### Some articles on *frequencies, original frequencies*:

Heterodyne - Mathematical Principle - Output of A Mixer

... multiply signals and generate heterodyne

... multiply signals and generate heterodyne

**frequencies**, the nonlinear function F can be expanded in a power series (MacLaurin series) To simplify the math ... Applying the two sine waves at**frequencies**ω1 = 2πf1 and ω2 = 2πf2 to this device It can be seen that the second term above contains a product of the two sine waves ... Simplifying with trigonometric identities So the output contains sinusoidal terms with**frequencies**at the sum ω1 + ω2 and difference ω1 - ω2 of the two**original frequencies**...### Famous quotes containing the word original:

“Elsa Bannister: The Chinese say “It is difficult for love to last long; therefore one who loves passionately is cured of love, in the end.”

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Elsa: There’s more to the proverb: “Human nature is eternal; therefore one who follows his nature keeps his *original* nature, in the end.””

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