- In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called elements, or terms). The number of elements (possibly infinite) is called the length of the sequence. Unlike a set, the same elements can appear multiple times at different positions in a sequence, and unlike a set, the order does matter. Formally, a sequence can be defined as a function from natural numbers (the positions of elements in the sequence) to the elements at each position. The notion of a sequence can be generalized to an indexed family, defined as a function from an arbitrary index set.
- Return of the Jedi (Wikipedia)
Return of the Jedi (also known as Star Wars: Episode VI – Return of the Jedi) is a 1983 American epic space opera film that is a sequel to The Empire Strikes Back (1980). It is the third installment in the original Star Wars trilogy and the sixth chronological film in the “Skywalker Saga”. It is directed by Richard Marquand based on a screenplay by Lawrence Kasdan and George Lucas from a story by Lucas, who was also the executive producer. The film follows the ongoing struggle between the malevolent Galactic Empire and the freedom fighters of the Rebel Alliance. As the Rebels attempt to destroy the Empire’s second Death Star, Luke Skywalker tries to bring his father, Darth Vader, back from the dark side of the Force. The film stars Mark Hamill, Harrison Ford, Carrie Fisher, Billy Dee Williams, Anthony Daniels, David Prowse, Kenny Baker, Peter Mayhew and Frank Oz.