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Partial Differential Equation : Diffusion Equation and Explicit Series Solution

Consider the diffusion equation
ut = ku.xx for 0 < < pi and t > 0 with the boundary conditions
ux(0, t) = 0 and u(pi, t) = 0
and the initial condition
u(x,0) = 1.
(a) Find the separated solutions satisfying the differential equation and boundary conditions.
(b) Use these solutions to write an explicit series solution to the differential equation satisfying the boundary conditions and the initial condition.

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A Diffusion Equation and Explicit Series Solution are investigated. The solution is detailed and well presented. The response was given a rating of "5" by the student who originally posted the question.

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