From: Michael Kohlhase <m.kohlhase@iu-bremen.de>

Date: Tue, 30 Sep 2003 16:23:18 +0200

Message-ID: <3F7991D6.4010001@iu-bremen.de>

To: "Jiri.Jirat" <jiratj@systinet.com>

Cc: www-math@w3.org

Date: Tue, 30 Sep 2003 16:23:18 +0200

Message-ID: <3F7991D6.4010001@iu-bremen.de>

To: "Jiri.Jirat" <jiratj@systinet.com>

Cc: www-math@w3.org

Jiri.Jirat wrote: > > Hello, > I have some questions about content MathML. > > How would you write the following equations in content MathML?: > > 1) > > E = 10-200 keV > > (energy E is in range 10 to 200 keV) I would use a csymbol element for the range. The problem is that you need to do something with the definitionURL attribute. One way is to supply a document that will define what you mean by this, this could be in a variety of formats for all the MathML spec cares, e.g. an OpenMath Content Dictionary (see http://www.openmath.org), or an OMDoc document (see http://www.mathweb.org/omdoc), or a plain html+mathml document. <apply> <eq/> <ci>E</ci> <apply> <times> <apply> <csymbol definitionURL="http://www.example.org/ranges#range"/> <cn>20</cn> <cn>100</cn> </apply> <csymbol definitinURL="http://.../units/energy/keV"> <mo>keV</mo> </csymbol> </apply> </apply> > > > > 2) > > / dy \ / dz \ > | -- | = | -- | > \ dx / z \ dx / y > > ie.: dy/dx when z is constant > is equal to > dz/dx when y is constant. > > BTW.: how to express in content MathML, that > "x" is constant? > > > Thank you very much for your suggestions. > I would probably also use appropriate csymbol elements as well, I do not think that there are pre-defined symbols in MathML. hope this helps. Michael > Regards > Jiri Jirat > > > -- ------------------------------------------------------------------------- Prof. Dr. Michael Kohlhase, Office: Research 1, Room 62 Professor for Computer Science Campus Ring 12, School of Engineering & Sciences D-28758 Bremen, Germany International University Bremen tel/fax: +49 421 200 3140/3103 http://www.cs.cmu.edu/~kohlhase e-mail: <m.kohlhase@iu-bremen.de> --------------------------------------------------------------------------Received on Tuesday, 30 September 2003 10:23:12 GMT

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