From: Roger L. Costello <costello@mitre.org>

Date: Sun, 20 Jul 2003 07:36:56 -0400

Message-ID: <3F1A7ED8.2C145AB2@mitre.org>

To: Stan Devitt <jsdevitt@stratumtek.com>, www-math@w3.org, "Costello,Roger L." <costello@mitre.org>

Date: Sun, 20 Jul 2003 07:36:56 -0400

Message-ID: <3F1A7ED8.2C145AB2@mitre.org>

To: Stan Devitt <jsdevitt@stratumtek.com>, www-math@w3.org, "Costello,Roger L." <costello@mitre.org>

Thanks Stan. Let me see if I understand you correctly. Are you saying that when defining this set in MathML: {i, c | c = i * 2.54} After specifying the set contents I need to specify the "set variables" (in this case they are "i" and "c")? e.g., <set> <bvar>...</bvar> <condition> ... </condition> <list><ci>i</ci><ci>c</ci></list> <-- specify set variables here </set> Is the purpose of: <list><ci>i</ci><ci>c</ci></list> to indicate "these are the set variables"? Is there an advantage of using <list>...</list> rather than set, i.e., <set><ci>i</ci><ci>c</ci></set> Thanks! /Roger Stan Devitt wrote: > > This type of set constructor should have a final argument which is > a sample of the thing being constructed as in > > <set> > <bvar><ci>i</ci></bvar> > <bvar><ci>c</ci></bvar> > <condition> > <apply><eq/> > <ci>c</ci> > <apply><times/> > <ci>i</ci> > <cn>2.54</cn> > </apply> > </apply> > </condition> > <list><ci>i</ci><ci>c</ci></list> > </set> > > They should be grouped in some way, for example, using a set, > list or vector. > > Stan Devitt > StratumTek > > Roger L. Costello wrote: > > >Hi Folks, > > > >Suppose that I want to represent the set of all inch/centimeter pairs, > >e.g, > > > > {i, c | c = i * 2.54} > > > >Examples in this set include: > > > > (1.0, 2.54), (2.0, 5.08), etc > > > >Is this the correct way to represent this set in MathML: > > > ><math> > > <declare type="set"> > > <ci>S<ci> > > <set> > > <bvar><ci>i</ci></bvar> > > <bvar><ci>c</ci></bvar> > > <condition> > > <apply> > > <eq/> > > <ci>c</ci> > > <apply> > > <times/> > > <ci>i</ci> > > <cn>2.54</cn> > > </apply> > > </apply> > > </condition> > > </set> > > </declare> > ></math> > > > >I think that this is correct. My only hesitation is that perhaps I need > >parentheses around (i,c)? e.g., > > > > {(i, c) | c = i * 2.54} > > > >And likewise in the MathML representation place parentheses? /Roger > > > > > >Received on Sunday, 20 July 2003 07:39:17 GMT

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