Re: [Phys-L] LC circuit simulation

[Diego Saravia <dsa@unsa.edu.ar>]

2014-08-06 16:13 GMT-03:00, Bernard Cleyet <bernard@cleyet.org>:
> Returning to the original (DS) enquiry,  Eisberg and Lerner consume over 50
> pp. on RC, LC, and RLC circuitry.  Numerically and analytically.
are you speaking about;

Physics: Foundations and Applications
Eisberg, Robert M., Lerner, Lawrence S.
Editorial: McGraw-Hill Inc.,US, 1981

?
I will try to find/buy one



>  The
> Crummer discussed recently (PHYS-L).

I was searching in Phys-L archives and dont find any reference to
crummer (only in 1989)



> > In a long run  the current goes to 0 and half the energy is loss. That
> > kind of simulations do not "conserve energy”.
>
> What?!

if you simulate an LC circuit in sceptre it will eventually stop.




> I compared the Crummer and JD’s over 50 cycles (harmonic oscillator) and
> found little (none, IIRC).    There are other AJP articles including one
> that has a simple “time saver”.   It finds the speed to adjust the step
> size, thus improving efficacy (time and accuracy function)

do you have a reference for that article?


> ****   e.g.   Eric Ayers at Chico State;  IIRC, is writing the text for his
> class.

It seems that his server have an error, I wrote him.



Thanks a lot!