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math121b:04-01 [2020/04/01 00:15]
pzhou [Wave equation]
math121b:04-01 [2020/04/01 09:05] (current)
pzhou
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 Hence, we have the following solution to the heat equation (ignoring the initial condition for now) Hence, we have the following solution to the heat equation (ignoring the initial condition for now)
-$1, \z{ and } e^{-n^2 t} \sin(n \theta), e^{-n^2 t} \cos(n \theta) $$+$$1, \z{ and } e^{-n^2 t} \sin(n \theta), e^{-n^2 t} \cos(n \theta) $$
 Thus, if we decompose the initial condition $u_0$ as Thus, if we decompose the initial condition $u_0$ as
 $$ u_0(\theta) = c + \sum_{n = 1}^\infty a_n \cos(n \theta) + b_n \sin(n \theta)$$ $$ u_0(\theta) = c + \sum_{n = 1}^\infty a_n \cos(n \theta) + b_n \sin(n \theta)$$
math121b/04-01.1585725305.txt.gz · Last modified: 2020/04/01 00:15 by pzhou