Some questions about circuit simulation


To ng-spice-devel@ieee.ing.uniroma1.it
From Paolo Nenzi <pnenzi@ieee.ing.uniroma1.it>
Date Tue, 19 Sep 2000 16:54:37 +0200 (CEST)
Delivered-To mailing list ng-spice-devel@ieee.ing.uniroma1.it
In-Reply-To <39C66D01.1BAA745C@analog.com >
Mailing-List contact ng-spice-devel-help@ieee.ing.uniroma1.it; run by ezmlm
Reply-To ng-spice-devel@ieee.ing.uniroma1.it

Hi all, 

These are my first questions on circuit simulations techniques. 
Circuit simulators like spice use Modified Nodal Analisys (MNA) to solve
linear and linearized circuits. The solution process consists mainly in
the solution of a linear system Ax=B. There are "direct" methods and
"iterative" ones. What are the differences between the two and what are
the peculiarities and drawbacks ? Are there alternative solutions to the
tho classes of methods stated above ?


Thanks,
Paolo 


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