I have to disagree and call to your attention the last paragraph of section 5.2
of the SI Brochure, quoted below:
"In both English and in French modifiers such as “squared” or “cubed” are used
in the
names of units raised to powers, and they are placed after the unit name.
However, in
the case of area or volume, as an alternative the modifiers “square” or “cubic”
may be
used, and these modifiers are placed before the unit name, but this applies
only in
English."
Per the SI Brochure, square meter and meter squared have identical meanings (in
English).Three meters squared is identical to three square meters, and
(apparently) only the form three meters squared is acceptable in French,
meaning 3 m².
If we redefine something to have a meaning contrary to the SI Brochure, it is
not SI.
From: Patrick Moore <[email protected]>
To: Stanislav Jakuba <[email protected]>
Cc: USMA <[email protected]>
Sent: Friday, October 28, 2016 8:12 PM
Subject: [USMA 403] Re: Erratum for November-December "Metric Today" - Hectare
Definition
Thank you thank you for clarifying a straightforward error. Also, I notice that
some nonnative speakers of English are deaf to the difference between square
meters and meters squared. For them, I would point out that three meters
squared equal nine square meters. (I am spelling out the symbols only to
capture them as spoken.)
Sent from my iPhone
On Oct 28, 2016, at 7:57 PM, Stanislav Jakuba
<[email protected]<mailto:[email protected]>> wrote:
That was not very clear. Let's use SI, the language of symbols: 100 m^2 is
different than (100 m)^2, the latter 10 000 m^2.
On Fri, Oct 28, 2016 at 7:47 PM, Stanislav Jakuba
<[email protected]<mailto:[email protected]>> wrote:
Martin, you mean 100 metres squared. Then it is 10 000 m2.
On Fri, Oct 28, 2016 at 7:06 PM, John Dunlop
<[email protected]<mailto:[email protected]>> wrote:
Simply transposed... 100 square meters, vs 100 meters square. Simple mistake.
John
At 16:41 2016-10-28, [email protected]<mailto:[email protected]> wrote:
Please note that there was a typo in my "Metric Training & Education" column in
the November-December issue of "Metric Today," in which a hectare was described
as being 100 square meters rather than 10,000 square meters. This error was in
the original source and escaped our proofreading. Don is going to publish an
erratum in the next issue. --Martin Morrison
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