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Topic: three 3D matrix multiplication
Replies: 4   Last Post: Jan 7, 2013 10:27 AM

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James Tursa

Posts: 2,071
Registered: 8/5/09
Re: three 3D matrix multiplication
Posted: Jan 7, 2013 2:48 AM
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"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <kcbcq6$g99$1@newscl01ah.mathworks.com>...
> "Jeyakumar " <jeymagnetron@gmail.com> wrote in message <kcbcb8$em6$1@newscl01ah.mathworks.com>...
> > hi ,
> > my problem is that i have 3 3D matrices A(4,1,1), B(1,4,1) and C(1,1,4) respectively. i wanna perform matrix multiplication i.e A*B*C such that the resulting matrix shud be of dimension
> > 4-by-4-by-4 i.e 4x4x4 cube.

>
> This is NOT matrix-multiplication. This operation is called tensor product.
>
> Try
> bsxfun(@times, bsxfun(@times, A, B), C)
>
> Bruno


Or just:

bsxfun(@times, A*B, C)

James Tursa



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