## TANGENT

### Tangent

In geometry, the**tangent line**to a plane curve at a given point is the straight line that "just touches" the curve at that point. Informally, it is a line through a pair of infinitely close points on the curve. More precisely, a straight line is said to be a tangent of a curve at a point on the curve if the line passes through the point on the curve and has slope where

*f*is the derivative of

*f*. A similar definition applies to space curves and curves in

*n*-dimensional Euclidean space.

*The above text is a snippet from Wikipedia: Tangent*

and as such is available under the Creative Commons Attribution/Share-Alike License.

and as such is available under the Creative Commons Attribution/Share-Alike License.

### tangent

#### Noun

- A straight line touching a curve at a single point without crossing it there.
- In a right triangle, the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle. Symbols: tan, tg

- A topic nearly unrelated to the main topic, but having a point in common with it.
*I believe we went off onto a***tangent**when we started talking about monkeys on unicycles at his retirement party.

- A small metal blade by which a clavichord produces sound.

#### Adjective

- Touching a curve at a single point but not crossing it at that point.
- Of a topic, only loosely related to a main topic.

*The above text is a snippet from Wiktionary: tangent*

and as such is available under the Creative Commons Attribution/Share-Alike License.

and as such is available under the Creative Commons Attribution/Share-Alike License.