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Re: Samples from the Internet

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>

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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