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Date: Fri, 22 Nov 2019 20:19:59 +0100
From: "N (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Re: Microwave PCB layout simulation or How to eat
 all your processing power in 3 easy steps --> FEM solver
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> > I *hated* that we didn't have a good answer for that. I spent a lot of
> > time looking at FEM (finite element modeling). There are a lot of open
> > source FEM solvers that are open source. Too many really because
> > people keep writing new ones to full fill phd thesis requirements.

Might be able to help out with FEM solver if needed. Started to work on clearance a few years ago and one of the reasons I did not had time yet is because I studied some more mathematics.

I might be able to solve equations but lack background in integration theory and functional analysis so I still have some problem bounding the calculation error. I was thinking about it a few months ago but decided I had enough with the mathematics this spring, I prefer to spend some time on night clubs instead.

> > The FEM we care about is called FDTD (finite-difference time-domain)
> > aka Yee's method.

Methods to solve partial differential equation I know about is FEM (Finite Element Method), finite difference method and finite volume method. I have only used FEM but guess some of the mathematics is same for the methods.


Regards Nicklas Karlsson