Tangent (disambiguation)
# Tangent (disambiguation)

A tangent, in geometry, is a straight line through a point on a curve that has the same direction at that point as the curve.

Tangent may also refer to:

## Mathematics

* Analogous concepts for surfaces and higher-dimensional smooth manifolds, such as the tangent space
   * More generally, in geometry, two curves are said to be tangent when they intersect at a given point and have the same direction at that point; see for instance tangent circles
   * Bitangent, a line that is tangent to two different curves, or tangent twice to the same curve
* The tangent function, one of the six basic trigonometric functions

## Music

* Tangent (clavichord), a part of the action of the clavichord that both initiates and sustains a tone, and helps determine pitch
* Tangent (tangent piano), a part of the action of the tangent piano that only initiates the sound by striking the string(s) and rebounding immediately in the manner of a piano
* The Tangent, an international progressive rock supergroup
* Tangents: The Tea Party Collection, a compilation album from The Tea Party released in 2000.
* Tangents: 1973–1983, a compilation box set from Tangerine Dream released in 1994.
* Tangents (band), an Australian musical group

## Entertainment

* Tangent Comics, a short-lived imprint of DC Comics
* "The Tangent Universe", the alternate universe in time travel in the cult film Donnie Darko
* Tangent (Stargate SG-1), an episode of the television series Stargate SG-1
* Tangents (film) or Time Chasers, a 1994 science fiction film
* Tangents (collection), a collection of science fiction stories by Greg Bear

## Geography

* Tangent, Alberta, a hamlet in Alberta, Canada
* Tangent, Oregon, a city in Linn County, Oregon, United States
* The Tangent Line, part of the Mason-Dixon line between Delaware and Maryland, United States
* Tangente River, a tributary of the Wawagosic River, in Quebec, Canada

## Other uses

* Tangent (club), an international social networking group for women over 45, part of the Round Table family
* Track transition curve, a straight section of road or track in highway and railroad design
