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Re: Clouds are made of water

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On Wed, 09 Mar 2016 00:14:26 -0500, \"Fakey's\" dogwhistle holder living
at 5907 Stanton Ave., Pittsburgh, PA (aka Teh Mop  Jockey), socked up as
5907 Stanton Avenue, Pittsburgh, PA 15206-2117 wrote:

> On Tue, 08 Mar 2016 23:59:33 -0500, Friendly Neighborhood Vote Wrangler
> Emeritus <FNVWe@altusenetkooks.xxx> wrote:
> 
>> Repeating the same stupid non sequitur
> 
> we noticed.
> 
> http://forum.allaboutcircuits.com/threads/sample-rate-and-rms.80042/
> 
> "Thank you all for your tips and insights!
> 
> I've played some more with MATLAB during the couple of days and here's
> where I've gotten to. Ok, I plotted the sine wave in accordance with the
> sampling rate AND plotted the RMS (which is a straight line)."
> 
> 
> "No, you can work out the RMS value of a sine wave by sampling at almost
> any frequency. It's safe to use any frequency > 2F, but as long as you
> avoid subharmonics, F and 2F, you can use any other frequency."

Is he confused about the continuous solution vs. the discrete solution?

As seen in TOW:

The RMS value of a set of values (OR A CONTINUOUS-TIME WAVEFORM) is the 
square root of the arithmetic mean of the squares of the values, or the 
SQUARE OF THE FUNCTION THAT DEFINES THE CONTINUOUS WAVEFORM.
[emph. added]

So there's a discrete definition AND a continous definition.  Guess which 
one is more correct for a continuous, periodic waveform?

For a sine wave, the RMS is a/sqrt(2).  There is no "t" in this equation.

And no, you can't claim to be using the discrete definition, then start 
talking about "instantaneous averages".  Seriously, WTF?

-- 
 -v

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Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-07 18:12 +0100
  Re: Clouds are made of water "\"Fakey's\" dogwhistle holder living at 5907 Stanton Ave., Pittsburgh, PA (aka Teh Mop  Jockey), socked up as 5907 Stanton Avenue, Pittsburgh, PA 15206-2117" <root@127.0.0.1> - 2016-03-07 12:27 -0500
  Re: Clouds are made of water James McGinn <jimmcginn9@gmail.com> - 2016-03-07 10:09 -0800
    Re: Clouds are made of water Sergio <invalid@invalid.com> - 2016-03-07 14:33 -0600
    Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-08 06:18 +0100
      Re: Clouds are made of water James McGinn <jimmcginn9@gmail.com> - 2016-03-07 21:49 -0800
        Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-08 09:03 +0100
          Re: Clouds are made of water James McGinn <jimmcginn9@gmail.com> - 2016-03-08 00:57 -0800
            Re: Clouds are made of water Bite My Shiny Metal Ass <bender@the.future> - 2016-03-09 00:30 +0800
            Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-08 17:29 +0100
              Re: Clouds are made of water James McGinn <jimmcginn9@gmail.com> - 2016-03-08 08:50 -0800
                Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-09 05:59 +0100
                Re: Clouds are made of water "\"Fakey's\" dogwhistle holder living at 5907 Stanton Ave., Pittsburgh, PA (aka Teh Mop  Jockey), socked up as 5907 Stanton Avenue, Pittsburgh, PA 15206-2117" <root@127.0.0.1> - 2016-03-09 00:14 -0500
                Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-09 20:18 +0100
                Re: Clouds are made of water vallor <vallor@cultnix.org> - 2016-03-09 23:43 +0000
                Re: Clouds are made of water "\"Fakey's\" dogwhistle holder living at 5907 Stanton Ave., Pittsburgh, PA (aka Teh Mop  Jockey), socked up as 5907 Stanton Avenue, Pittsburgh, PA 15206-2117" <root@127.0.0.1> - 2016-03-09 18:58 -0500
                Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-10 04:43 +0100
                Re: Clouds are made of water "\"Fakey's\" dogwhistle holder living at 5907 Stanton Ave., Pittsburgh, PA (aka Teh Mop  Jockey), socked up as 5907 Stanton Avenue, Pittsburgh, PA 15206-2117" <root@127.0.0.1> - 2016-03-09 23:53 -0500
                Re: Clouds are made of water snipeco.2@gmail.com (Sn!pe) - 2016-03-10 09:44 +0000
                Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-10 18:26 +0100
                Re: Clouds are made of water snipeco.2@gmail.com (Sn!pe) - 2016-03-10 17:59 +0000
                Re: Clouds are made of water Bite My Shiny Metal Ass <bender@the.future> - 2016-03-11 02:03 +0800
                Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-11 08:29 +0100
                Re: Clouds are made of water snipeco.2@gmail.com (Sn!pe) - 2016-03-11 07:48 +0000
                Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-13 06:54 +0100
                Re: Clouds are made of water snipeco.2@gmail.com (Sn!pe) - 2016-03-13 08:20 +0000
                Re: Clouds are made of water Friendly Neighborhood Vote Wrangler Emeritus <FNVWe@altusenetkooks.xxx> - 2016-03-14 05:27 +0100
                Re: Clouds are made of water James McGinn <jimmcginn9@gmail.com> - 2016-03-08 21:25 -0800
                Re: Clouds are made of water Sergio <invalid@invalid.com> - 2016-03-08 23:45 -0600

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