délta'', ) is the fourth letter of the Greek alphabet. In the system of Greek numerals, it has a value of four. It was derived from the Phoenician alphabet, Phoenician letter Dalet (letter), dalet 𐤃. ...
(Δ), a Greek letter also used in mathematics and computer science
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Delta baryon
The Delta baryons (or baryons, also called Delta resonances) are a family of subatomic particle made of three up or down quarks (u or d quarks), the same constituent quarks that make up the more familiar protons and neutrons.
Properties
Fo ...
(Δ), one of several
Baryons
In particle physics, a baryon is a type of composite subatomic particle that contains an odd number of valence quarks, conventionally three. Protons and neutrons are examples of baryons; because baryons are composed of quarks, they belong to ...
consisting of
up and
down quarks
The down quark (symbol: d) is a type of elementary particle, and a major constituent of matter. The down quark is the second-lightest of all quarks, and combines with other quarks to form composite particles called hadrons. Down quarks are most ...
.
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alt-J
Alt-J (stylised as alt-J, real name Δ) are an English indie rock band formed in 2007 in Leeds. Their lineup includes Joe Newman (guitar/lead vocals), Thom Sonny Green (drums), Gus Unger-Hamilton (keyboards/vocals), and formerly Gwil Sainsbury ...
(Δ), a British indie band
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Laplace operator
In mathematics, the Laplace operator or Laplacian is a differential operator given by the divergence of the gradient of a Scalar field, scalar function on Euclidean space. It is usually denoted by the symbols \nabla\cdot\nabla, \nabla^2 (where \ ...
(Δ), a differential operator
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Increment operator
Increment or incremental may refer to:
*Incrementalism, a theory (also used in politics as a synonym for gradualism)
*Increment and decrement operators, the operators ++ and -- in computer programming
*Incremental computing
*Incremental backup, wh ...
(∆)
*
Symmetric difference
In mathematics, the symmetric difference of two sets, also known as the disjunctive union and set sum, is the set of elements which are in either of the sets, but not in their intersection. For example, the symmetric difference of the sets \ and ...
, in mathematics, the set of elements which are in either of two sets and not in their intersection
See also
*
ᐃ, a letter of Canadian Aboriginal Syllabics
*
Latin delta
Latin delta (ẟ, lower-case only) is a latin alphabet, Latin letter similar in appearance to the Greek alphabet, Greek lowercase letter delta (letter), delta (δ), but derived from the handwritten Latin lowercase d. It is also known as "script d" ...
(ẟ), letter of the extended Latin alphabet
References
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