The two-dimensional heat equation
one can show that u satis es the two dimensional heat equation u t = c2 u = c2(u xx + u yy) Daileda The 2-D heat equation. Homog. Dirichlet BCsInhomog. ... which is just the double Fourier series for f(x;y). Daileda The 2-D heat equation. Homog. Dirichlet BCsInhomog. ... If we know the sine series expansion for f 2(x) on [0;a], then we can use ...
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