Discrete Poisson Equation

In mathematics, the discrete Poisson equation is the finite difference analog of the Poisson equation. In it, the discrete Laplace operator takes the place of the Laplace operator. The discrete Poisson equation is frequently used in numerical analysis as a stand-in for the continuous Poisson equation, although it is also studied in its own right as a topic in discrete mathematics.

Read more about Discrete Poisson Equation:  On A Two-dimensional Rectangular Grid, Example, Methods of Solution, Applications

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