From: Bernardo D'Auria <dauria@diima.unisa.it>

Date: Thu, 19 Sep 2002 12:11:36 +0200

To: <www-math@w3.org>

Message-ID: <000901c25fc4$f00dcc20$b0a3cdc1@diima.unisa.it>

Date: Thu, 19 Sep 2002 12:11:36 +0200

To: <www-math@w3.org>

Message-ID: <000901c25fc4$f00dcc20$b0a3cdc1@diima.unisa.it>

Hello, I'm Bernardo and I worked in a project that deals with the publication of mathematical exercises on the net. At the moment these exercises, that may be solved on-line with the support of the system, are displayed by using images while answers are written by using textual expressions. Now I'm going to change the representation of formulas by using MathML, probably I will use Web Equation controls and/or Mathplayer plugin to do my work (if someone may suggest other solution I thank him/her in advance) However before doing this changing I looked at MathML and I noticed that probably there is somthing missing that I consider important. That is why I'm writing you. The structure of the MathML expressions let you to modify them using other languages such as JavaScript, and moreover they may include some action inside them by using <maction>. However often, at least in the cases we used in our project, it is important to put the actions that manipulate mathematical expression outside. That is because often the actions are complex and may depend on information not contained in the formulas. So according to me it will be very interesting to introduce in the <maction> command also a way to invoke some extern script functions. As an example, imagine to have an equation and you can move the addends by clicking them from the right side to the left one and viceversa, how can you do this? You my add to each addend the action that is invoked on the click and then the extern function may manipulate the expression knowing which part has been clicked. Naturally the new expression, produced by the function, has to contain adjusted <maction> instuctions in order to continue this process. I believe that such kind of interactions MathML->Script Languages (and not only Script Languages -> MathML) should be considered and standardized. If someone may suggest me alternative solutions or give me information about these kind of problems I will appreciate very much, and I apologize if the things I said may be not important or well known. Thanks, Bernardo *********************************************************** Ing. Bernardo D'Auria DIIMA - University of Salerno via Ponte don Melillo 84084 Fisciano (SA) Italy tel. +39 089 964264 fax. +39 089 964191 e-mail <mailto:dauria@diima.unisa.it> dauria@diima.unisa.it ***********************************************************Received on Thursday, 19 September 2002 06:11:34 UTC

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