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Hertz, as we all know, is a unit of frequency where 1 Hz equals one cycle per second. Conversely 3 Hz is three cycles per second and 0.2 Hz is one cycle every five seconds.

That last example can be quite hard to read. Knowing that 0.067 Hz equals once every 15 seconds is not something you can immediately read.

Is there another notation you can use to signify that something occurs every 15 seconds, sort of life "something" 15 sec ? (I know I could use 1/15 Hz, but I just don't like how it looks :)

And to be clear, I'm looking for some kind of symbol :)

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  • 3
    $\begingroup$ 15 seconds is the period of oscillation. The period is the reciprocal of the frequency. $\endgroup$ – G. Smith Oct 5 at 16:06
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    $\begingroup$ @G.Smith, you should post that as an answer. $\endgroup$ – The Photon Oct 5 at 17:04
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    $\begingroup$ 67 mHz......... $\endgroup$ – JEB Oct 5 at 17:11
  • $\begingroup$ rpm - revolutions per minute; in your example 4. $\endgroup$ – safesphere Oct 6 at 16:24

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