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.
Sofia was currently casted to play Evie, the daughter of the Evil Queen, in the Disney Channel upcoming original movie, Descendants, which premiered on July 31, 2015. Sofia had to say about herself: I am Sofia Carson. I sing, I write and I act because I'm a story teller.