[Jprogramming] Matrix equation

"Papp Erik Tamás" Papp.Erik at ybl.szie.hu
Wed Aug 20 12:00:22 UTC 2014


Thank you for your answer. Yes I try to write a J program for 3D similarity transformation.

Erik Papp

----- Eredeti levél (Original Message) -----
Feladó: Henry Rich <HenryHRich at nc.rr.com>
Dátum: Szerda, Augusztus 20, 2014 1:39 du
Tárgy: Re: [Jprogramming] Matrix equation
Címzett: programming at jsoftware.com

> I have no idea what this equation is trying to do, but the pattern
> 
> NbI * (...) * NbI
> 
> looks like it's trying to be a similarity transformation, but 
> one of the 
> outer matrices would need to be the inverse of the other.
> 
> Just wondering,
> 
> Henry Rich
> 
> On 8/20/2014 5:24 AM, Raul Miller wrote:
> > I think what you are asking about is: where do you put the 
> parenthesis?>
> > That suggests:
> >
> > dX=: ((NbI-NbI mp CT mp NcI mp C mp NbI)mp W)+NbI mp CT mp NcI 
> mp Wx
> >
> > In other words, you almost had it.
> >
> > Thanks,
> >
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