In mathematics, a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point.

"Spiral" / "Ulterior Motive" is the first single by drum and bass band Pendulum. It was initially released on 10 July 2003, while the band were still based in Perth, as a promotional single by Kog Transmissions' sublabel Low Profile. The single was made publicly available on 1 March 2004 by Concord Dawn's label Uprising Records, with the same track listing as the promotional record. The record was released worldwide distributed by LOAD Media and is one of Uprising Records' highest selling singles.