Basic HTML version of Foils prepared 6 December 96
Foil 9 Comments on Computational Electromagnetics
From Full Matrices - December 4, 1995 CPS615 Basic Simulation Track for Computational Science -- Fall Semester 95. byGeoffrey C. Fox, Nancy J. McCracken
Read the literature (for example, Computer Physics Communications, Nov. 1991) for choices of and . Clearly one will take as functions for which can be easily calculated.
Comments:
With N expansion functions - the computational work is
if We have N grid points
with best methods, work is
with worst methods, work is
However, wave equations have "oscillating" solutions. These could be very hard to represent numerically with finite differences and grid points but could be just fine if oscillation embodied as oscillating expansion functions.
