spiral (log grid) eps 0.2 {'sup_C0': 0.4791989752185318, 'over_eps': 2.395994876092659, 'at_r': 0.040548829112894126, 'max_abs_jac_minus_1': 1.621153546786927e-16}
spiral (log grid) eps 0.1 {'sup_C0': 0.21999748953363607, 'over_eps': 2.1999748953363607, 'at_r': 0.003372187998862914, 'max_abs_jac_minus_1': 1.8762379880599743e-16}
spiral (log grid) eps 0.05 {'sup_C0': 0.10499988302192213, 'over_eps': 2.0999976604384427, 'at_r': 2.246713172155642e-05, 'max_abs_jac_minus_1': 1.6414082408259967e-16}
spiral (log grid) eps 0.025 {'sup_C0': 0.05124998817599406, 'over_eps': 2.0499995270397626, 'at_r': 1.040405045269767e-09, 'max_abs_jac_minus_1': 2.127607772262207e-16}
