Finite Difference Approximations
Abstract
Let us begin by explaining the “finite difference” (FD) of the finite difference time domain (FDTD) methodology. We review the basic concepts and mathematical properties of different FD expressions, and introduce the basic concepts and the notation to be used throughout this book. Topics: • Elementary finite difference expressions • Nonstandard finite difference expressions • Computational molecules
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KEYWORDS
Molecules

Differential equations

Finite-difference time-domain method

Algorithm development

Maxwell's equations

Physical phenomena

Process modeling

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