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Equations for finite difference, element & volume

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Old   April 1, 2001, 06:00
Default Equations for finite difference, element & volume
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W.L.C.
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I am a college student. Recently, I have worked out the equations for finite difference, finite element and finite volume to calculate the fluid diffusion problem. When I had based on those equations to develop the program for calculation, I found something incorrect in my program, but I don't know whether my equation incorrect or not. Can someone help me to check my equations?

Student WLC
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