GNU bug report logs - #16706
emacs 24.3.1; calc/A command

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From: Jay Belanger <jay.p.belanger <at> gmail.com>
To: Bart Nielsen <bart.utahman <at> gmail.com>
Cc: jay.p.belanger <at> gmail.com, 16706 <at> debbugs.gnu.org
Subject: bug#16706: emacs 24.3.1; calc/A command
Date: Mon, 10 Feb 2014 21:41:42 -0600

Hi Bart,

> calc - single variable statistics tells me:
>
>    Another commonly used mean, the RMS (root-mean-square), can be
> computed for a vector of numbers simply by using the `A' command.
>
>
> So:
>
> I believe the RMS value for the vector [21 23 25 25] is 23.5584379788.
> (RMS means ‘the root, of the mean, of the square — so

Of course, rms means "Richard M Stallman", too!

But as you noted, the manual is wrong.  I'm really surprised that such
an error has been around so long.  "A" should stand for "absolute
value", which for a vector should be the norm.
Offhand, I don't see the RMS function in Calc.  If it isn't there, I'll
(for now) remove that paragraph from the manual, and after the Emacs
feature freeze is over I'll put in the RMS function.  Then I'll put the
paragraph back in the manual, with the correct keybinding.

Jay

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