👉 Fidelity in the context of mathematics refers to a property or characteristic that is maintained by two or more objects, individuals, or entities. It is an essential concept in many areas of mathematics and physics, such as probability, statistics, optimization, and quantum mechanics.
In mathematical terms, fidelity can be defined as the degree to which two quantities are "close" or "consistent." For example, if two numbers x and y are related by a certain rule (e.g., x = f(y)),
fidelity