1L_2 Error: [0., 0.144338]
2L_2 Residual: 2.34521
3Taylor approximation converging at order 1.00
4L_2 convergence rate: [-0.20, -0.037]
5WARNING! There are options you set that were not used!
6WARNING! could be spelling mistake, etc!
7Option left: name:-petscspace_poly_type value: pminus_hdiv
8