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360px-Sine waves different frequencies.svg

Sinusoidal waves of various frequencies; the bottom waves have higher frequencies than those above. The horizontal axis represents time.

About

In Physics, frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency. The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency. The SI unit of frequency is the hertz (Hz), defined as one cycle per second.

In mathematics, frequency is the rate at which something occurs or is repeated over a period of time (i.e. days, months, or years) in a given sample. For example, when scheduling recurring work orders, the plan is delivering preventive maintenance work orders start and due dates (i.e. 3/6/12 month intervals).[1]

References

  1. IBM Knowledge Center. "Defining frequency for meter-based preventive maintenance records" http://www-01.ibm.com/support/knowledgecenter/SSWK4A_7.5.0/com.ibm.mbs.doc/pm/t_define_freq_meter_based_pm.html. Access date: 5/26/2015

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