Angle Bracket. An angle bracket is the combination of a bra and ket (bra+ket = bracket) which represents the inner product of two functions or vectors (or 1-forms), in a function space, or. in a vector space. Here, represents the adjoint. The expression is also commonly used to denote the expectation value of a variable .
Definition: In the ancient Peloponnese, Helots were area residents exploited, like the proverbial serf, by the ancient Spartans. The origins of the helots are disputed. One theory is that when the Spartans realized they needed more arable land they looked to the southwest to the more fertile soil of Messenia. The helots were conquered Laconians whom the Spartans made subservient.
Laertes is a character in Hamlet who is portrayed as another impulsive young man. His father Polonius, whose death is caused accidently by Hamlet, is a counselor to King Claudius and his sister Ophelia is courted by Prince Hamlet. Like Hamlet, Laertes too lost his father and he begins to suspect King Claudius to be the murderer, and then lives his life to avenge his fatherâs death.