A visual interaction between two or more lines or edges that creates a perceived relationship between them, often in a way that the artist did not intend.
A function of an angle that gives the ratio of the sine to the cosine, in either the real or complex numbers. Symbols: tan, tg.
A topic nearly unrelated to the main topic, but having a point in common with it.
A small metal blade in a clavichord that strikes the strings to produce sound.
A straight line touching a curve at a single point without crossing it there.
Straight; not horizontally curved.
Touching a curve at a single point but not crossing it at that point.
Of a topic, only loosely related to a main topic.
A sudden or sharp turn or change of direction.
To make such a turn.