Benchmark "lbenchd0" : Laplacian problem in L-shaped domain

Material coefficients:	a1	a2	c
	1.	1.	0.
source term :	f
	0.
Boundary conditions :
Dirichlet - type:	u=ln|x-x_o|	(overall)
	x_o=(-0.01,-0.01)

Typical behavior of estimated relative error:
(Das typische Verhalten des geschaetzten rel. Fehlers)



(Legend)

behavior of exact relative error:
(Das Verhalten des exakten rel. Fehlers)