Numerical dispersion refers to a phenomenon that occurs in numerical simulations of wave propagation, particularly in the context of finite difference methods, finite element methods, and other numerical techniques used to solve partial differential equations. It arises from the discretization of wave equations and leads to inaccuracies in the wave speed and shape. ### Key Characteristics of Numerical Dispersion: 1. **Wave Speed Variations**: In an ideal situation, wave equations should propagate waves at a constant speed.
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