But what exactly is "traveling in the opposite direction " If you graph out
voltage vs. time, then there is only one direction to go since, absent a
flux capacitor, time marches on in a "forward" direction.
Do they just mean that the voltage is inverted when you set the thing below
zero One can easily achieve that with other modules...

-Monroe

On Thu, May 22, 2008 at 12:28 PM, Brandon Daniel < bdu@... > wrote:

> On Thu, May 22, 2008 at 11:16 AM, Monroe Eskew < monroe.eskew@... <monroe.eskew%40gmail.com>>
> wrote:
> > How can you have negative frequencies Frequency is cycles per second...
> > How do you get a negative number of cyles
>
> IIRC, it's not exactly negative frequency, it's just a flipped phase.
> IE, at 1hz it's one cycle per second with standard phase, as you
> approach 0hz the waveform stops varying, and as you approach "-1hz"
> the waveform travels in the opposite direction, such that at "-1hz"
> it's the same frequency as at 1hz but with inverted phase
> relationship.
>
> -Brandon
>
>
>


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