Talk:Resistor mesh: Difference between revisions
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:::Given the problem size, even Gauss pivoting will do. Now, for a larger circuit, you would simply use a sparse symmetric solver, and there are many good ones already written. Maybe conjugate gradient would be a nice starting point. See also Maxima solution for an exact value. At least it will help checking other methods ;-) [[User:Capra Hircus|Capra Hircus]] 11:11, 28 August 2012 (UTC)
: The [http://kirr.homeunix.org/electronics/resistor-network-solver/ exact solver] gives 455859137025721/283319837425200, or approximately 1.60899124 Ohm. I now added this problem to [http://kirr.homeunix.org/electronics/resistor-network-solver/?page=examples examples page]. The solver uses repetitive star-mesh transform, and it can list all steps that it took. In this case it takes over a 1000 steps - certainly not something you'd want to do by hand. --[[User:Kirr|Kirr]] ([[User talk:Kirr|talk]]) 11:45, 14 November 2016 (UTC)
:: That exact result matches the result indicated by three implementations here ([[Resistor_mesh#J|J]], [[Resistor_mesh#Maxima|Maxima]], [[Resistor_mesh#Python|Python]]), so presumably your implementation is correct. That said, I see a problems with your solver that incline me to remove your link from this talk page: Your implementation is hosted server side, which means your code is not comparable with the implementations here (which defeats the purpose of this site). I think, if you want us to leave this link here, you should at least provide the implementation details of the solver part of your system which corresponds to this task. (The graphical representation part and web interface parts are not related to this task, however, so - in the context of this particular link - I don't see that we should care about them here.) --[[User:Rdm|Rdm]] ([[User talk:Rdm|talk]]) 15:25, 14 November 2016 (UTC)
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