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In Boolean algebra, a parity function is a Boolean function whose value is one if and only if the input vector has an odd number of ones. The parity function of two inputs is also known as the XOR function. The parity function is notable for its role in theoretical investigation of circuit complexity of Boolean functions.
They are named for the parity of the powers of the power functions which satisfy each condition: the function () = is even if n is an even integer, and it is odd if n is an odd integer. Even functions are those real functions whose graph is self-symmetric with respect to the y -axis, and odd functions are those whose graph is self-symmetric ...
An odd function, such as an odd power of a variable, gives for any argument the negation of its result when given the negation of that argument. It is possible for a function to be neither odd nor even, and for the case f ( x ) = 0, to be both odd and even. [ 20 ]
Parity function, a Boolean function whose value is 1 if the input vector has an odd number of ones; Parity learning, a problem in machine learning; Parity of even and odd functions; Parity (physics), a symmetry property of physical quantities or processes under spatial inversion; Parity (biology), the number of times a female has given birth ...
In mathematics, when X is a finite set with at least two elements, the permutations of X (i.e. the bijective functions from X to X) fall into two classes of equal size: the even permutations and the odd permutations.
As for electrons in atoms, the nucleon state has odd overall parity if and only if the number of nucleons in odd-parity states is odd. The parity is usually written as a + (even) or − (odd) following the nuclear spin value. For example, the isotopes of oxygen include 17 O(5/2+), meaning that the spin is 5/2 and the parity is even.
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Parity (mathematics) divides the integers into two alternating sets, even and odd. This category is for extensions and applications of parity. This category is for extensions and applications of parity.