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MathGroup Archive 2000

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RE: Re: matrices, dot products and convergents ofcontinued fractions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg23458] RE: [mg23438] Re: [mg23402] matrices, dot products and convergents ofcontinued fractions
  • From: "Higinio Ramos Calle" <higra at gugu.usal.es>
  • Date: Thu, 11 May 2000 00:54:09 -0400 (EDT)
  • References: <200005100632.CAA17829@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

----- Original Message -----
From: Richard Finley <rfinley at medicine.umsmed.edu>
To: mathgroup at smc.vnet.net
Subject: [mg23458] [mg23438] Re: [mg23402] matrices, dot products and convergents
ofcontinued fractions


> Matt,
> I am using Mathematica 4.0, although I don't think that makes a
difference??  Anyway, sorry that I digressed from your original question but
the answer is:
> if you have a list of matrices: list =
{matrix1,matrix2,matrix3,....matrixn} then you can take the dot product by:
>
> MapThread[Dot, list, 0]
>
> Hope that helps.  regards, RF
>
> >>> "Matt Herman" <Henayni at hotmail.com> 05/07/00 01:33PM >>>
> >Richard,
> >
> >Do you have Mathematica 4 or 3? On mathematica 3, continuedfraction[a]
gives
> >the expansion that looks like1+1/a+1/b....
> >So anyway, my problem is how to take the Dot product of a LIST of
matrices!
> >Dot works with [matrice1,matrice2,...,matricen], but not with
> >Dot[{matrice1,matrice2,matrice3,...,matricen}]!
> >
> >Matt
>

Another way you may do the task is simply :
Dot@@list

Higinio Ramos





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