From: Roger I Martin PhD <hypernexdev@hypernexinc.com>

Date: Thu, 03 Feb 2005 14:18:10 -0500

Message-ID: <420278F2.5000302@hypernexinc.com>

CC: www-math@w3.org

Date: Thu, 03 Feb 2005 14:18:10 -0500

Message-ID: <420278F2.5000302@hypernexinc.com>

CC: www-math@w3.org

>It seems to me that others are thinking along these >lines as well. (Set me straight if you think >otherwise). I am still exploring available tools and >trying to define exactly what I need to build for >myself. > > > Maybe an example would clarify if we are thinking along the same lines: Are you interested in having douments with for example http://mathworld.wolfram.com/NURBSCurve.html written in mathml and then a system to transform it: <apply> <eq/> <apply> <csymbol type="vector">C</csymbol> <ci >t</ci> </apply> <apply> <divide/> <apply> <sum /> <bvar> <ci type="integer">i</ci> </bvar> <lowlimit> <cn>0</cn> </lowlimit> <uplimit> <ci type="integer">n</ci> </uplimit> <apply> <times/> <apply> <selector/> <ci>w</ci> <ci>i</ci> </apply> <apply> <selector/> <ci type="vector">d</ci> <ci>i</ci> </apply> <apply> <csymbol>N</csymbol> <ci type="integer">i</ci> <ci type="integer">p</ci> <apply> <selector/> <ci>knot</ci> <ci type="integer">i</ci> </apply> <ci>t</ci> </apply> </apply> </apply> <apply> <sum /> <bvar> <ci type="integer">i</ci> </bvar> <lowlimit> <cn>0</cn> </lowlimit> <uplimit> <ci>n</ci> </uplimit> <apply> <times/> <apply> <selector/> <ci>w</ci> <ci>i</ci> </apply> <apply> <csymbol>N</csymbol> <ci type="integer">i</ci> <ci>p</ci> <apply> <selector/> <ci>knot</ci> <ci type="integer">i</ci> </apply> <ci>t</ci> </apply> </apply> </apply> </apply> </apply> to compilable and runnable at runtime Java code: public javax.vecmath.GVector C(double t) { javax.vecmath.GVector C=null; C=divide((new com.pombi.mathml.lang.OperatorAdapter(){ public javax.vecmath.GVector vectorSum(double t){ javax.vecmath.GVector sum=new javax.vecmath.GVector(3); for(int i=0;i<=n;i++) { sum.add(times(new Object[]{w[(int)i],d[(int)i],N(i, p, knot, t)})); } return sum; }}).vectorSum(t),(new com.pombi.mathml.lang.OperatorAdapter(){ public double sum(double t){ double sum=0.0; for(int i=0;i<n;i++) { sum+=((w[(int)i]*N(i, p, knot, t))); } return sum; }}).sum(t)); return C; } Then have a bean or web service environment to use the equation in numeric modeling and solutions? If so we are thinking along the same lines. I'm aware of many cases where numeric computer code does not necessarily reflect the intend of the physicist's/scientist's more abstract mathematical model or produce the correct results:-) And said code is not the place to start working on the model or new functional implementation. Most of the time the code cannot be trusted and starting from scratch is recommended. Applying a more abstract level that directly matches and retains the intentions of physicists/scientists while being able to utilize cpus for computation is very attractive. r, RogerReceived on Thursday, 3 February 2005 19:16:05 UTC

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