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In mathematical formulations of quantum mechanics, an operator is a linear transformation from a Hilbert space to itself. An observable is a self-adjoint operator. By extension, operator is also used to refer to an element of a C* algebra. For the justitication of this usage, see Gelfand-Naimark theorem

Topics: Operator (physics), Operator Overloading, Operator Logo...

OperatorThis article is about operators in mathematics, for other kinds of operators see operator (disambiguation). In mathematics, an operator is some kind of function; if it comes with a specified type of operand as function domain, it is no more than another w	Operator overloadingIn computer programming, operator overloading (less commonly known as ad-hoc polymorphism) is a specific case of polymorphism in which some or all of operators like +, or are treated as polymorphic functions and as such have different behaviours depending	Operator logoAn operator logo is a logo which appears on the status screen of a mobile phone. Originally intended as a way for phone companies to brand phones attached to their networks, the operator logo has since become a method by which owners may customise their p
Operator normIn mathematics, the operator norm is a norm defined on the space of bounded operators between two Banach spaces. Given a linear operator , where X and Y are Banach spaces with norms , respectively, we define :: :::: :::: Further analysis In functional ana	Operator (physics)Operator theory Theoretical physics In mathematical formulations of quantum mechanics, an operator is a linear transformation from a Hilbert space to itself. An observable is a self-adjoint operator. By extension, operator is also used to refer to an elem	Operator assistanceAn operator-assisted call is one in which the calling party places a telephone call where it is necessary to have the operator provide some form of assistance in completing the call. This includes telephone calls made from some pay phones, calls placed st
Operator algebra	Operator associativity	Operator (biology)
Operators in C and C Plus Plus	Operator (disambiguation)	Operator theory
Operator (programming)	Operator (IRC)

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