Transient Nonlinear Heat Equation
Solve a nonlinear heat equation 
over a region with a cutout and a Robin boundary condition.
Specify a region.
Specify an anisotropic nonlinear heat equation with a Robin boundary condition.
Specify Dirichlet boundary conditions at the left and right ends of the domain.
Specify initial conditions.
Solve the equations.
Visualize the the solution at 
as a contour plot.
Visualize the the solution at 
in 3D.
