3 7.24, §3 Transform

Transform the PDE:

\begin{displaymath}
\strut u_t = \kappa u_{xx}
\quad \stackrel{\hbox{Table 6.3...
...u - \overline{\smash{u(x,0)}\vphantom{.}} = \kappa \hat u_{xx}
\end{displaymath}

Transform the BC:

\begin{displaymath}
u_x = g(t)
\quad
\Relbar\joinrel\Relbar\joinrel\Relbar\...
...l
\Relbar\joinrel\Longrightarrow
\quad
\hat u_x = \hat g(s)
\end{displaymath}