Point at infinity complex field, the set of points at infinity is a manifold. In artistic drawing and technical perspective, the projection on the picture plane of the point at infinity of a class of parallel lines is called their vanishing point. In hyperbolic geometry, points at infinity are typically named ideal points. Unlike Euclidean and elliptic geometries, each line has two points at infinity: given a line "l" and a point "P" not on "l", the right- and left-limiting parallels converge asymptotically to different points at infinity. All points at infinity together form the Cayley absolute or boundary of a hyperbolic plane.
No Line on the Horizon U2 Additional performers Technical !scope="row"|Romania (UFPR) Bibliography No Line on the Horizon No Line on the Horizon is the 12th studio album by Irish rock band U2. It was produced by Brian Eno, Daniel Lanois, and Steve Lillywhite, and was released on 27 February 2009. It was the band's first record since "How to Dismantle an Atomic Bomb" (2004), marking the longest gap between studio albums of their career to that point. The band originally intended to release the songs as two EPs, but later combined the material into a single record. Photographer Anton Corbijn shot a companion film, "Linear",