Harmonics question

[Steve]

>At 04:34 PM 5/19/98 -0600, you wrote:
>>
>>Simple waveforms are expressible in terms of the strength of each of these
>>harmonics.  A sine wave is simple - it's all fundamental.  A sawtooth wave
>>has all of the harmonics, but the strength of each successive one decreases
>>exponentially.  A triangle wave has only the even harmonics.  A square wave
>>has only the odd harmonics.
>
>Actually, a triangle wave has only odd harmonics, just at lower amplitudes
>than the square wave.

Uggghh.  You're right - I guess it's time for me to get some sleep. :-/

>
>To have all even harmonics would be weird - would that mean that the
>fundamental wouldn't be included? :)  The only waveform I know of with all
>even harmonics would be a full-wave rectified sine.  Is there any simple
>function that contains all even harmonics?  If so, what does the waveform
>look like?
>
>Sean Costello

Just tried it - without the fundamental, it looks like a pair of sawtooth
wave cycles with a concave slope to the "tails" of the saws.


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