Толковый словарь английского языка - frequency
Frequency
frequency
noun (plural -cies) Date: 1600 the fact or condition of occurring frequently, 2. the number of times that a periodic function repeats the same sequence of values during a unit variation of the independent variable, the number, proportion, or percentage of items in a particular category in a set of data, the number of repetitions of a periodic process in a unit of time: as, the number of complete alternations per second of an alternating current, the number of complete oscillations per second of energy (as sound or electromagnetic radiation) in the form of waves
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1.
n. (pl. -ies) 1 commonness of occurrence. 2 a the state of being frequent; frequent occurrence. b the process of being repeated at short intervals. 3 Physics the rate of recurrence of a vibration, oscillation, cycle, etc.; the number of repetitions in a given time, esp. per second. Usage Abbr.: f. 4 Statistics the ratio of the number of actual to possible occurrences of an event. Phrases and idioms frequency band Electronics = BAND(1) 3a. frequency distribution Statistics a measurement of the frequency of occurrence of the values of a variable. frequency modulation Electronics a modulation in which the frequency of the carrier wave is varied. Usage Abbr.: FM. frequency response Electronics the dependence on signal-frequency of the output-input ratio of an amplifier etc. Etymology: L frequentia (as FREQUENT) ...Толковый словарь английского языка Oxford English Reference
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