~ × & Σ …

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Graham C. Williams
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Re: ~ × & Σ …

Post by Graham C. Williams » Thu Mar 26, 2009 9:54 am

Hi.

How have you created a negative frequency?

Graham.
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Re: ~ × & Σ …

Post by WebPilot » Thu Mar 26, 2009 8:37 pm

~ Thanks for this. Very fun to watch, Forrest.

You are welcome, Mike. Glad to read you are enjoying it.
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Re: ~ × & Σ …

Post by WebPilot » Thu Mar 26, 2009 10:15 pm

~ How have you created a negative frequency?

Elementary Two-Sided, DC-Centered FFT my dear Watson.
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Re: ~ × & Σ …

Post by WebPilot » Fri Apr 03, 2009 4:16 am

Clockwise rotation ... when viewed from top looking down toward -z axis.
trajectory.gif
trajectory.gif (8.4 KiB) Viewed 1550 times
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Re: ~ × & Σ …

Post by WebPilot » Mon Jun 22, 2009 9:26 pm

Image
the plot of the product, (1-cos(x)) × (1-sin(x)) for 0 ≤ x ≤ 2 π
Image

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Re: ~ × & Σ …

Post by WebPilot » Tue Jun 23, 2009 5:06 am

After seeing the behavior of the former, I began to 'play around' with sinusoids.

I plotted multiples and sums of multiples

Image

Something like the last plot was what I was hoping to find.
Last edited by WebPilot on Wed Jun 24, 2009 12:48 am, edited 1 time in total.
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Re: ~ × & Σ …

Post by WebPilot » Tue Jun 23, 2009 4:46 pm

Further investigation of the brown line by varying the additive coefficient:

Image
Image

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Re: ~ × & Σ …

Post by WebPilot » Wed Jun 24, 2009 6:22 am

The latter

Image

is remarkably similar to the published v1 pressure record.
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Re: ~ × & Σ …

Post by WebPilot » Wed Jun 24, 2009 5:44 pm

Image
Image

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Re: ~ × & Σ …

Post by Mike Everman » Fri Jun 26, 2009 12:59 am

Oh, that's just fantastic!
Mike
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Re: ~ × & Σ …

Post by WebPilot » Sun Jun 28, 2009 4:17 pm

Image
Image

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