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Question regarding <ci>

From: <Maksims_Zizkuns@exigengroup.lv>
Date: Fri, 23 Nov 2001 10:00:40 -0500 (EST)
To: www-math@w3.org
Message-ID: <OFB5C38D6F.3869F8AC-ONC2256B0D.0051C86E@exigengroup.lv>
Hello,
can anyone explain in a few words what could be a meaning of the following 
MathML piece in case of computing application:

<math>
        <apply>
                <plus/>
                <cn>2</cn>
                <ci>x</ci>
        </apply>
</math>

as far as I understand this should be rendered like 2+x
but what if rendering is not required, and the only task is the result 
computing ?

What the X actually is in this case?
Is it identifier of something declared somewhere else by <declare> 
construction or anything also?
Can <ci> identifier obtain it's value in a way other than <declare>ing ?

Thank you 
Max
Received on Friday, 23 November 2001 10:17:31 GMT

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