Changes between Version 11 and Version 12 of u/erica/PoissonSolver


Ignore:
Timestamp:
08/19/13 12:49:52 (11 years ago)
Author:
Erica Kaminski
Comment:

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  • u/erica/PoissonSolver

    v11 v12  
    2323[[latex($\triangledown ^2 u = 0$)]]
    2424
    25 The solutions to both Poisson's and Laplace's equations satisfy the Uniqueness theorem (see Griffith's E&M textbook). That is, if the solution satisfies the aforementioned 2 conditions, it is the solution to the equation, and further it is ''unique''.
     25The solutions to both Poisson's and Laplace's equations satisfy the Uniqueness theorem (see Griffith's E&M textbook). That is, if the solution satisfies the aforementioned 2 conditions, it is the ''unique'' solution to the equation.
    2626
    2727As is, the equation is set up to solve for the density (be it charge density, or matter density, etc.) given some potential (e.g. electrical or gravitational, etc.). However, in most situations we have the opposite information about a given system -- given the density, we seek the potential. This requires some numerical techniques to solving this 2nd order differential equation, especially for those systems that do not admit closed-form expressions.