From: Paul Libbrecht <paul@activemath.org>

Date: Tue, 26 Mar 2002 22:04:21 +0100

To: www-math@w3.org, CMoss@tvnz.co.nz

Message-Id: <0B45CF96-40FD-11D6-9930-0003934D43BA@activemath.org>

Date: Tue, 26 Mar 2002 22:04:21 +0100

To: www-math@w3.org, CMoss@tvnz.co.nz

Message-Id: <0B45CF96-40FD-11D6-9930-0003934D43BA@activemath.org>

Hi, >> [...] Our data acquisition occurs in XML, we >> have a template management system for our web content - so what I plan >> to do, is create templates in MathML to "wrap" statistical analysis >> equations around our election data (basically numbers of votes :) and >> process those equations. [...] >> Does anyone know of a MathML engine which does this type of >> calculation already? > > Sure. There are various options. The obvious choices are Maple and > Mathematica, which both import and evaluate either presentation or > content MathML. [...] > What you propose sounds quite reasonable, and especially if you use > content MathML I'd be careful here to distinguish MathML presentation from content. As long as you stay in a relatively restricted field (really restricted) you have hopes to make a translation from presentation to content. In general however, this is bound to fail. At least as soon as you introduce new symbols. I am pretty sure you can easily craft a presentation mathML object whose translation to content may have at least two non-compatible mathematical meanings. If WebEQ, Maple and Mathematica do these translations, they do so with some heuristics with which I would be very careful. Of course, if you insist on presentation and the capability to input this presentation, then you might want to stay with these. And you will need to test permanently your equations. If, however, your formulas are in content MathML then you're sure to have it working in Maple and Mathematica. For the presentation of these formulas in a web-browser, however, you will need some kind of stylesheets. You would do the same job with OpenMath, for example. The latter is slightly more matured than content MathML but has no official presentation language. Connections to mathematical systems which can receive and deliver OpenMath exist (though all alpha). See for example the RIACA projects' pages at http://crystal.win.tue.nl/projects/index.html (among others, one not too poor and OpenSource is the Gap server and client for which you have a Java WebStart demo for both server and client shell. For a more adventurous one, but for statistics, I think they started something with R, an OpenSource statistics software). As of presentations of formulas encoded in OpenMath within straight HTML (and recently to presentation MathML), a number of them are available, among others in the OMDoc repositories and the ActiveMath learning environment. http://www.mathweb.org/omdoc/ http://www.activemath.org/ Hope that helps. Note that I was not very clear what kind of "extraction of formulas" you were thinking of. Otherwise said, I did not understand the kind of document containing formulas which you are planning. PaulReceived on Tuesday, 26 March 2002 17:59:54 UTC

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