Overview of methods

Overview of methods

One approach is to discretize the space in terms of grids (both SKM151F orthogonal, and non-orthogonal) and solving Maxwell's equations at each point in the grid. Discretization consumes computer 2SK180 memory, and solving the equations takes significant time. Large scale CEM problems face memory and CPU limitations. As of 2007, CEM problems require MR20T1 supercomputers, high performance clusters, vector processors and/or parallel computer. Typical formulations involve either time-stepping through the equations over the 2SC557B whole domain for each time instant; or through banded matrix inversion to calculate the weights of basis functions, when modeled by finite element methods; or matrix products when using transfer matrix TDA1023 methods; or calculating integrals when using method of moments (MoM); or using fast fourier transforms, and time iterations when calculating by the split-step method or by BPM.