a = 2.500000 b = 0.000000 Beginning convergence study... Cycle 0 Number of active cells:256 Number of degrees of freedom:1089 Assembling matrix and right hand side...done (0.215813s) Solving system...done (0.032218s) Cycle 1 Number of active cells:1024 Number of degrees of freedom:4225 Assembling matrix and right hand side...done (0.258471s) Solving system...done (0.095781s) Cycle 2 Number of active cells:4096 Number of degrees of freedom:16641 Assembling matrix and right hand side...done (1.04128s) Solving system...done (0.606441s) Cycle 3 Number of active cells:16384 Number of degrees of freedom:66049 Assembling matrix and right hand side...done (4.15893s) Solving system...done (2.62675s) Error analysis: cycle cells dofs L2 H1 Linfty Time 0 256 1089 1.373e-04 - 4.515e-03 - 2.888e-04 0.9015 1 1024 4225 4.057e-05 1.76 1.176e-03 1.94 7.300e-05 1.0425 2 4096 16641 1.389e-05 1.55 3.059e-04 1.94 2.153e-05 3.1507 3 16384 66049 4.886e-06 1.51 7.961e-05 1.94 6.906e-06 11.5747 Beginning adaptive meshing using gradient error estimate... Cycle 0 Number of active cells:256 Number of degrees of freedom:1089 Assembling matrix and right hand side...done (0.066804s) Solving system...done (0.030156s) Cycle 1 Refining mesh...done (0.108225s) Number of active cells:412 Number of degrees of freedom:1783 Assembling matrix and right hand side...done (0.106224s) Solving system...done (0.051317s) Cycle 2 Refining mesh...done (0.169849s) Number of active cells:664 Number of degrees of freedom:2847 Assembling matrix and right hand side...done (0.169883s) Solving system...done (0.072396s) Cycle 3 Refining mesh...done (0.257236s) Number of active cells:1066 Number of degrees of freedom:4531 Assembling matrix and right hand side...done (0.272909s) Solving system...done (0.132884s) Cycle 4 Refining mesh...done (0.416573s) Number of active cells:1696 Number of degrees of freedom:7163 Assembling matrix and right hand side...done (0.441513s) Solving system...done (0.267674s) Cycle 5 Refining mesh...done (0.633858s) Number of active cells:2704 Number of degrees of freedom:11249 Assembling matrix and right hand side...done (0.689563s) Solving system...done (0.349254s) Error analysis: cycle cells dofs L2 H1 Linfty Time 0 256 1089 1.373e-04 4.515e-03 2.888e-04 0.6235 1 412 1783 1.328e-04 4.102e-03 2.883e-04 0.7799 2 664 2847 1.103e-04 2.941e-03 2.762e-04 0.9787 3 1066 4531 7.180e-05 1.820e-03 2.378e-04 1.3121 4 1696 7163 5.622e-05 1.421e-03 2.109e-04 1.9213 5 2704 11249 5.079e-05 1.232e-03 2.070e-04 2.7379 Beginning adaptive meshing using hessian error estimate... Cycle 0 Number of active cells:256 Number of degrees of freedom:1089 Assembling matrix and right hand side...done (0.0662s) Solving system...done (0.023405s) Cycle 1 Refining mesh...done (0.079481s) Number of active cells:412 Number of degrees of freedom:1787 Assembling matrix and right hand side...done (0.106892s) Solving system...done (0.054191s) Cycle 2 Refining mesh...done (0.148035s) Number of active cells:664 Number of degrees of freedom:3007 Assembling matrix and right hand side...done (0.173202s) Solving system...done (0.044254s) Cycle 3 Refining mesh...done (0.217909s) Number of active cells:1066 Number of degrees of freedom:4771 Assembling matrix and right hand side...done (0.277105s) Solving system...done (0.131526s) Cycle 4 Refining mesh...done (0.341256s) Number of active cells:1708 Number of degrees of freedom:7681 Assembling matrix and right hand side...done (0.444573s) Solving system...done (0.199247s) Cycle 5 Refining mesh...done (0.560242s) Number of active cells:2734 Number of degrees of freedom:12217 Assembling matrix and right hand side...done (0.711399s) Solving system...done (0.339731s) Error analysis: cycle cells dofs L2 H1 Linfty Time 0 256 1089 1.373e-04 4.515e-03 2.888e-04 0.5499 1 412 1787 6.920e-05 3.491e-03 1.249e-04 0.6903 2 664 3007 5.358e-05 3.225e-03 1.064e-04 0.9506 3 1066 4771 4.426e-05 2.665e-03 1.005e-04 1.3099 4 1708 7681 3.036e-05 1.791e-03 9.672e-05 1.8207 5 2734 12217 1.662e-05 1.149e-03 9.116e-05 2.6863