Consider the diffusion equation that the scheme is stable. Show also that the implicit scheme is unconditionally

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Consider the diffusion equation t = 82 u   Let u ||

u(jAx, nAt). The explicit scheme for discretisation ,,n+1 un At n+1 - n = +1-2-1 whereas the implicit scheme that the scheme is stable. Show also that the implicit scheme is unconditionally stable. 

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