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3316数学中等derivationmedium

Decay of the First Sine Mode

题目

For the heat equation ut=1uxxu_t=1u_{xx} on 0<x<π0<x<\pi with zero boundary conditions, the initial condition is u(x,0)=sin(1x)u(x,0)=\sin(1x). What is u(x,t)u(x,t)?

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