Hi all, I am Bin, a PhD student on graphene antenna. I am doing a calculation of dispersion relation of SPP wave propagation on Graphene.
There is a equation like I mentioned in title. Obviously there is no close form expression for x in this equation. So it should be done numerically.
I use function 'SOLVE/Nsolve' to deal with this problem but it turns out a error said 'This system cannot be solved with the methods available to NSolve/solve".
Could you please help me on this ?
Any comments or suggestions would be great.
Thanks in advance.
Best
BIN