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PROGRAMMING OF FINITE DIFFERENCE METHODS IN …

PROGRAMMING OF FINITE DIFFERENCE METHODS IN MATLAB 5 to store the function. For the matrix-free implementation, the coordinate consistent system, i.e., ndgrid, is more intuitive since the stencil is realized by subscripts. Let us use a matrix u(1:m,1:n) to store the function. The following double loops will compute Aufor all interior nodes.

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