One acceptable weight is a constant exponent (possibly the square) of the multiplicative inverse of the duration (possibly expressed in the number of days) between the date of the generation and the generation available before it.
The terminology weight function arises from mechanics: if one has a collection of objects on a lever, with weights (where weight is now interpreted in the physical sense) and locations :, then the lever will be in balance if the fulcrum of the lever is at the center of mass
Green function | Graph of a function | Hash function | Schur function | Riemann zeta function | Dirac delta function | Bessel function | The Weight | Weight for Age | The Weight of Chains | Monotonic function | Lateralization of brain function | function (mathematics) | Cryptographic hash function | Weight Watchers | weight | Linear function | hash function | Gross vehicle weight rating | Gaussian function | function | Euler's totient function | Domain of unknown function | continuous function | Carry That Weight | Weight training | Wave function | Quadratic function | Meijer G-function | Massieu function |