Question: Discretize the equation below for an arbitrary grid (i, j,k). Use backward difference for time, and forward difference for spatial variables. The time index

Discretize the equation below for an arbitrary grid (i, j,k). Use backward difference for time, and forward difference for spatial variables. The time index (n or n+1) must be included to show if the term is for old or new time-steps. (5 points) - V - . + = BeacB at 2 z 4.

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