Scripted HTML version of Foils prepared 11 November 1996

Foil 12 Central Difference Operator with error O(h2)

From CPS615-Basic PDE Solver Discussion and Sparse Matrix Formulation Delivered Lectures of CPS615 Basic Simulation Track for Computational Science -- 8 November 96. by Geoffrey C. Fox *
Secs 247.6
Solve previous equation for 2nd derivative
Combine with similar equation in y direction
Backward difference operator and forward difference operator are O(h)
Higher order operators use more points on the grid (larger stencil) and are more accurate

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