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Re: Function matrix/vector assembly


From: Francesco Potortì
Subject: Re: Function matrix/vector assembly
Date: Thu, 09 Aug 2012 08:59:41 +0200

>I am trying to assemble a function into a matrix or a vector but I have not
>found a way to do so except for typing it out manually, which is not
>possible as the it would be around 100 long and wide and changes after
>every timestep. The following represents what I am trying to do:
>
>f=@(x) [x^2 x 1]
>then I want to put a number of these into a vector so that the final vector
>would look like:
>vect=@(x) [x^2 x+x^2 1+x 1]
>Here I have added have done something like:
>vect=@(x) [f(x)(1) f(x)(2)+f(x)(1) f(x)(3)+f(x)(2) +f(x)(3)]
>So basically having a vector with f in 1 to 3 added to f in positions 2 to
>4. Obviously this would have to run in a loop as it is well over 100 wide.

As far as I am concerned, you should try to explain it better: I read it
carefully, but could nt make out what you need.

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