rate
Rate (from Latin rata pars 'calculated part' to ratum 'calculated' ) refers to a quantity related to a period of time. Colloquially, the term is sometimes used for a percentage, see quota .
- a rate of change , i.e. the change in a variable over time (in the infinitesimal limit case the derivative of a variable)
- Growth or decay rate as the rate of change of the logarithm of a size (equals the rate of change of the size in relation to the size itself)
- a flow quantity as a qualitatively definable summand for the rate of change of a stock quantity (see also pro rata temporis )
- Individual contributions to flows, in particular an installment payment
- a flow variable related to another population size, such as the incidence rate (disease rate related to the population size)
- Relationships of flow variables (or of their individual contributions), such as a freight rate
See also:
Wiktionary: Rate - explanations of meanings, word origins, synonyms, translations
- List of all Wikipedia articles whose title contains Rate