From: Frédéric WANG <fred.wang@free.fr>

Date: Sat, 14 Aug 2010 00:03:01 +0200

Message-ID: <4C65C115.3070401@free.fr>

To: "www-math@w3.org" <www-math@w3.org>

Received on Friday, 13 August 2010 22:00:17 GMT

Date: Sat, 14 Aug 2010 00:03:01 +0200

Message-ID: <4C65C115.3070401@free.fr>

To: "www-math@w3.org" <www-math@w3.org>

Hi Math WG, First I give as attachment an image for the test Topics/EmbellishedOp/embStretch1 (in the current sample rendering, the parentheses do not seem to stretch). Now, I would like to have some precisions on the way rowspacing works. So suppose we have a mtable of N rows, framespacing="X,X" and rowspacing="Y0, Y2, ..., Y_(n-1)". I understand that rowspacing applies to each "gap" and so we have the following: ^ | X V ----- ///// row0 ///// ----- ^ | Y_(0 mod n) V ----- ///// row1 ///// ----- ^ | Y_(1 mod n) V ----- ///// ... ///// ----- ^ | Y_(N-2 mod n) V ----- ///// row_(N-1) ///// ----- ^ | X V The problem of my interpretation is that "rowpadding" (i.e. spacing inside cells) seems undefined. Roger B. Sidje had a different interpretation. IIUC, he thought that rowspacing applies to each row and so wanted to split the values before and after: ^ | X V ----- ^ | Y_(0 mod n)/2 V row0 ^ | Y_(0 mod n)/2 V ----- ^ | Y_(1 mod n)/2 V row1 ^ | Y_(1 mod n)/2 V ----- ^ | Y_(2 mod n)/2 V ... ^ | Y_(N-1 mod n)/2 V ----- ^ | Y_(N-1 mod n)/2 V row_(N-1) ^ | Y_(N-1 mod n)/2 V ----- ^ | X V Combining the two ideas, we get another possible interpretation: apply rowspacing to each gap but split the values inside and outside the cells: ^ | X/2 V ----- ^ | X/2 V row0 ^ | Y_(0 mod n)/2 V ----- ^ | Y_(0 mod n)/2 V row1 ^ | Y_(1 mod n)/2 V ----- ^ | Y_(1 mod n)/2 V ... ^ | Y_(N-2 mod n)/2 V ----- ^ | Y_(N-2 mod n)/2 V row_(N-1) ^ | X/2 V ----- ^ | X/2 V and there are probably more interpretations... Thanks by advance for your answer(s). -- Frédéric Wang. Website <http://www.maths-informatique-jeux.com/> - Weblog <http://www.maths-informatique-jeux.com/blog/frederic/>

(image/png attachment: embStretch1.png)

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