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RE: Default rendering for transpose

From: Stan Devitt <jsdevitt@maplesoft.com>
Date: Fri, 13 Mar 1998 17:40:38 -0500
Message-ID: <DFBA4AED6924D111959A0060975EA7B4342EFD@romulus.maplesoft.on.ca>
To: "'roconnor@uwaterloo.ca'" <roconnor@uwaterloo.ca>, www-math@w3.org
Cc: ion@math.ams.org
Thanks for the feedback.

Yes  indeed, A<SUP>-1</SUP>. is a typo.

For matrix inverse, make use one of one of

<apply><inverse/>
<ci type="matrix"> A </ci>
</apply>

or 

<apply><inverse/>
<matrix>
<matrixrow> <cn> 1 </cn> <cn> 2 </cn> </matrixrow>
<matrixrow> <cn> 3 </cn> <cn> 7 </cn> </matrixrow>
</matrix>
</apply>


Your suggestion regarding supporting columns as well
as rows is of interest, though note that even if no change 
were made, this could still be achieved by using

<declare definitionURL="..." type="function"><ci>mymatrix</ci></declare>
<declare definitionURL="..."
type="function"><ci>mymatrixrow</ci></declare>
<declare definitionURL="..."
type="function"><ci>mymatrixcol</ci></declare>

and

<matrix definitionURL="URL for a modified definition">
<apply><ci>matrixcol</ci> <cn> 1 </cn> <cn> 3 </cn> </apply>
<apply><ci>matrixcol</ci> <cn> 2 </cn> <cn> 7 </cn> </apply>
</matrix>

or 

<apply>
<ci>mymatrix</ci>
<apply><ci>matrixcol</ci> <cn> 1 </cn> <cn> 3 </cn> </apply>
<apply><ci>matrixcol</ci> <cn> 2 </cn> <cn> 7 </cn> </apply>
</apply>


Stan Devitt


> -----Original Message-----
> From:	Russell Steven Shawn O'Connor
> [SMTP:roconnor@wronski.math.uwaterloo.ca]
> Sent:	Friday, March 13, 1998 5:01 PM
> To:	www-math@w3.org
> Cc:	ion@math.ams.org
> Subject:	Default rendering for transpose
> 
> 
> In section 4.4.10.5 the suggested rendering of transpose is
> A<SUP>-1</SUP>.  I really hope this is an error.  The default rending
> should be <SUP>t</SUP>A or A&prime;.  Not something that will be
> confused
> with the inverse matrix operation.
> 
> BTW there is no inverse maxtrix operation.  Should there be one?
> 
> -- 
> Russell O'Connor                           roconnor@uwaterloo.ca
>     <URL:http://www.undergrad.math.uwaterloo.ca/%7Eroconnor/>
> "And truth irreversibly destroys the meaning of its own message"
> -- Anindita Dutta, "The Paradox of Truth, the Truth of Entropy"
Received on Friday, 13 March 1998 17:43:56 GMT

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