In complexity theory and computability theory, an oracle machine is an abstract machine used to study decision problems. It can be visualized as a Turing machine with a black box, called an oracle, which is able to solve certain decision problems in a single operation. The problem can be of any complexity class.
Sofia Carson is an American singer and actress. She played Chelsea in an episode of Austin and Ally, and played Evie in Descendants. She also played Lola Perez in Adventures in Babysitting.
Carson, who is of Colombian descent, is about to star in her first Disney Channel original movie, âDescendants,â premiering Friday. In the film Carson plays Evie, the teenage daughter of the Evil Queen from âSnow White,â who has been allowed to leave the island exile with the children of other Disney villains for a new boarding school.