Parity

Parity may refer to:

Parity (physics), a symmetry property of physical quantities or processes under spatial inversion
Parity (mathematics), indicates whether a number is even or odd
- Parity function, a Boolean function whose value is 1 if the input vector has an odd number of ones
- Parity flag in computing, indicates if the number of set bits is odd or even in the binary representation of the result of the last operation
- Parity bit in computing, sets the parity of transmitted data for the purpose of error detection
- Parity file in data processing, created in conjunction with data files and used to check data integrity and assist in data recovery
Parity (biology), the number of times a woman or female animal has given birth
Parity (charity), UK equal rights organisation
Parity (law), legal principle
Purchasing power parity, in economics, the exchange rate required to equalise the purchasing power of different currencies
Interest rate parity, in finance, the notion that the differential in interest rates between two countries is equal to the differential between the forward exchange rate and the spot exchange rate
Put–call parity, in financial mathematics, defines a relationship between the price of a European call option and a European put option
Parity (sports), an equal playing field for all participants, regardless of their economic circumstances
Potty parity, equalization of waiting times for males and females in restroom queues
A tactic in reversi
Grid parity of renewable energy

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