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solving the Poisson eq.

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Tetsuya
Matsuno
Click left and right button to put plus and minus charges, respectively. You can drag the mouse to put the charges continuously. The Poisson equation is solved to obtain electric potential generated by the charges. The electric potential is expressed by the positions of the cubes. The algorithm used here is the conjugate gradient method. The boundary condition: "east" and "west": the Dirichlet b.c. "north" and "south": the Neumann b.c. Enjoy(^^)!
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