Hi James,
Many thanks. Even though it is only grade 1 I think the cells 5,6 should be
present to indicate the 'start' of the formula?
Cheers.
John.
-----Original Message-----
From: ueb-ed-bounce@xxxxxxxxxxxxx [mailto:ueb-ed-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Bowden, James
Sent: 27 February 2017 11:20
To: ueb-ed@xxxxxxxxxxxxx
Subject: [ueb-ed] Re: Chemistry Notation query 2 - additional information
Hi John,
Yes, there should be a grade 1 indicator at the beginning of this expression
(unless, of course, you are only doing grade 1 with no contractions).
I'll try and explain the "braille grouping signs" in the final superscript of
your example:
The superscript and subscript signs (and the embellishment signs) all apply to
an "item", a formally defined concept in UEB. See RUEB 11.4, GTM 7.1, or Using
UEB for mathematics, or Using UEB for Science ... (the definition is important
enough to be included in all four of these publications!).
"2+" would not qualify as an item by the standard definition, so "braille
grouping signs" are used to create the item to include both the 2 and the plus.
Notice the braille grouping signs look a little like brackets (as you
observed), in fact you can think of them (perhaps even teach them) as
"invisible brackets".
Without the group signs in your example, only the digit 2 would be included in
the superscript and the plus would be at the normal level, so including the
grouping signs clarifies that both the 2 and the plus are included in the
superscript.
I imagine it will be a similar answer for your first question.
I trust this helps.
With best regards,
James.
-----Original Message-----
From: ueb-ed-bounce@xxxxxxxxxxxxx [mailto:ueb-ed-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Blake, J (Tapton Staff)
Sent: 27 February 2017 10:47
To: ueb-ed@xxxxxxxxxxxxx
Subject: [ueb-ed] Chemistry Notation query 2 - additional information
Duxbury has interpreted an atomic structure with the superscript element of a
particle as being in brackets
5#BF9#EE,FE9<#B16>
On page 26 of the guide it has grade 1 indicators before the subscript and
superscript symbol but Duxbury has not included those - should it have? I
notice that as far as superscripts in brackets are concerned the cell 5 is not
included as in the example on page 32 of the guide.
J Blake
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