## 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

### tangent

#### Noun

1. A straight line touching a curve at a single point without crossing it there.
2. 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
1. 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.
2. A small metal blade by which a clavichord produces sound.