From: <juanrgonzaleza@canonicalscience.com>

Date: Mon, 27 Nov 2006 06:11:28 -0800 (PST)

Message-ID: <3585.217.124.88.143.1164636688.squirrel@webmail.canonicalscience.com>

To: <www-math@w3.org>

Cc: <davidc@nag.co.uk>

Date: Mon, 27 Nov 2006 06:11:28 -0800 (PST)

Message-ID: <3585.217.124.88.143.1164636688.squirrel@webmail.canonicalscience.com>

To: <www-math@w3.org>

Cc: <davidc@nag.co.uk>

David Carlisle said: > >> I am really confused. > > You cited several parts of the spec, but you didn't really say what > parts of them you found confusing. For instance how can <csymbol> be intended to denote symbols with an _external_ definition if the definition location doesn't matter at the same time. I am just curious, what is the difference between <sin/> <csymbol definitionURL="http://www.w3.org/TR/MathML2/appendixc.html#cedef.sin ">sin</csymbol> <ci definitionURL="http://www.w3.org/TR/MathML2/appendixc.html#cedef.sin ">sin</ci> > In general if you have > f(x) > then you'd probably expect to use ci for f as a generic identifier, and > if you have > dx/dt > (and didn't want to use <diff/> for some reason) you'd expect to use > csymbol for diff. > > But it depends on circumstances, if the math fragment is in a book and > says on page one, let f denote Ramanujan's F-function. > http://mathworld.wolfram.com/Ramanujanf-Function.html > ... > then you may want to use csymbol for f > > Similarly if you are discussing various definitions of differential > operator over different domains, you may want to use <ci>diff</ci> to > refer to a generic reference to all of them (or at least one > unspecified one) It's just a matter of degree, and you can't really say > anything at all about the usage in a small fragment taken out of > context. What about next? <apply><ci>diff</ci> arguments</apply> <apply><csymbol>diff</csymbol> arguments</apply> <apply><diff/> arguments</apply>Received on Monday, 27 November 2006 14:11:53 GMT

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