Just working through a problem Acheson's book (From Calculus to Chaos) if anyone knows it.. eq 8.6 in this book..
As he's working through the problem he makes the step of this:
m\int_{t_{1} }^{t_{2}} \left( \dot{y}_{\scriptscriptstyle A }\dot{\eta} - g\eta \right)\,dt
(1)
to...
could anyone offer a decent explanation of how a negative permittivity (dielectric constant) is obtained using the wire-mesh method.. i understand the process with plasmons and metals but this one seems a bit beyond me at the moment <<! any thoughts??:biggrin:
I've been working on a plane wave expansion in spherical harmonics.. as demonstrated in Bohren and Huffman (if anyone's familiar with it_)... I have more or less finished my code in Matlab and I'm putting in values to expand and compare with the exact solution...
in short, I'm having...