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*From*: "Paul O. Johnson" <hodgepoj@YAHOO.COM>*Date*: Fri, 29 Jun 2001 06:15:46 -0700

John, Isn't that what I said? If harmonic function is a sum of sine

waves, then harmonic motion is repetitive motion that varies with time

in any way, i.e., a fourier sum of sine waves.

P O Johnson

--- "John S. Denker" <jsd@MONMOUTH.COM> wrote:

At 11:36 AM 6/28/01 -0700, Paul O. Johnson wrote:

I believe that Harmonic Motion is any motion that is repetitive andin

follows the same closed path in one direction or the same open path

two directions (forth and back). The rate of motion (velocity) canvary

with time in any way.motion

Simple Harmonic Motion is Harmonic Motion in which the rate of

varies sinusoidally with time.

I don't think that's the usual definition.

According to the Century dictionary

http://216.156.253.178/CENTURY/04/index04.djvu?djvuopts&page=53

-- A harmonic function is a sum of sine waves.

-- A simple harmonic function is a single sine wave.

-- Simple harmonic motion is expressible as a simple harmonic

function of

time.

... which sounds about right to me.

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