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Topic: efficiently multiplying matrices
Replies: 3   Last Post: Nov 10, 2004 10:19 AM

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marquito

Posts: 11
Registered: 1/25/05
Re: efficiently multiplying matrices
Posted: Nov 10, 2004 10:19 AM
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Peter Boettcher wrote:
> See NDFUN:
&gt; &lt;<a href="http://www.mit.edu/~pwb/matlab/">http://www.mit.edu/~pwb/matlab/</a>&gt;

Thanks for your hints! It turned out that my problem could be reduced
to the 2nd column vektor of the solution - so I actually only needed
to calculate A*x (x = 2nd column vector of B). This was quite easy to
do by creating a sparse diagonal matrix of x.




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