The source is here.
- Points of interest
- use of a functor to compute the solution at an arbitrary future time
- convolution with the Green's function
- Background
Solves the 3D time-dependent heat equation
![\[ \frac{\partial u}{\partial t} = c \nabla^2 u(r,t) \]](form_167.png)
by direct convolution with the Green's function,
![\[ \frac{1}{\sqrt{4 \pi c t}} \exp \frac{-x^2}{4 c t} \]](form_168.png)
