Recent content by falcao

sorry, my bad, although I probably wouldn't have realized if I looked at it for a full day! :redface:thanks for your help

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...

honestly... any help would be massively appreciated! please!:cry::confused::cry:

even any thoughts on metamaterials in general would be nice

optics - hecht superb

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:

or even if anyone has any examples of such an expansion within a MATLAB framework>?!

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...